linux/Documentation/sound/alsa/ALSA-Configuration.txt
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   1
   2                Advanced Linux Sound Architecture - Driver
   3                ==========================================
   4                            Configuration guide
   5
   6
   7Kernel Configuration
   8====================
   9
  10To enable ALSA support you need at least to build the kernel with
  11primary sound card support (CONFIG_SOUND).  Since ALSA can emulate OSS,
  12you don't have to choose any of the OSS modules.
  13
  14Enable "OSS API emulation" (CONFIG_SND_OSSEMUL) and both OSS mixer and
  15PCM supports if you want to run OSS applications with ALSA.
  16
  17If you want to support the WaveTable functionality on cards such as
  18SB Live! then you need to enable "Sequencer support"
  19(CONFIG_SND_SEQUENCER).
  20
  21To make ALSA debug messages more verbose, enable the "Verbose printk"
  22and "Debug" options.  To check for memory leaks, turn on "Debug memory"
  23too.  "Debug detection" will add checks for the detection of cards.
  24
  25Please note that all the ALSA ISA drivers support the Linux isapnp API
  26(if the card supports ISA PnP).  You don't need to configure the cards
  27using isapnptools.
  28
  29
  30Creating ALSA devices
  31=====================
  32
  33This depends on your distribution, but normally you use the /dev/MAKEDEV
  34script to create the necessary device nodes.  On some systems you use a
  35script named 'snddevices'.
  36
  37
  38Module parameters
  39=================
  40
  41The user can load modules with options. If the module supports more than
  42one card and you have more than one card of the same type then you can
  43specify multiple values for the option separated by commas.
  44
  45Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
  46
  47  Module snd
  48  ----------
  49
  50    The core ALSA module.  It is used by all ALSA card drivers.
  51    It takes the following options which have global effects.
  52
  53    major       - major number for sound driver
  54                - Default: 116
  55    cards_limit
  56                - limiting card index for auto-loading (1-8)
  57                - Default: 1
  58                - For auto-loading more than one card, specify this
  59                  option together with snd-card-X aliases.
  60    slots       - Reserve the slot index for the given driver.
  61                  This option takes multiple strings.           
  62                  See "Module Autoloading Support" section for details.
  63  
  64  Module snd-pcm-oss
  65  ------------------
  66
  67    The PCM OSS emulation module.
  68    This module takes options which change the mapping of devices.
  69
  70    dsp_map     - PCM device number maps assigned to the 1st OSS device.
  71                - Default: 0
  72    adsp_map    - PCM device number maps assigned to the 2st OSS device.
  73                - Default: 1
  74    nonblock_open
  75                - Don't block opening busy PCM devices.  Default: 1
  76
  77    For example, when dsp_map=2, /dev/dsp will be mapped to PCM #2 of
  78    the card #0.  Similarly, when adsp_map=0, /dev/adsp will be mapped
  79    to PCM #0 of the card #0.
  80    For changing the second or later card, specify the option with
  81    commas, such like "dsp_map=0,1".
  82
  83    nonblock_open option is used to change the behavior of the PCM
  84    regarding opening the device.  When this option is non-zero,
  85    opening a busy OSS PCM device won't be blocked but return
  86    immediately with EAGAIN (just like O_NONBLOCK flag).
  87    
  88  Module snd-rawmidi
  89  ------------------
  90
  91    This module takes options which change the mapping of devices.
  92    similar to those of the snd-pcm-oss module.
  93
  94    midi_map    - MIDI device number maps assigned to the 1st OSS device.
  95                - Default: 0
  96    amidi_map   - MIDI device number maps assigned to the 2st OSS device.
  97                - Default: 1
  98
  99  Common parameters for top sound card modules
 100  --------------------------------------------
 101
 102    Each of top level sound card module takes the following options.
 103
 104    index       - index (slot #) of sound card
 105                - Values: 0 through 31 or negative
 106                - If nonnegative, assign that index number
 107                - if negative, interpret as a bitmask of permissible
 108                  indices; the first free permitted index is assigned
 109                - Default: -1
 110    id          - card ID (identifier or name)
 111                - Can be up to 15 characters long
 112                - Default: the card type
 113                - A directory by this name is created under /proc/asound/
 114                  containing information about the card
 115                - This ID can be used instead of the index number in
 116                  identifying the card
 117    enable      - enable card
 118                - Default: enabled, for PCI and ISA PnP cards
 119
 120  Module snd-adlib
 121  ----------------
 122
 123    Module for AdLib FM cards.
 124
 125    port        - port # for OPL chip
 126
 127    This module supports multiple cards. It does not support autoprobe, so
 128    the port must be specified. For actual AdLib FM cards it will be 0x388.
 129    Note that this card does not have PCM support and no mixer; only FM
 130    synthesis.
 131
 132    Make sure you have "sbiload" from the alsa-tools package available and,
 133    after loading the module, find out the assigned ALSA sequencer port
 134    number through "sbiload -l". Example output:
 135
 136      Port     Client name                       Port name
 137      64:0     OPL2 FM synth                     OPL2 FM Port
 138
 139    Load the std.sb and drums.sb patches also supplied by sbiload:
 140
 141      sbiload -p 64:0 std.sb drums.sb
 142
 143    If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
 144    instead. To have the card produce sound, use aplaymidi from alsa-utils:
 145
 146      aplaymidi -p 64:0 foo.mid
 147
 148  Module snd-ad1816a
 149  ------------------
 150
 151    Module for sound cards based on Analog Devices AD1816A/AD1815 ISA chips.
 152
 153    clockfreq   - Clock frequency for AD1816A chip (default = 0, 33000Hz)
 154    
 155    This module supports multiple cards, autoprobe and PnP.
 156    
 157  Module snd-ad1848
 158  -----------------
 159
 160    Module for sound cards based on AD1848/AD1847/CS4248 ISA chips.
 161
 162    port        - port # for AD1848 chip
 163    irq         - IRQ # for AD1848  chip
 164    dma1        - DMA # for AD1848 chip (0,1,3)
 165    
 166    This module supports multiple cards.  It does not support autoprobe
 167    thus main port must be specified!!! Other ports are optional.
 168    
 169    The power-management is supported.
 170
 171  Module snd-ad1889
 172  -----------------
 173
 174    Module for Analog Devices AD1889 chips.
 175
 176    ac97_quirk  - AC'97 workaround for strange hardware
 177                  See the description of intel8x0 module for details.
 178
 179    This module supports multiple cards.
 180
 181  Module snd-ali5451
 182  ------------------
 183
 184    Module for ALi M5451 PCI chip.
 185
 186    pcm_channels    - Number of hardware channels assigned for PCM
 187    spdif           - Support SPDIF I/O
 188                    - Default: disabled
 189
 190    This module supports one chip and autoprobe.
 191
 192    The power-management is supported.
 193
 194  Module snd-als100
 195  -----------------
 196
 197    Module for sound cards based on Avance Logic ALS100/ALS120 ISA chips.
 198
 199    This module supports multiple cards, autoprobe and PnP.
 200
 201    The power-management is supported.
 202
 203  Module snd-als300
 204  -----------------
 205
 206    Module for  Avance Logic ALS300 and ALS300+
 207
 208    This module supports multiple cards.
 209
 210    The power-management is supported.
 211
 212  Module snd-als4000
 213  ------------------
 214
 215    Module for sound cards based on Avance Logic ALS4000 PCI chip.
 216
 217    joystick_port - port # for legacy joystick support.
 218                    0 = disabled (default), 1 = auto-detect
 219    
 220    This module supports multiple cards, autoprobe and PnP.
 221
 222    The power-management is supported.
 223
 224  Module snd-atiixp
 225  -----------------
 226
 227    Module for ATI IXP 150/200/250/400 AC97 controllers.
 228
 229    ac97_clock          - AC'97 clock (default = 48000)
 230    ac97_quirk          - AC'97 workaround for strange hardware
 231                          See "AC97 Quirk Option" section below.
 232    ac97_codec          - Workaround to specify which AC'97 codec 
 233                          instead of probing.  If this works for you
 234                          file a bug with your `lspci -vn` output.
 235                          -2  -- Force probing.
 236                          -1  -- Default behavior.
 237                          0-2 -- Use the specified codec.
 238    spdif_aclink        - S/PDIF transfer over AC-link (default = 1)
 239
 240    This module supports one card and autoprobe.
 241
 242    ATI IXP has two different methods to control SPDIF output.  One is
 243    over AC-link and another is over the "direct" SPDIF output.  The
 244    implementation depends on the motherboard, and you'll need to
 245    choose the correct one via spdif_aclink module option.
 246
 247    The power-management is supported.
 248
 249  Module snd-atiixp-modem
 250  -----------------------
 251
 252    Module for ATI IXP 150/200/250 AC97 modem controllers.
 253
 254    This module supports one card and autoprobe.
 255
 256    Note: The default index value of this module is -2, i.e. the first
 257          slot is excluded.
 258
 259    The power-management is supported.
 260
 261  Module snd-au8810, snd-au8820, snd-au8830
 262  -----------------------------------------
 263
 264    Module for Aureal Vortex, Vortex2 and Advantage device.
 265
 266    pcifix      - Control PCI workarounds
 267                  0 = Disable all workarounds
 268                  1 = Force the PCI latency of the Aureal card to 0xff
 269                  2 = Force the Extend PCI#2 Internal Master for Efficient
 270                      Handling of Dummy Requests on the VIA KT133 AGP Bridge
 271                  3 = Force both settings
 272                  255 = Autodetect what is required (default)
 273
 274    This module supports all ADB PCM channels, ac97 mixer, SPDIF, hardware
 275    EQ, mpu401, gameport. A3D and wavetable support are still in development.
 276    Development and reverse engineering work is being coordinated at
 277    http://savannah.nongnu.org/projects/openvortex/
 278    SPDIF output has a copy of the AC97 codec output, unless you use the
 279    "spdif" pcm device, which allows raw data passthru.
 280    The hardware EQ hardware and SPDIF is only present in the Vortex2 and 
 281    Advantage.
 282
 283    Note: Some ALSA mixer applications don't handle the SPDIF sample rate 
 284           control correctly. If you have problems regarding this, try
 285           another ALSA compliant mixer (alsamixer works).
 286
 287  Module snd-azt2320
 288  ------------------
 289
 290    Module for sound cards based on Aztech System AZT2320 ISA chip (PnP only).
 291
 292    This module supports multiple cards, PnP and autoprobe.
 293    
 294    The power-management is supported.
 295
 296  Module snd-azt3328
 297  ------------------
 298
 299    Module for sound cards based on Aztech AZF3328 PCI chip.
 300
 301    joystick    - Enable joystick (default off)
 302
 303    This module supports multiple cards.
 304
 305  Module snd-bt87x
 306  ----------------
 307
 308    Module for video cards based on Bt87x chips.
 309
 310    digital_rate - Override the default digital rate (Hz)
 311    load_all    - Load the driver even if the card model isn't known
 312
 313    This module supports multiple cards.
 314
 315    Note: The default index value of this module is -2, i.e. the first
 316          slot is excluded.
 317
 318  Module snd-ca0106
 319  -----------------
 320
 321    Module for Creative Audigy LS and SB Live 24bit
 322
 323    This module supports multiple cards.
 324
 325
 326  Module snd-cmi8330
 327  ------------------
 328
 329    Module for sound cards based on C-Media CMI8330 ISA chips.
 330
 331    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
 332
 333    with isapnp=0, the following options are available:
 334
 335    wssport     - port # for CMI8330 chip (WSS)
 336    wssirq      - IRQ # for CMI8330 chip (WSS)
 337    wssdma      - first DMA # for CMI8330 chip (WSS)
 338    sbport      - port # for CMI8330 chip (SB16)
 339    sbirq       - IRQ # for CMI8330 chip (SB16)
 340    sbdma8      - 8bit DMA # for CMI8330 chip (SB16)
 341    sbdma16     - 16bit DMA # for CMI8330 chip (SB16)
 342
 343    This module supports multiple cards and autoprobe.
 344
 345    The power-management is supported.
 346
 347  Module snd-cmipci
 348  -----------------
 349
 350    Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
 351
 352    mpu_port    - port address of MIDI interface (8338 only):
 353                  0x300,0x310,0x320,0x330 = legacy port,
 354                  0 = disable (default)
 355    fm_port     - port address of OPL-3 FM synthesizer (8x38 only):
 356                  0x388 = legacy port,
 357                  1 = integrated PCI port (default on 8738),
 358                  0 = disable
 359    soft_ac3    - Software-conversion of raw SPDIF packets (model 033 only)
 360                  (default = 1)
 361    joystick_port - Joystick port address (0 = disable, 1 = auto-detect)
 362
 363    This module supports autoprobe and multiple cards.
 364    
 365    The power-management is supported.
 366
 367  Module snd-cs4231
 368  -----------------
 369
 370    Module for sound cards based on CS4231 ISA chips.
 371
 372    port        - port # for CS4231 chip
 373    mpu_port    - port # for MPU-401 UART (optional), -1 = disable
 374    irq         - IRQ # for CS4231 chip
 375    mpu_irq     - IRQ # for MPU-401 UART
 376    dma1        - first DMA # for CS4231 chip
 377    dma2        - second DMA # for CS4231 chip
 378    
 379    This module supports multiple cards. This module does not support autoprobe
 380    thus main port must be specified!!! Other ports are optional.
 381
 382    The power-management is supported.
 383    
 384  Module snd-cs4232
 385  -----------------
 386
 387    Module for sound cards based on CS4232/CS4232A ISA chips.
 388
 389    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
 390
 391    with isapnp=0, the following options are available:
 392
 393    port        - port # for CS4232 chip (PnP setup - 0x534)
 394    cport       - control port # for CS4232 chip (PnP setup - 0x120,0x210,0xf00)
 395    mpu_port    - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
 396    fm_port     - FM port # for CS4232 chip (PnP setup - 0x388), -1 = disable
 397    irq         - IRQ # for CS4232 chip (5,7,9,11,12,15)
 398    mpu_irq     - IRQ # for MPU-401 UART (9,11,12,15)
 399    dma1        - first DMA # for CS4232 chip (0,1,3)
 400    dma2        - second DMA # for Yamaha CS4232 chip (0,1,3), -1 = disable
 401    
 402    This module supports multiple cards. This module does not support autoprobe
 403    (if ISA PnP is not used) thus main port must be specified!!! Other ports are
 404    optional.
 405
 406    The power-management is supported.
 407    
 408  Module snd-cs4236
 409  -----------------
 410
 411    Module for sound cards based on CS4235/CS4236/CS4236B/CS4237B/
 412                                   CS4238B/CS4239 ISA chips.
 413
 414    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
 415
 416    with isapnp=0, the following options are available:
 417
 418    port        - port # for CS4236 chip (PnP setup - 0x534)
 419    cport       - control port # for CS4236 chip (PnP setup - 0x120,0x210,0xf00)
 420    mpu_port    - port # for MPU-401 UART (PnP setup - 0x300), -1 = disable
 421    fm_port     - FM port # for CS4236 chip (PnP setup - 0x388), -1 = disable
 422    irq         - IRQ # for CS4236 chip (5,7,9,11,12,15)
 423    mpu_irq     - IRQ # for MPU-401 UART (9,11,12,15)
 424    dma1        - first DMA # for CS4236 chip (0,1,3)
 425    dma2        - second DMA # for CS4236 chip (0,1,3), -1 = disable
 426    
 427    This module supports multiple cards. This module does not support autoprobe
 428    (if ISA PnP is not used) thus main port and control port must be
 429    specified!!! Other ports are optional.
 430
 431    The power-management is supported.
 432
 433  Module snd-cs4281
 434  -----------------
 435
 436    Module for Cirrus Logic CS4281 soundchip.
 437
 438    dual_codec  - Secondary codec ID (0 = disable, default)
 439
 440    This module supports multiple cards.
 441
 442    The power-management is supported.
 443
 444  Module snd-cs46xx
 445  -----------------
 446
 447    Module for PCI sound cards based on CS4610/CS4612/CS4614/CS4615/CS4622/
 448                                       CS4624/CS4630/CS4280 PCI chips.
 449
 450    external_amp     - Force to enable external amplifier.
 451    thinkpad         - Force to enable Thinkpad's CLKRUN control.
 452    mmap_valid       - Support OSS mmap mode (default = 0).
 453
 454    This module supports multiple cards and autoprobe.
 455    Usually external amp and CLKRUN controls are detected automatically
 456    from PCI sub vendor/device ids.  If they don't work, give the options
 457    above explicitly.
 458
 459    The power-management is supported.
 460
 461  Module snd-cs5530
 462  _________________
 463
 464    Module for Cyrix/NatSemi Geode 5530 chip. 
 465  
 466  Module snd-cs5535audio
 467  ----------------------
 468
 469    Module for multifunction CS5535 companion PCI device
 470
 471    The power-management is supported.
 472
 473  Module snd-darla20
 474  ------------------
 475
 476    Module for Echoaudio Darla20
 477
 478    This module supports multiple cards.
 479    The driver requires the firmware loader support on kernel.
 480
 481  Module snd-darla24
 482  ------------------
 483
 484    Module for Echoaudio Darla24
 485
 486    This module supports multiple cards.
 487    The driver requires the firmware loader support on kernel.
 488
 489  Module snd-dt019x
 490  -----------------
 491
 492    Module for Diamond Technologies DT-019X / Avance Logic ALS-007 (PnP
 493    only)
 494
 495    This module supports multiple cards.  This module is enabled only with
 496    ISA PnP support.
 497
 498    The power-management is supported.
 499
 500  Module snd-dummy
 501  ----------------
 502
 503    Module for the dummy sound card. This "card" doesn't do any output
 504    or input, but you may use this module for any application which
 505    requires a sound card (like RealPlayer).
 506
 507    The power-management is supported.
 508
 509  Module snd-echo3g
 510  -----------------
 511
 512    Module for Echoaudio 3G cards (Gina3G/Layla3G)
 513
 514    This module supports multiple cards.
 515    The driver requires the firmware loader support on kernel.
 516
 517  Module snd-emu10k1
 518  ------------------
 519
 520    Module for EMU10K1/EMU10k2 based PCI sound cards.
 521                        * Sound Blaster Live!
 522                        * Sound Blaster PCI 512
 523                        * Emu APS (partially supported)
 524                        * Sound Blaster Audigy
 525
 526    extin   - bitmap of available external inputs for FX8010 (see bellow)
 527    extout  - bitmap of available external outputs for FX8010 (see bellow)
 528    seq_ports - allocated sequencer ports (4 by default)
 529    max_synth_voices - limit of voices used for wavetable (64 by default)
 530    max_buffer_size  - specifies the maximum size of wavetable/pcm buffers
 531                       given in MB unit.  Default value is 128.
 532    enable_ir - enable IR
 533
 534    This module supports multiple cards and autoprobe.
 535
 536    Input & Output configurations                       [extin/extout]
 537        * Creative Card wo/Digital out                  [0x0003/0x1f03]
 538        * Creative Card w/Digital out                   [0x0003/0x1f0f]
 539        * Creative Card w/Digital CD in                 [0x000f/0x1f0f]
 540        * Creative Card wo/Digital out + LiveDrive      [0x3fc3/0x1fc3]
 541        * Creative Card w/Digital out + LiveDrive       [0x3fc3/0x1fcf]
 542        * Creative Card w/Digital CD in + LiveDrive     [0x3fcf/0x1fcf]
 543        * Creative Card wo/Digital out + Digital I/O 2  [0x0fc3/0x1f0f]
 544        * Creative Card w/Digital out + Digital I/O 2   [0x0fc3/0x1f0f]
 545        * Creative Card w/Digital CD in + Digital I/O 2 [0x0fcf/0x1f0f]
 546        * Creative Card 5.1/w Digital out + LiveDrive   [0x3fc3/0x1fff]
 547        * Creative Card 5.1 (c) 2003                    [0x3fc3/0x7cff]
 548        * Creative Card all ins and outs                [0x3fff/0x7fff]
 549    
 550    The power-management is supported.
 551
 552  Module snd-emu10k1x
 553  -------------------
 554
 555    Module for Creative Emu10k1X (SB Live Dell OEM version)
 556
 557    This module supports multiple cards.
 558
 559  Module snd-ens1370
 560  ------------------
 561
 562    Module for Ensoniq AudioPCI ES1370 PCI sound cards.
 563                        * SoundBlaster PCI 64
 564                        * SoundBlaster PCI 128
 565
 566    joystick            - Enable joystick (default off)
 567
 568    This module supports multiple cards and autoprobe.
 569    
 570    The power-management is supported.
 571
 572  Module snd-ens1371
 573  ------------------
 574
 575    Module for Ensoniq AudioPCI ES1371 PCI sound cards.
 576                        * SoundBlaster PCI 64
 577                        * SoundBlaster PCI 128
 578                        * SoundBlaster Vibra PCI
 579
 580    joystick_port       - port # for joystick (0x200,0x208,0x210,0x218),
 581                          0 = disable (default), 1 = auto-detect
 582
 583    This module supports multiple cards and autoprobe.
 584    
 585    The power-management is supported.
 586
 587  Module snd-es968
 588  ----------------
 589
 590    Module for sound cards based on ESS ES968 chip (PnP only).
 591
 592    This module supports multiple cards, PnP and autoprobe.
 593    
 594    The power-management is supported.
 595
 596  Module snd-es1688
 597  -----------------
 598
 599    Module for ESS AudioDrive ES-1688 and ES-688 sound cards.
 600
 601    port        - port # for ES-1688 chip (0x220,0x240,0x260)
 602    mpu_port    - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
 603    irq         - IRQ # for ES-1688 chip (5,7,9,10)
 604    mpu_irq     - IRQ # for MPU-401 port (5,7,9,10)
 605    dma8        - DMA # for ES-1688 chip (0,1,3)
 606
 607    This module supports multiple cards and autoprobe (without MPU-401 port).
 608
 609  Module snd-es18xx
 610  -----------------
 611
 612    Module for ESS AudioDrive ES-18xx sound cards.
 613
 614    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
 615
 616    with isapnp=0, the following options are available:
 617
 618    port        - port # for ES-18xx chip (0x220,0x240,0x260)
 619    mpu_port    - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default)
 620    fm_port     - port # for FM (optional, not used)
 621    irq         - IRQ # for ES-18xx chip (5,7,9,10)
 622    dma1        - first DMA # for ES-18xx chip (0,1,3)
 623    dma2        - first DMA # for ES-18xx chip (0,1,3)
 624
 625    This module supports multiple cards, ISA PnP and autoprobe (without MPU-401
 626    port if native ISA PnP routines are not used).
 627    When dma2 is equal with dma1, the driver works as half-duplex.
 628
 629    The power-management is supported.
 630
 631  Module snd-es1938
 632  -----------------
 633
 634    Module for sound cards based on ESS Solo-1 (ES1938,ES1946) chips.
 635
 636    This module supports multiple cards and autoprobe.
 637
 638    The power-management is supported.
 639
 640  Module snd-es1968
 641  -----------------
 642
 643    Module for sound cards based on ESS Maestro-1/2/2E (ES1968/ES1978) chips.
 644
 645    total_bufsize       - total buffer size in kB (1-4096kB)
 646    pcm_substreams_p    - playback channels (1-8, default=2)
 647    pcm_substreams_c    - capture channels (1-8, default=0)
 648    clock               - clock (0 = auto-detection)
 649    use_pm              - support the power-management (0 = off, 1 = on,
 650                          2 = auto (default))
 651    enable_mpu          - enable MPU401 (0 = off, 1 = on, 2 = auto (default))
 652    joystick            - enable joystick (default off)       
 653
 654    This module supports multiple cards and autoprobe.
 655
 656    The power-management is supported.
 657
 658  Module snd-fm801
 659  ----------------
 660
 661    Module for ForteMedia FM801 based PCI sound cards.
 662
 663    tea575x_tuner       - Enable TEA575x tuner
 664                          - 1 = MediaForte 256-PCS
 665                          - 2 = MediaForte 256-PCPR
 666                          - 3 = MediaForte 64-PCR  
 667                          - High 16-bits are video (radio) device number + 1
 668                          - example: 0x10002 (MediaForte 256-PCPR, device 1)
 669
 670    This module supports multiple cards and autoprobe.
 671    
 672    The power-management is supported.
 673
 674  Module snd-gina20
 675  -----------------
 676
 677    Module for Echoaudio Gina20
 678
 679    This module supports multiple cards.
 680    The driver requires the firmware loader support on kernel.
 681
 682  Module snd-gina24
 683  -----------------
 684
 685    Module for Echoaudio Gina24
 686
 687    This module supports multiple cards.
 688    The driver requires the firmware loader support on kernel.
 689
 690  Module snd-gusclassic
 691  ---------------------
 692
 693    Module for Gravis UltraSound Classic sound card.
 694
 695    port        - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
 696    irq         - IRQ # for GF1 chip (3,5,9,11,12,15)
 697    dma1        - DMA # for GF1 chip (1,3,5,6,7)
 698    dma2        - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
 699    joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
 700    voices      - GF1 voices limit (14-32)
 701    pcm_voices  - reserved PCM voices
 702
 703    This module supports multiple cards and autoprobe.
 704
 705  Module snd-gusextreme
 706  ---------------------
 707
 708    Module for Gravis UltraSound Extreme (Synergy ViperMax) sound card.
 709
 710    port        - port # for ES-1688 chip (0x220,0x230,0x240,0x250,0x260)
 711    gf1_port    - port # for GF1 chip (0x210,0x220,0x230,0x240,0x250,0x260,0x270)
 712    mpu_port    - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable
 713    irq         - IRQ # for ES-1688 chip (5,7,9,10)
 714    gf1_irq     - IRQ # for GF1 chip (3,5,9,11,12,15)
 715    mpu_irq     - IRQ # for MPU-401 port (5,7,9,10)
 716    dma8        - DMA # for ES-1688 chip (0,1,3)
 717    dma1        - DMA # for GF1 chip (1,3,5,6,7)
 718    joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
 719    voices      - GF1 voices limit (14-32)
 720    pcm_voices  - reserved PCM voices
 721
 722    This module supports multiple cards and autoprobe (without MPU-401 port).
 723
 724  Module snd-gusmax
 725  -----------------
 726
 727    Module for Gravis UltraSound MAX sound card.
 728
 729    port        - port # for GF1 chip (0x220,0x230,0x240,0x250,0x260)
 730    irq         - IRQ # for GF1 chip (3,5,9,11,12,15)
 731    dma1        - DMA # for GF1 chip (1,3,5,6,7)
 732    dma2        - DMA # for GF1 chip (1,3,5,6,7,-1=disable)
 733    joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
 734    voices      - GF1 voices limit (14-32)
 735    pcm_voices  - reserved PCM voices
 736
 737    This module supports multiple cards and autoprobe.
 738    
 739  Module snd-hda-intel
 740  --------------------
 741
 742    Module for Intel HD Audio (ICH6, ICH6M, ESB2, ICH7, ICH8),
 743                ATI SB450, SB600, RS600,
 744                VIA VT8251/VT8237A,
 745                SIS966, ULI M5461
 746
 747    [Multiple options for each card instance]
 748    model       - force the model name
 749    position_fix - Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size)
 750    probe_mask  - Bitmask to probe codecs (default = -1, meaning all slots)
 751    
 752    [Single (global) options]
 753    single_cmd  - Use single immediate commands to communicate with
 754                codecs (for debugging only)
 755    enable_msi  - Enable Message Signaled Interrupt (MSI) (default = off)
 756    power_save  - Automatic power-saving timtout (in second, 0 =
 757                disable)
 758    power_save_controller - Reset HD-audio controller in power-saving mode
 759                (default = on)
 760
 761    This module supports multiple cards and autoprobe.
 762    
 763    Each codec may have a model table for different configurations.
 764    If your machine isn't listed there, the default (usually minimal)
 765    configuration is set up.  You can pass "model=<name>" option to
 766    specify a certain model in such a case.  There are different
 767    models depending on the codec chip.
 768
 769          Model name    Description
 770          ----------    -----------
 771        ALC880
 772          3stack        3-jack in back and a headphone out
 773          3stack-digout 3-jack in back, a HP out and a SPDIF out
 774          5stack        5-jack in back, 2-jack in front
 775          5stack-digout 5-jack in back, 2-jack in front, a SPDIF out
 776          6stack        6-jack in back, 2-jack in front
 777          6stack-digout 6-jack with a SPDIF out
 778          w810          3-jack
 779          z71v          3-jack (HP shared SPDIF)
 780          asus          3-jack (ASUS Mobo)
 781          asus-w1v      ASUS W1V
 782          asus-dig      ASUS with SPDIF out
 783          asus-dig2     ASUS with SPDIF out (using GPIO2)
 784          uniwill       3-jack
 785          fujitsu       Fujitsu Laptops (Pi1536)
 786          F1734         2-jack
 787          lg            LG laptop (m1 express dual)
 788          lg-lw         LG LW20/LW25 laptop
 789          tcl           TCL S700
 790          clevo         Clevo laptops (m520G, m665n)
 791          test          for testing/debugging purpose, almost all controls can be
 792                        adjusted.  Appearing only when compiled with
 793                        $CONFIG_SND_DEBUG=y
 794          auto          auto-config reading BIOS (default)
 795
 796        ALC260
 797          hp            HP machines
 798          hp-3013       HP machines (3013-variant)
 799          fujitsu       Fujitsu S7020
 800          acer          Acer TravelMate
 801          will          Will laptops (PB V7900)
 802          replacer      Replacer 672V
 803          basic         fixed pin assignment (old default model)
 804          test          for testing/debugging purpose, almost all controls can
 805                        adjusted.  Appearing only when compiled with
 806                        $CONFIG_SND_DEBUG=y
 807          auto          auto-config reading BIOS (default)
 808
 809        ALC262
 810          fujitsu       Fujitsu Laptop
 811          hp-bpc        HP xw4400/6400/8400/9400 laptops
 812          hp-bpc-d7000  HP BPC D7000
 813          hp-tc-t5735   HP Thin Client T5735
 814          hp-rp5700     HP RP5700
 815          benq          Benq ED8
 816          benq-t31      Benq T31
 817          hippo         Hippo (ATI) with jack detection, Sony UX-90s
 818          hippo_1       Hippo (Benq) with jack detection
 819          sony-assamd   Sony ASSAMD
 820          ultra         Samsung Q1 Ultra Vista model
 821          basic         fixed pin assignment w/o SPDIF
 822          auto          auto-config reading BIOS (default)
 823
 824        ALC268
 825          3stack        3-stack model
 826          toshiba       Toshiba A205
 827          acer          Acer laptops
 828          dell          Dell OEM laptops (Vostro 1200)
 829          test          for testing/debugging purpose, almost all controls can
 830                        adjusted.  Appearing only when compiled with
 831                        $CONFIG_SND_DEBUG=y
 832          auto          auto-config reading BIOS (default)
 833
 834        ALC662
 835          3stack-dig    3-stack (2-channel) with SPDIF
 836          3stack-6ch     3-stack (6-channel)
 837          3stack-6ch-dig 3-stack (6-channel) with SPDIF
 838          6stack-dig     6-stack with SPDIF
 839          lenovo-101e    Lenovo laptop
 840          eeepc-p701    ASUS Eeepc P701
 841          eeepc-ep20    ASUS Eeepc EP20
 842          auto          auto-config reading BIOS (default)
 843
 844        ALC882/885
 845          3stack-dig    3-jack with SPDIF I/O
 846          6stack-dig    6-jack digital with SPDIF I/O
 847          arima         Arima W820Di1
 848          targa         Targa T8, MSI-1049 T8
 849          asus-a7j      ASUS A7J
 850          asus-a7m      ASUS A7M
 851          macpro        MacPro support
 852          mbp3          Macbook Pro rev3
 853          imac24        iMac 24'' with jack detection
 854          w2jc          ASUS W2JC
 855          auto          auto-config reading BIOS (default)
 856
 857        ALC883/888
 858          3stack-dig    3-jack with SPDIF I/O
 859          6stack-dig    6-jack digital with SPDIF I/O
 860          3stack-6ch    3-jack 6-channel
 861          3stack-6ch-dig 3-jack 6-channel with SPDIF I/O
 862          6stack-dig-demo  6-jack digital for Intel demo board
 863          acer          Acer laptops (Travelmate 3012WTMi, Aspire 5600, etc)
 864          acer-aspire   Acer Aspire 9810
 865          medion        Medion Laptops
 866          medion-md2    Medion MD2
 867          targa-dig     Targa/MSI
 868          targa-2ch-dig Targs/MSI with 2-channel
 869          laptop-eapd   3-jack with SPDIF I/O and EAPD (Clevo M540JE, M550JE)
 870          lenovo-101e   Lenovo 101E
 871          lenovo-nb0763 Lenovo NB0763
 872          lenovo-ms7195-dig Lenovo MS7195
 873          haier-w66     Haier W66
 874          6stack-hp     HP machines with 6stack (Nettle boards)
 875          3stack-hp     HP machines with 3stack (Lucknow, Samba boards)
 876          6stack-dell   Dell machines with 6stack (Inspiron 530)
 877          mitac         Mitac 8252D
 878          auto          auto-config reading BIOS (default)
 879
 880        ALC861/660
 881          3stack        3-jack
 882          3stack-dig    3-jack with SPDIF I/O
 883          6stack-dig    6-jack with SPDIF I/O
 884          3stack-660    3-jack (for ALC660)
 885          uniwill-m31   Uniwill M31 laptop
 886          toshiba       Toshiba laptop support
 887          asus          Asus laptop support
 888          asus-laptop   ASUS F2/F3 laptops
 889          auto          auto-config reading BIOS (default)
 890
 891        ALC861VD/660VD
 892          3stack        3-jack
 893          3stack-dig    3-jack with SPDIF OUT
 894          6stack-dig    6-jack with SPDIF OUT
 895          3stack-660    3-jack (for ALC660VD)
 896          3stack-660-digout 3-jack with SPDIF OUT (for ALC660VD)
 897          lenovo        Lenovo 3000 C200
 898          dallas        Dallas laptops
 899          hp            HP TX1000
 900          auto          auto-config reading BIOS (default)
 901
 902        CMI9880
 903          minimal       3-jack in back
 904          min_fp        3-jack in back, 2-jack in front
 905          full          6-jack in back, 2-jack in front
 906          full_dig      6-jack in back, 2-jack in front, SPDIF I/O
 907          allout        5-jack in back, 2-jack in front, SPDIF out
 908          auto          auto-config reading BIOS (default)
 909
 910        AD1882
 911          3stack        3-stack mode (default)
 912          6stack        6-stack mode
 913
 914        AD1884
 915          N/A
 916
 917        AD1981
 918          basic         3-jack (default)
 919          hp            HP nx6320
 920          thinkpad      Lenovo Thinkpad T60/X60/Z60
 921          toshiba       Toshiba U205
 922
 923        AD1983
 924          N/A
 925
 926        AD1984
 927          basic         default configuration
 928          thinkpad      Lenovo Thinkpad T61/X61
 929          dell          Dell T3400
 930
 931        AD1986A
 932          6stack        6-jack, separate surrounds (default)
 933          3stack        3-stack, shared surrounds
 934          laptop        2-channel only (FSC V2060, Samsung M50)
 935          laptop-eapd   2-channel with EAPD (Samsung R65, ASUS A6J)
 936          laptop-automute 2-channel with EAPD and HP-automute (Lenovo N100)
 937          ultra         2-channel with EAPD (Samsung Ultra tablet PC)
 938
 939        AD1988
 940          6stack        6-jack
 941          6stack-dig    ditto with SPDIF
 942          3stack        3-jack
 943          3stack-dig    ditto with SPDIF
 944          laptop        3-jack with hp-jack automute
 945          laptop-dig    ditto with SPDIF
 946          auto          auto-config reading BIOS (default)
 947        
 948        Conexant 5045
 949          laptop-hpsense    Laptop with HP sense (old model laptop)
 950          laptop-micsense   Laptop with Mic sense (old model fujitsu)
 951          laptop-hpmicsense Laptop with HP and Mic senses
 952          benq          Benq R55E
 953          test          for testing/debugging purpose, almost all controls
 954                        can be adjusted.  Appearing only when compiled with
 955                        $CONFIG_SND_DEBUG=y
 956
 957        Conexant 5047
 958          laptop        Basic Laptop config 
 959          laptop-hp     Laptop config for some HP models (subdevice 30A5)
 960          laptop-eapd   Laptop config with EAPD support
 961          test          for testing/debugging purpose, almost all controls
 962                        can be adjusted.  Appearing only when compiled with
 963                        $CONFIG_SND_DEBUG=y
 964
 965        Conexant 5051
 966          laptop        Basic Laptop config (default)
 967          hp            HP Spartan laptop
 968
 969        STAC9200
 970          ref           Reference board
 971          dell-d21      Dell (unknown)
 972          dell-d22      Dell (unknown)
 973          dell-d23      Dell (unknown)
 974          dell-m21      Dell Inspiron 630m, Dell Inspiron 640m
 975          dell-m22      Dell Latitude D620, Dell Latitude D820
 976          dell-m23      Dell XPS M1710, Dell Precision M90
 977          dell-m24      Dell Latitude 120L
 978          dell-m25      Dell Inspiron E1505n
 979          dell-m26      Dell Inspiron 1501
 980          dell-m27      Dell Inspiron E1705/9400
 981          gateway       Gateway laptops with EAPD control
 982
 983        STAC9205/9254
 984          ref           Reference board
 985          dell-m42      Dell (unknown)
 986          dell-m43      Dell Precision
 987          dell-m44      Dell Inspiron
 988
 989        STAC9220/9221
 990          ref           Reference board
 991          3stack        D945 3stack
 992          5stack        D945 5stack + SPDIF
 993          intel-mac-v1  Intel Mac Type 1
 994          intel-mac-v2  Intel Mac Type 2
 995          intel-mac-v3  Intel Mac Type 3
 996          intel-mac-v4  Intel Mac Type 4
 997          intel-mac-v5  Intel Mac Type 5
 998          macmini       Intel Mac Mini (equivalent with type 3)
 999          macbook       Intel Mac Book (eq. type 5)
1000          macbook-pro-v1 Intel Mac Book Pro 1st generation (eq. type 3)
1001          macbook-pro   Intel Mac Book Pro 2nd generation (eq. type 3)
1002          imac-intel    Intel iMac (eq. type 2)
1003          imac-intel-20 Intel iMac (newer version) (eq. type 3)
1004          dell-d81      Dell (unknown)
1005          dell-d82      Dell (unknown)
1006          dell-m81      Dell (unknown)
1007          dell-m82      Dell XPS M1210
1008
1009        STAC9202/9250/9251
1010          ref           Reference board, base config
1011          m2-2          Some Gateway MX series laptops
1012          m6            Some Gateway NX series laptops
1013          pa6           Gateway NX860 series
1014
1015        STAC9227/9228/9229/927x
1016          ref           Reference board
1017          3stack        D965 3stack
1018          5stack        D965 5stack + SPDIF
1019          dell-3stack   Dell Dimension E520
1020
1021        STAC9872
1022          vaio          Setup for VAIO FE550G/SZ110
1023          vaio-ar Setup for VAIO AR
1024
1025    The model name "genric" is treated as a special case.  When this
1026    model is given, the driver uses the generic codec parser without
1027    "codec-patch".  It's sometimes good for testing and debugging.
1028
1029    If the default configuration doesn't work and one of the above
1030    matches with your device, report it together with the PCI
1031    subsystem ID (output of "lspci -nv") to ALSA BTS or alsa-devel
1032    ML (see the section "Links and Addresses").
1033
1034    power_save and power_save_controller options are for power-saving
1035    mode.  See powersave.txt for details.
1036
1037    Note 2: If you get click noises on output, try the module option
1038            position_fix=1 or 2.  position_fix=1 will use the SD_LPIB
1039            register value without FIFO size correction as the current
1040            DMA pointer.  position_fix=2 will make the driver to use
1041            the position buffer instead of reading SD_LPIB register.
1042            (Usually SD_LPLIB register is more accurate than the
1043            position buffer.)
1044
1045    NB: If you get many "azx_get_response timeout" messages at
1046    loading, it's likely a problem of interrupts (e.g. ACPI irq
1047    routing).  Try to boot with options like "pci=noacpi".  Also, you
1048    can try "single_cmd=1" module option.  This will switch the
1049    communication method between HDA controller and codecs to the
1050    single immediate commands instead of CORB/RIRB.  Basically, the
1051    single command mode is provided only for BIOS, and you won't get
1052    unsolicited events, too.  But, at least, this works independently
1053    from the irq.  Remember this is a last resort, and should be
1054    avoided as much as possible...
1055    
1056    MORE NOTES ON "azx_get_response timeout" PROBLEMS:
1057    On some hardwares, you may need to add a proper probe_mask option
1058    to avoid the "azx_get_response timeout" problem above, instead.
1059    This occurs when the access to non-existing or non-working codec slot
1060    (likely a modem one) causes a stall of the communication via HD-audio
1061    bus.  You can see which codec slots are probed by enabling
1062    CONFIG_SND_DEBUG_DETECT, or simply from the file name of the codec
1063    proc files.  Then limit the slots to probe by probe_mask option.
1064    For example, probe_mask=1 means to probe only the first slot, and
1065    probe_mask=4 means only the third slot.
1066
1067    The power-management is supported.
1068
1069  Module snd-hdsp
1070  ---------------
1071
1072    Module for RME Hammerfall DSP audio interface(s)
1073
1074    This module supports multiple cards.
1075
1076    Note: The firmware data can be automatically loaded via hotplug
1077          when CONFIG_FW_LOADER is set.  Otherwise, you need to load
1078          the firmware via hdsploader utility included in alsa-tools
1079          package.
1080          The firmware data is found in alsa-firmware package.
1081
1082    Note: snd-page-alloc module does the job which snd-hammerfall-mem
1083          module did formerly.  It will allocate the buffers in advance
1084          when any HDSP cards are found.  To make the buffer
1085          allocation sure, load snd-page-alloc module in the early
1086          stage of boot sequence.  See "Early Buffer Allocation"
1087          section.
1088
1089  Module snd-hdspm
1090  ----------------
1091
1092    Module for RME HDSP MADI board.
1093
1094    precise_ptr         - Enable precise pointer, or disable.
1095    line_outs_monitor   - Send playback streams to analog outs by default.
1096    enable_monitor      - Enable Analog Out on Channel 63/64 by default.
1097
1098    See hdspm.txt for details.
1099
1100  Module snd-hifier
1101  -----------------
1102
1103    Module for the MediaTek/TempoTec HiFier Fantasia sound card.
1104
1105    This module supports autoprobe and multiple cards.
1106
1107    Power management is _not_ supported.
1108
1109  Module snd-ice1712
1110  ------------------
1111
1112    Module for Envy24 (ICE1712) based PCI sound cards.
1113                        * MidiMan M Audio Delta 1010
1114                        * MidiMan M Audio Delta 1010LT
1115                        * MidiMan M Audio Delta DiO 2496
1116                        * MidiMan M Audio Delta 66
1117                        * MidiMan M Audio Delta 44
1118                        * MidiMan M Audio Delta 410
1119                        * MidiMan M Audio Audiophile 2496
1120                        * TerraTec EWS 88MT
1121                        * TerraTec EWS 88D
1122                        * TerraTec EWX 24/96
1123                        * TerraTec DMX 6Fire
1124                        * TerraTec Phase 88
1125                        * Hoontech SoundTrack DSP 24
1126                        * Hoontech SoundTrack DSP 24 Value
1127                        * Hoontech SoundTrack DSP 24 Media 7.1
1128                        * Event Electronics, EZ8
1129                        * Digigram VX442
1130                        * Lionstracs, Mediastaton
1131
1132    model       - Use the given board model, one of the following:
1133                  delta1010, dio2496, delta66, delta44, audiophile, delta410,
1134                  delta1010lt, vx442, ewx2496, ews88mt, ews88mt_new, ews88d,
1135                  dmx6fire, dsp24, dsp24_value, dsp24_71, ez8,
1136                  phase88, mediastation
1137    omni        - Omni I/O support for MidiMan M-Audio Delta44/66
1138    cs8427_timeout - reset timeout for the CS8427 chip (S/PDIF transceiver)
1139                     in msec resolution, default value is 500 (0.5 sec)
1140
1141    This module supports multiple cards and autoprobe. Note: The consumer part
1142    is not used with all Envy24 based cards (for example in the MidiMan Delta
1143    serie).
1144
1145    Note: The supported board is detected by reading EEPROM or PCI
1146          SSID (if EEPROM isn't available).  You can override the
1147          model by passing "model" module option in case that the
1148          driver isn't configured properly or you want to try another
1149          type for testing.
1150
1151  Module snd-ice1724
1152  ------------------
1153
1154    Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards.
1155                        * MidiMan M Audio Revolution 5.1
1156                        * MidiMan M Audio Revolution 7.1
1157                        * MidiMan M Audio Audiophile 192
1158                        * AMP Ltd AUDIO2000
1159                        * TerraTec Aureon 5.1 Sky
1160                        * TerraTec Aureon 7.1 Space
1161                        * TerraTec Aureon 7.1 Universe
1162                        * TerraTec Phase 22
1163                        * TerraTec Phase 28
1164                        * AudioTrak Prodigy 7.1
1165                        * AudioTrak Prodigy 7.1LT
1166                        * AudioTrak Prodigy 192
1167                        * Pontis MS300
1168                        * Albatron K8X800 Pro II 
1169                        * Chaintech ZNF3-150
1170                        * Chaintech ZNF3-250
1171                        * Chaintech 9CJS
1172                        * Chaintech AV-710
1173                        * Shuttle SN25P
1174                        * Onkyo SE-90PCI
1175                        * Onkyo SE-200PCI
1176
1177    model       - Use the given board model, one of the following:
1178                  revo51, revo71, amp2000, prodigy71, prodigy71lt,
1179                  prodigy192, aureon51, aureon71, universe, ap192,
1180                  k8x800, phase22, phase28, ms300, av710, se200pci,
1181                  se90pci
1182
1183    This module supports multiple cards and autoprobe.
1184
1185    Note: The supported board is detected by reading EEPROM or PCI
1186          SSID (if EEPROM isn't available).  You can override the
1187          model by passing "model" module option in case that the
1188          driver isn't configured properly or you want to try another
1189          type for testing.
1190
1191  Module snd-indigo
1192  -----------------
1193
1194    Module for Echoaudio Indigo
1195
1196    This module supports multiple cards.
1197    The driver requires the firmware loader support on kernel.
1198
1199  Module snd-indigodj
1200  -------------------
1201
1202    Module for Echoaudio Indigo DJ
1203
1204    This module supports multiple cards.
1205    The driver requires the firmware loader support on kernel.
1206
1207  Module snd-indigoio
1208  -------------------
1209
1210    Module for Echoaudio Indigo IO
1211
1212    This module supports multiple cards.
1213    The driver requires the firmware loader support on kernel.
1214
1215  Module snd-intel8x0
1216  -------------------
1217
1218    Module for AC'97 motherboards from Intel and compatibles.
1219                        * Intel i810/810E, i815, i820, i830, i84x, MX440
1220                                ICH5, ICH6, ICH7, ESB2
1221                        * SiS 7012 (SiS 735)
1222                        * NVidia NForce, NForce2, NForce3, MCP04, CK804
1223                                 CK8, CK8S, MCP501
1224                        * AMD AMD768, AMD8111
1225                        * ALi m5455
1226
1227    ac97_clock    - AC'97 codec clock base (0 = auto-detect)
1228    ac97_quirk    - AC'97 workaround for strange hardware
1229                    See "AC97 Quirk Option" section below.
1230    buggy_irq     - Enable workaround for buggy interrupts on some
1231                    motherboards (default yes on nForce chips,
1232                    otherwise off)
1233    buggy_semaphore - Enable workaround for hardwares with buggy
1234                    semaphores (e.g. on some ASUS laptops)
1235                    (default off)
1236    spdif_aclink  - Use S/PDIF over AC-link instead of direct connection
1237                    from the controller chip
1238                    (0 = off, 1 = on, -1 = default)
1239
1240    This module supports one chip and autoprobe.
1241
1242    Note: the latest driver supports auto-detection of chip clock.
1243    if you still encounter too fast playback, specify the clock
1244    explicitly via the module option "ac97_clock=41194".
1245
1246    Joystick/MIDI ports are not supported by this driver.  If your
1247    motherboard has these devices, use the ns558 or snd-mpu401
1248    modules, respectively.
1249
1250    The power-management is supported.
1251    
1252  Module snd-intel8x0m
1253  --------------------
1254
1255    Module for Intel ICH (i8x0) chipset MC97 modems.
1256                        * Intel i810/810E, i815, i820, i830, i84x, MX440
1257                                ICH5, ICH6, ICH7
1258                        * SiS 7013 (SiS 735)
1259                        * NVidia NForce, NForce2, NForce2s, NForce3
1260                        * AMD AMD8111
1261                        * ALi m5455
1262
1263    ac97_clock    - AC'97 codec clock base (0 = auto-detect)
1264
1265    This module supports one card and autoprobe.
1266
1267    Note: The default index value of this module is -2, i.e. the first
1268          slot is excluded.
1269
1270    The power-management is supported.
1271
1272  Module snd-interwave
1273  --------------------
1274
1275    Module for Gravis UltraSound PnP, Dynasonic 3-D/Pro, STB Sound Rage 32
1276    and other sound cards based on AMD InterWave (tm) chip.
1277  
1278    joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1279    midi        - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1280    pcm_voices  - reserved PCM voices for the synthesizer (default 2)
1281    effect      - 1 = InterWave effects enable (default 0);
1282                  requires 8 voices
1283    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
1284
1285    with isapnp=0, the following options are available:
1286
1287    port        - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1288    irq         - IRQ # for InterWave chip (3,5,9,11,12,15)
1289    dma1        - DMA # for InterWave chip (0,1,3,5,6,7)
1290    dma2        - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1291
1292    This module supports multiple cards, autoprobe and ISA PnP.
1293
1294  Module snd-interwave-stb
1295  ------------------------
1296
1297    Module for UltraSound 32-Pro (sound card from STB used by Compaq)
1298    and other sound cards based on AMD InterWave (tm) chip with TEA6330T
1299    circuit for extended control of bass, treble and master volume.
1300  
1301    joystick_dac - 0 to 31, (0.59V-4.52V or 0.389V-2.98V)
1302    midi        - 1 = MIDI UART enable, 0 = MIDI UART disable (default)
1303    pcm_voices  - reserved PCM voices for the synthesizer (default 2)
1304    effect      - 1 = InterWave effects enable (default 0);
1305                  requires 8 voices
1306    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
1307
1308    with isapnp=0, the following options are available:
1309
1310    port        - port # for InterWave chip (0x210,0x220,0x230,0x240,0x250,0x260)
1311    port_tc     - tone control (i2c bus) port # for TEA6330T chip (0x350,0x360,0x370,0x380)
1312    irq         - IRQ # for InterWave chip (3,5,9,11,12,15)
1313    dma1        - DMA # for InterWave chip (0,1,3,5,6,7)
1314    dma2        - DMA # for InterWave chip (0,1,3,5,6,7,-1=disable)
1315
1316    This module supports multiple cards, autoprobe and ISA PnP.
1317
1318  Module snd-korg1212
1319  -------------------
1320
1321    Module for Korg 1212 IO PCI card
1322
1323    This module supports multiple cards.
1324
1325  Module snd-layla20
1326  ------------------
1327
1328    Module for Echoaudio Layla20
1329
1330    This module supports multiple cards.
1331    The driver requires the firmware loader support on kernel.
1332
1333  Module snd-layla24
1334  ------------------
1335
1336    Module for Echoaudio Layla24
1337
1338    This module supports multiple cards.
1339    The driver requires the firmware loader support on kernel.
1340
1341  Module snd-maestro3
1342  -------------------
1343
1344    Module for Allegro/Maestro3 chips
1345
1346    external_amp     - enable external amp (enabled by default)
1347    amp_gpio         - GPIO pin number for external amp (0-15) or
1348                       -1 for default pin (8 for allegro, 1 for
1349                       others) 
1350
1351    This module supports autoprobe and multiple chips.
1352
1353    Note: the binding of amplifier is dependent on hardware.
1354    If there is no sound even though all channels are unmuted, try to
1355    specify other gpio connection via amp_gpio option. 
1356    For example, a Panasonic notebook might need "amp_gpio=0x0d"
1357    option.
1358
1359    The power-management is supported.
1360
1361  Module snd-mia
1362  ---------------
1363
1364    Module for Echoaudio Mia
1365
1366    This module supports multiple cards.
1367    The driver requires the firmware loader support on kernel.
1368
1369  Module snd-miro
1370  ---------------
1371
1372    Module for Miro soundcards: miroSOUND PCM 1 pro, 
1373                                miroSOUND PCM 12,
1374                                miroSOUND PCM 20 Radio.
1375
1376    port        - Port # (0x530,0x604,0xe80,0xf40)
1377    irq         - IRQ # (5,7,9,10,11)
1378    dma1        - 1st dma # (0,1,3)
1379    dma2        - 2nd dma # (0,1)
1380    mpu_port    - MPU-401 port # (0x300,0x310,0x320,0x330)
1381    mpu_irq     - MPU-401 irq # (5,7,9,10)
1382    fm_port     - FM Port # (0x388)
1383    wss         - enable WSS mode
1384    ide         - enable onboard ide support
1385
1386  Module snd-mixart
1387  -----------------
1388
1389    Module for Digigram miXart8 sound cards.
1390
1391    This module supports multiple cards.
1392    Note: One miXart8 board will be represented as 4 alsa cards.
1393          See MIXART.txt for details.
1394
1395    When the driver is compiled as a module and the hotplug firmware
1396    is supported, the firmware data is loaded via hotplug automatically.
1397    Install the necessary firmware files in alsa-firmware package.
1398    When no hotplug fw loader is available, you need to load the
1399    firmware via mixartloader utility in alsa-tools package.
1400
1401  Module snd-mona
1402  ---------------
1403
1404    Module for Echoaudio Mona
1405
1406    This module supports multiple cards.
1407    The driver requires the firmware loader support on kernel.
1408
1409  Module snd-mpu401
1410  -----------------
1411
1412    Module for MPU-401 UART devices.
1413
1414    port        - port number or -1 (disable)
1415    irq         - IRQ number or -1 (disable)
1416    pnp         - PnP detection - 0 = disable, 1 = enable (default)
1417
1418    This module supports multiple devices and PnP.
1419    
1420  Module snd-mtpav
1421  ----------------
1422
1423    Module for MOTU MidiTimePiece AV multiport MIDI (on the parallel
1424    port).
1425
1426    port        - I/O port # for MTPAV (0x378,0x278, default=0x378)
1427    irq         - IRQ # for MTPAV (7,5, default=7)
1428    hwports     - number of supported hardware ports, default=8.
1429    
1430    Module supports only 1 card.  This module has no enable option.
1431
1432  Module snd-mts64
1433  ----------------
1434
1435    Module for Ego Systems (ESI) Miditerminal 4140
1436
1437    This module supports multiple devices.
1438    Requires parport (CONFIG_PARPORT).
1439
1440  Module snd-nm256
1441  ----------------
1442
1443    Module for NeoMagic NM256AV/ZX chips
1444
1445    playback_bufsize - max playback frame size in kB (4-128kB)
1446    capture_bufsize  - max capture frame size in kB (4-128kB)
1447    force_ac97       - 0 or 1 (disabled by default)
1448    buffer_top       - specify buffer top address
1449    use_cache        - 0 or 1 (disabled by default)
1450    vaio_hack        - alias buffer_top=0x25a800
1451    reset_workaround - enable AC97 RESET workaround for some laptops
1452    reset_workaround2 - enable extended AC97 RESET workaround for some
1453                      other laptops
1454
1455    This module supports one chip and autoprobe.
1456
1457    The power-management is supported.
1458
1459    Note: on some notebooks the buffer address cannot be detected
1460    automatically, or causes hang-up during initialization.
1461    In such a case, specify the buffer top address explicitly via
1462    the buffer_top option.
1463    For example,
1464      Sony F250: buffer_top=0x25a800
1465      Sony F270: buffer_top=0x272800
1466    The driver supports only ac97 codec.  It's possible to force
1467    to initialize/use ac97 although it's not detected.  In such a
1468    case, use force_ac97=1 option - but *NO* guarantee whether it
1469    works!
1470
1471    Note: The NM256 chip can be linked internally with non-AC97
1472    codecs.  This driver supports only the AC97 codec, and won't work
1473    with machines with other (most likely CS423x or OPL3SAx) chips,
1474    even though the device is detected in lspci.  In such a case, try
1475    other drivers, e.g. snd-cs4232 or snd-opl3sa2.  Some has ISA-PnP
1476    but some doesn't have ISA PnP.  You'll need to specify isapnp=0
1477    and proper hardware parameters in the case without ISA PnP.
1478
1479    Note: some laptops need a workaround for AC97 RESET.  For the
1480    known hardware like Dell Latitude LS and Sony PCG-F305, this
1481    workaround is enabled automatically.  For other laptops with a
1482    hard freeze, you can try reset_workaround=1 option.
1483
1484    Note: Dell Latitude CSx laptops have another problem regarding
1485    AC97 RESET.  On these laptops, reset_workaround2 option is
1486    turned on as default.  This option is worth to try if the
1487    previous reset_workaround option doesn't help.
1488
1489    Note: This driver is really crappy.  It's a porting from the
1490    OSS driver, which is a result of black-magic reverse engineering.
1491    The detection of codec will fail if the driver is loaded *after*
1492    X-server as described above.  You might be able to force to load
1493    the module, but it may result in hang-up.   Hence, make sure that
1494    you load this module *before* X if you encounter this kind of
1495    problem.
1496
1497  Module snd-opl3sa2
1498  ------------------
1499
1500    Module for Yamaha OPL3-SA2/SA3 sound cards.
1501
1502    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
1503
1504    with isapnp=0, the following options are available:
1505
1506    port        - control port # for OPL3-SA chip (0x370)
1507    sb_port     - SB port # for OPL3-SA chip (0x220,0x240)
1508    wss_port    - WSS port # for OPL3-SA chip (0x530,0xe80,0xf40,0x604)
1509    midi_port   - port # for MPU-401 UART (0x300,0x330), -1 = disable
1510    fm_port     - FM port # for OPL3-SA chip (0x388), -1 = disable
1511    irq         - IRQ # for OPL3-SA chip (5,7,9,10)
1512    dma1        - first DMA # for Yamaha OPL3-SA chip (0,1,3)
1513    dma2        - second DMA # for Yamaha OPL3-SA chip (0,1,3), -1 = disable
1514    
1515    This module supports multiple cards and ISA PnP.  It does not support
1516    autoprobe (if ISA PnP is not used) thus all ports must be specified!!!
1517    
1518    The power-management is supported.
1519
1520  Module snd-opti92x-ad1848
1521  -------------------------
1522
1523    Module for sound cards based on OPTi 82c92x and Analog Devices AD1848 chips.
1524    Module works with OAK Mozart cards as well.
1525    
1526    isapnp    - ISA PnP detection - 0 = disable, 1 = enable (default)
1527
1528    with isapnp=0, the following options are available:
1529
1530    port      - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1531    mpu_port  - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1532    fm_port   - port # for OPL3 device (0x388)
1533    irq       - IRQ # for WSS chip (5,7,9,10,11)
1534    mpu_irq   - IRQ # for MPU-401 UART (5,7,9,10)
1535    dma1      - first DMA # for WSS chip (0,1,3)
1536
1537    This module supports only one card, autoprobe and PnP.
1538
1539  Module snd-opti92x-cs4231
1540  -------------------------
1541
1542    Module for sound cards based on OPTi 82c92x and Crystal CS4231 chips.
1543    
1544    isapnp    - ISA PnP detection - 0 = disable, 1 = enable (default)
1545
1546    with isapnp=0, the following options are available:
1547
1548    port      - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1549    mpu_port  - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1550    fm_port   - port # for OPL3 device (0x388)
1551    irq       - IRQ # for WSS chip (5,7,9,10,11)
1552    mpu_irq   - IRQ # for MPU-401 UART (5,7,9,10)
1553    dma1      - first DMA # for WSS chip (0,1,3)
1554    dma2      - second DMA # for WSS chip (0,1,3)
1555
1556    This module supports only one card, autoprobe and PnP.
1557
1558  Module snd-opti93x
1559  ------------------
1560
1561    Module for sound cards based on OPTi 82c93x chips.
1562    
1563    isapnp    - ISA PnP detection - 0 = disable, 1 = enable (default)
1564
1565    with isapnp=0, the following options are available:
1566
1567    port      - port # for WSS chip (0x530,0xe80,0xf40,0x604)
1568    mpu_port  - port # for MPU-401 UART (0x300,0x310,0x320,0x330)
1569    fm_port   - port # for OPL3 device (0x388)
1570    irq       - IRQ # for WSS chip (5,7,9,10,11)
1571    mpu_irq   - IRQ # for MPU-401 UART (5,7,9,10)
1572    dma1      - first DMA # for WSS chip (0,1,3)
1573    dma2      - second DMA # for WSS chip (0,1,3)
1574
1575    This module supports only one card, autoprobe and PnP.
1576
1577  Module snd-oxygen
1578  -----------------
1579
1580    Module for sound cards based on the C-Media CMI8788 chip:
1581    * Asound A-8788
1582    * AuzenTech X-Meridian
1583    * Bgears b-Enspirer
1584    * Club3D Theatron DTS
1585    * HT-Omega Claro
1586    * Razer Barracuda AC-1
1587    * Sondigo Inferno
1588
1589    This module supports autoprobe and multiple cards.
1590
1591    Power management is _not_ supported.
1592
1593  Module snd-pcxhr
1594  ----------------
1595
1596    Module for Digigram PCXHR boards
1597
1598    This module supports multiple cards.
1599
1600  Module snd-portman2x4
1601  ---------------------
1602
1603    Module for Midiman Portman 2x4 parallel port MIDI interface
1604
1605    This module supports multiple cards.
1606
1607  Module snd-powermac (on ppc only)
1608  ---------------------------------
1609
1610    Module for PowerMac, iMac and iBook on-board soundchips
1611
1612    enable_beep     - enable beep using PCM (enabled as default)
1613
1614    Module supports autoprobe a chip.
1615
1616    Note: the driver may have problems regarding endianess.
1617
1618    The power-management is supported.
1619
1620  Module snd-pxa2xx-ac97 (on arm only)
1621  ------------------------------------
1622
1623    Module for AC97 driver for the Intel PXA2xx chip
1624
1625    For ARM architecture only.
1626
1627    The power-management is supported.
1628
1629  Module snd-riptide
1630  ------------------
1631
1632    Module for Conexant Riptide chip
1633
1634      joystick_port     - Joystick port # (default: 0x200)
1635      mpu_port          - MPU401 port # (default: 0x330)
1636      opl3_port         - OPL3 port # (default: 0x388)
1637
1638    This module supports multiple cards.
1639    The driver requires the firmware loader support on kernel.
1640    You need to install the firmware file "riptide.hex" to the standard
1641    firmware path (e.g. /lib/firmware).
1642
1643  Module snd-rme32
1644  ----------------
1645
1646    Module for RME Digi32, Digi32 Pro and Digi32/8 (Sek'd Prodif32, 
1647    Prodif96 and Prodif Gold) sound cards.
1648
1649    This module supports multiple cards.
1650
1651  Module snd-rme96
1652  ----------------
1653
1654    Module for RME Digi96, Digi96/8 and Digi96/8 PRO/PAD/PST sound cards.
1655
1656    This module supports multiple cards.
1657
1658  Module snd-rme9652
1659  ------------------
1660
1661    Module for RME Digi9652 (Hammerfall, Hammerfall-Light) sound cards.
1662
1663    precise_ptr - Enable precise pointer (doesn't work reliably).
1664                  (default = 0)
1665
1666    This module supports multiple cards.
1667
1668    Note: snd-page-alloc module does the job which snd-hammerfall-mem
1669          module did formerly.  It will allocate the buffers in advance
1670          when any RME9652 cards are found.  To make the buffer
1671          allocation sure, load snd-page-alloc module in the early
1672          stage of boot sequence.  See "Early Buffer Allocation"
1673          section.
1674
1675  Module snd-sa11xx-uda1341 (on arm only)
1676  ---------------------------------------
1677
1678    Module for Philips UDA1341TS on Compaq iPAQ H3600 sound card.
1679
1680    Module supports only one card.
1681    Module has no enable and index options.
1682
1683    The power-management is supported.
1684
1685  Module snd-sb8
1686  --------------
1687
1688    Module for 8-bit SoundBlaster cards: SoundBlaster 1.0,
1689                                         SoundBlaster 2.0,
1690                                         SoundBlaster Pro
1691
1692    port        - port # for SB DSP chip (0x220,0x240,0x260)
1693    irq         - IRQ # for SB DSP chip (5,7,9,10)
1694    dma8        - DMA # for SB DSP chip (1,3)
1695
1696    This module supports multiple cards and autoprobe.
1697    
1698    The power-management is supported.
1699
1700  Module snd-sb16 and snd-sbawe
1701  -----------------------------
1702
1703    Module for 16-bit SoundBlaster cards: SoundBlaster 16 (PnP),
1704                                          SoundBlaster AWE 32 (PnP),
1705                                          SoundBlaster AWE 64 PnP
1706
1707    mic_agc     - Mic Auto-Gain-Control - 0 = disable, 1 = enable (default)
1708    csp         - ASP/CSP chip support - 0 = disable (default), 1 = enable
1709    isapnp      - ISA PnP detection - 0 = disable, 1 = enable (default)
1710
1711    with isapnp=0, the following options are available:
1712
1713    port        - port # for SB DSP 4.x chip (0x220,0x240,0x260)
1714    mpu_port    - port # for MPU-401 UART (0x300,0x330), -1 = disable
1715    awe_port    - base port # for EMU8000 synthesizer (0x620,0x640,0x660)
1716                   (snd-sbawe module only)
1717    irq         - IRQ # for SB DSP 4.x chip (5,7,9,10)
1718    dma8        - 8-bit DMA # for SB DSP 4.x chip (0,1,3)
1719    dma16       - 16-bit DMA # for SB DSP 4.x chip (5,6,7)
1720    
1721    This module supports multiple cards, autoprobe and ISA PnP.
1722
1723    Note: To use Vibra16X cards in 16-bit half duplex mode, you must
1724          disable 16bit DMA with dma16 = -1 module parameter.
1725          Also, all Sound Blaster 16 type cards can operate in 16-bit
1726          half duplex mode through 8-bit DMA channel by disabling their
1727          16-bit DMA channel.
1728    
1729    The power-management is supported.
1730
1731  Module snd-sc6000
1732  -----------------
1733
1734    Module for Gallant SC-6000 soundcard.
1735
1736    port        - Port # (0x220 or 0x240)
1737    mss_port    - MSS Port # (0x530 or 0xe80)
1738    irq         - IRQ # (5,7,9,10,11)
1739    mpu_irq     - MPU-401 IRQ # (5,7,9,10) ,0 - no MPU-401 irq
1740    dma         - DMA # (1,3,0)
1741
1742    This module supports multiple cards.
1743
1744    This card is also known as Audio Excel DSP 16 or Zoltrix AV302.
1745
1746  Module snd-sgalaxy
1747  ------------------
1748
1749    Module for Aztech Sound Galaxy sound card.
1750
1751    sbport      - Port # for SB16 interface (0x220,0x240)
1752    wssport     - Port # for WSS interface (0x530,0xe80,0xf40,0x604)
1753    irq         - IRQ # (7,9,10,11)
1754    dma1        - DMA #
1755
1756    This module supports multiple cards.
1757
1758    The power-management is supported.
1759
1760  Module snd-sscape
1761  -----------------
1762
1763    Module for ENSONIQ SoundScape PnP cards.
1764
1765    port        - Port # (PnP setup)
1766    wss_port    - WSS Port # (PnP setup)
1767    irq         - IRQ # (PnP setup)
1768    mpu_irq     - MPU-401 IRQ # (PnP setup)
1769    dma         - DMA # (PnP setup)
1770    dma2        - 2nd DMA # (PnP setup, -1 to disable)
1771
1772    This module supports multiple cards.  ISA PnP must be enabled.
1773    You need sscape_ctl tool in alsa-tools package for loading
1774    the microcode.
1775
1776  Module snd-sun-amd7930 (on sparc only)
1777  --------------------------------------
1778
1779    Module for AMD7930 sound chips found on Sparcs.
1780
1781    This module supports multiple cards.
1782
1783  Module snd-sun-cs4231 (on sparc only)
1784  -------------------------------------
1785
1786    Module for CS4231 sound chips found on Sparcs.
1787
1788    This module supports multiple cards.
1789
1790  Module snd-sun-dbri (on sparc only)
1791  -----------------------------------
1792
1793    Module for DBRI sound chips found on Sparcs.
1794
1795    This module supports multiple cards.
1796
1797  Module snd-wavefront
1798  --------------------
1799
1800    Module for Turtle Beach Maui, Tropez and Tropez+ sound cards.
1801
1802    use_cs4232_midi - Use CS4232 MPU-401 interface
1803                      (inaccessibly located inside your computer)
1804    isapnp          - ISA PnP detection - 0 = disable, 1 = enable (default)
1805
1806    with isapnp=0, the following options are available:
1807
1808    cs4232_pcm_port - Port # for CS4232 PCM interface.
1809    cs4232_pcm_irq  - IRQ # for CS4232 PCM interface (5,7,9,11,12,15).
1810    cs4232_mpu_port - Port # for CS4232 MPU-401 interface.
1811    cs4232_mpu_irq  - IRQ # for CS4232 MPU-401 interface (9,11,12,15).
1812    ics2115_port    - Port # for ICS2115
1813    ics2115_irq     - IRQ # for ICS2115
1814    fm_port         - FM OPL-3 Port #
1815    dma1            - DMA1 # for CS4232 PCM interface.
1816    dma2            - DMA2 # for CS4232 PCM interface.
1817
1818    The below are options for wavefront_synth features:
1819    wf_raw          - Assume that we need to boot the OS (default:no)
1820        If yes, then during driver loading, the state of the board is
1821        ignored, and we reset the board and load the firmware anyway.
1822    fx_raw          - Assume that the FX process needs help (default:yes)
1823        If false, we'll leave the FX processor in whatever state it is
1824        when the driver is loaded.  The default is to download the
1825        microprogram and associated coefficients to set it up for
1826        "default" operation, whatever that means.
1827    debug_default   - Debug parameters for card initialization
1828    wait_usecs      - How long to wait without sleeping, usecs
1829                      (default:150)
1830        This magic number seems to give pretty optimal throughput
1831        based on my limited experimentation. 
1832        If you want to play around with it and find a better value, be
1833        my guest. Remember, the idea is to get a number that causes us
1834        to just busy wait for as many WaveFront commands as possible,
1835        without coming up with a number so large that we hog the whole
1836        CPU. 
1837        Specifically, with this number, out of about 134,000 status
1838        waits, only about 250 result in a sleep. 
1839    sleep_interval  - How long to sleep when waiting for reply
1840                      (default: 100)
1841    sleep_tries     - How many times to try sleeping during a wait
1842                      (default: 50)
1843    ospath          - Pathname to processed ICS2115 OS firmware
1844                      (default:wavefront.os)
1845        The path name of the ISC2115 OS firmware.  In the recent
1846        version, it's handled via firmware loader framework, so it
1847        must be installed in the proper path, typically,
1848        /lib/firmware.
1849    reset_time      - How long to wait for a reset to take effect
1850                      (default:2)
1851    ramcheck_time   - How many seconds to wait for the RAM test
1852                      (default:20)
1853    osrun_time      - How many seconds to wait for the ICS2115 OS
1854                      (default:10)
1855
1856    This module supports multiple cards and ISA PnP.
1857
1858    Note: the firmware file "wavefront.os" was located in the earlier
1859          version in /etc.  Now it's loaded via firmware loader, and
1860          must be in the proper firmware path, such as /lib/firmware.
1861          Copy (or symlink) the file appropriately if you get an error
1862          regarding firmware downloading after upgrading the kernel.
1863
1864  Module snd-sonicvibes
1865  ---------------------
1866
1867    Module for S3 SonicVibes PCI sound cards.
1868                        * PINE Schubert 32 PCI
1869
1870    reverb    - Reverb Enable - 1 = enable, 0 = disable (default)
1871                  - SoundCard must have onboard SRAM for this.
1872    mge       - Mic Gain Enable - 1 = enable, 0 = disable (default)
1873    
1874    This module supports multiple cards and autoprobe.
1875
1876  Module snd-serial-u16550
1877  ------------------------
1878
1879    Module for UART16550A serial MIDI ports.
1880
1881    port        - port # for UART16550A chip
1882    irq         - IRQ # for UART16550A chip, -1 = poll mode
1883    speed       - speed in bauds (9600,19200,38400,57600,115200)
1884                  38400 = default
1885    base        - base for divisor in bauds (57600,115200,230400,460800)
1886                  115200 = default
1887    outs        - number of MIDI ports in a serial port (1-4)
1888                  1 = default
1889    adaptor     - Type of adaptor.
1890                  0 = Soundcanvas, 1 = MS-124T, 2 = MS-124W S/A,
1891                  3 = MS-124W M/B, 4 = Generic
1892    
1893    This module supports multiple cards. This module does not support autoprobe
1894    thus the main port must be specified!!! Other options are optional.
1895
1896  Module snd-trident
1897  ------------------
1898
1899    Module for Trident 4DWave DX/NX sound cards.
1900                        * Best Union  Miss Melody 4DWave PCI
1901                        * HIS  4DWave PCI
1902                        * Warpspeed  ONSpeed 4DWave PCI
1903                        * AzTech  PCI 64-Q3D
1904                        * Addonics  SV 750
1905                        * CHIC  True Sound 4Dwave
1906                        * Shark  Predator4D-PCI
1907                        * Jaton  SonicWave 4D
1908
1909    pcm_channels   - max channels (voices) reserved for PCM
1910    wavetable_size - max wavetable size in kB (4-?kb)
1911
1912    This module supports multiple cards and autoprobe.
1913
1914    The power-management is supported.
1915
1916  Module snd-usb-audio
1917  --------------------
1918
1919    Module for USB audio and USB MIDI devices.
1920
1921    vid             - Vendor ID for the device (optional)
1922    pid             - Product ID for the device (optional)
1923    device_setup    - Device specific magic number (optional)
1924                    - Influence depends on the device
1925                    - Default: 0x0000 
1926
1927    This module supports multiple devices, autoprobe and hotplugging.
1928
1929  Module snd-usb-caiaq
1930  --------------------
1931
1932    Module for caiaq UB audio interfaces,
1933            * Native Instruments RigKontrol2
1934            * Native Instruments Kore Controller
1935            * Native Instruments Audio Kontrol 1
1936            * Native Instruments Audio 8 DJ
1937
1938    This module supports multiple devices, autoprobe and hotplugging.
1939
1940  Module snd-usb-usx2y
1941  --------------------
1942
1943    Module for Tascam USB US-122, US-224 and US-428 devices.
1944
1945    This module supports multiple devices, autoprobe and hotplugging.
1946
1947    Note: you need to load the firmware via usx2yloader utility included
1948          in alsa-tools and alsa-firmware packages.
1949
1950  Module snd-via82xx
1951  ------------------
1952
1953    Module for AC'97 motherboards based on VIA 82C686A/686B, 8233,
1954    8233A, 8233C, 8235, 8237 (south) bridge.
1955
1956    mpu_port    - 0x300,0x310,0x320,0x330, otherwise obtain BIOS setup
1957                  [VIA686A/686B only]
1958    joystick    - Enable joystick (default off) [VIA686A/686B only]
1959    ac97_clock  - AC'97 codec clock base (default 48000Hz)
1960    dxs_support - support DXS channels,
1961                  0 = auto (default), 1 = enable, 2 = disable,
1962                  3 = 48k only, 4 = no VRA, 5 = enable any sample
1963                  rate and different sample rates on different
1964                  channels
1965                  [VIA8233/C, 8235, 8237 only]
1966    ac97_quirk  - AC'97 workaround for strange hardware
1967                  See "AC97 Quirk Option" section below.
1968
1969    This module supports one chip and autoprobe.
1970
1971    Note: on some SMP motherboards like MSI 694D the interrupts might
1972          not be generated properly.  In such a case, please try to
1973          set the SMP (or MPS) version on BIOS to 1.1 instead of
1974          default value 1.4.  Then the interrupt number will be
1975          assigned under 15. You might also upgrade your BIOS.
1976    
1977    Note: VIA8233/5/7 (not VIA8233A) can support DXS (direct sound)
1978          channels as the first PCM.  On these channels, up to 4
1979          streams can be played at the same time, and the controller
1980          can perform sample rate conversion with separate rates for
1981          each channel.
1982          As default (dxs_support = 0), 48k fixed rate is chosen
1983          except for the known devices since the output is often
1984          noisy except for 48k on some mother boards due to the
1985          bug of BIOS.
1986          Please try once dxs_support=5 and if it works on other
1987          sample rates (e.g. 44.1kHz of mp3 playback), please let us
1988          know the PCI subsystem vendor/device id's (output of
1989          "lspci -nv").
1990          If dxs_support=5 does not work, try dxs_support=4; if it
1991          doesn't work too, try dxs_support=1.  (dxs_support=1 is
1992          usually for old motherboards.  The correct implemented
1993          board should work with 4 or 5.)  If it still doesn't
1994          work and the default setting is ok, dxs_support=3 is the
1995          right choice.  If the default setting doesn't work at all,
1996          try dxs_support=2 to disable the DXS channels.
1997          In any cases, please let us know the result and the
1998          subsystem vendor/device ids.  See "Links and Addresses"
1999          below.
2000
2001    Note: for the MPU401 on VIA823x, use snd-mpu401 driver
2002          additionally.  The mpu_port option is for VIA686 chips only.
2003
2004    The power-management is supported.
2005
2006  Module snd-via82xx-modem
2007  ------------------------
2008
2009    Module for VIA82xx AC97 modem
2010
2011    ac97_clock  - AC'97 codec clock base (default 48000Hz)
2012
2013    This module supports one card and autoprobe.
2014
2015    Note: The default index value of this module is -2, i.e. the first
2016          slot is excluded.
2017
2018    The power-management is supported.
2019
2020  Module snd-virmidi
2021  ------------------
2022
2023    Module for virtual rawmidi devices.
2024    This module creates virtual rawmidi devices which communicate
2025    to the corresponding ALSA sequencer ports.
2026
2027    midi_devs   - MIDI devices # (1-4, default=4)
2028    
2029    This module supports multiple cards.
2030
2031  Module snd-virtuoso
2032  -------------------
2033
2034    Module for sound cards based on the Asus AV200 chip, i.e.,
2035    Xonar D2 and Xonar D2X.
2036
2037    This module supports autoprobe and multiple cards.
2038
2039    Power management is _not_ supported.
2040
2041  Module snd-vx222
2042  ----------------
2043
2044    Module for Digigram VX-Pocket VX222, V222 v2 and Mic cards.
2045
2046    mic         - Enable Microphone on V222 Mic (NYI)
2047    ibl         - Capture IBL size. (default = 0, minimum size)
2048
2049    This module supports multiple cards.
2050
2051    When the driver is compiled as a module and the hotplug firmware
2052    is supported, the firmware data is loaded via hotplug automatically.
2053    Install the necessary firmware files in alsa-firmware package.
2054    When no hotplug fw loader is available, you need to load the
2055    firmware via vxloader utility in alsa-tools package.  To invoke
2056    vxloader automatically, add the following to /etc/modprobe.conf
2057
2058        install snd-vx222 /sbin/modprobe --first-time -i snd-vx222 && /usr/bin/vxloader
2059
2060    (for 2.2/2.4 kernels, add "post-install /usr/bin/vxloader" to
2061     /etc/modules.conf, instead.)
2062    IBL size defines the interrupts period for PCM.  The smaller size
2063    gives smaller latency but leads to more CPU consumption, too.
2064    The size is usually aligned to 126.  As default (=0), the smallest
2065    size is chosen.  The possible IBL values can be found in
2066    /proc/asound/cardX/vx-status proc file.
2067
2068    The power-management is supported.
2069
2070  Module snd-vxpocket
2071  -------------------
2072
2073    Module for Digigram VX-Pocket VX2 and 440 PCMCIA cards.
2074
2075    ibl      - Capture IBL size. (default = 0, minimum size)
2076
2077    This module supports multiple cards.  The module is compiled only when
2078    PCMCIA is supported on kernel.
2079
2080    With the older 2.6.x kernel, to activate the driver via the card
2081    manager, you'll need to set up /etc/pcmcia/vxpocket.conf.  See the
2082    sound/pcmcia/vx/vxpocket.c.  2.6.13 or later kernel requires no
2083    longer require a config file.
2084
2085    When the driver is compiled as a module and the hotplug firmware
2086    is supported, the firmware data is loaded via hotplug automatically.
2087    Install the necessary firmware files in alsa-firmware package.
2088    When no hotplug fw loader is available, you need to load the
2089    firmware via vxloader utility in alsa-tools package.
2090
2091    About capture IBL, see the description of snd-vx222 module.
2092
2093    Note: snd-vxp440 driver is merged to snd-vxpocket driver since
2094           ALSA 1.0.10.
2095
2096    The power-management is supported.
2097
2098  Module snd-ymfpci
2099  -----------------
2100
2101    Module for Yamaha PCI chips (YMF72x, YMF74x & YMF75x).
2102
2103    mpu_port      - 0x300,0x330,0x332,0x334, 0 (disable) by default,
2104                    1 (auto-detect for YMF744/754 only)
2105    fm_port       - 0x388,0x398,0x3a0,0x3a8, 0 (disable) by default
2106                    1 (auto-detect for YMF744/754 only)
2107    joystick_port - 0x201,0x202,0x204,0x205, 0 (disable) by default,
2108                    1 (auto-detect)
2109    rear_switch   - enable shared rear/line-in switch (bool)
2110
2111    This module supports autoprobe and multiple chips.
2112
2113    The power-management is supported.
2114
2115  Module snd-pdaudiocf
2116  --------------------
2117
2118    Module for Sound Core PDAudioCF sound card.
2119
2120    The power-management is supported.
2121
2122
2123AC97 Quirk Option
2124=================
2125
2126The ac97_quirk option is used to enable/override the workaround for
2127specific devices on drivers for on-board AC'97 controllers like
2128snd-intel8x0.  Some hardware have swapped output pins between Master
2129and Headphone, or Surround (thanks to confusion of AC'97
2130specifications from version to version :-)
2131
2132The driver provides the auto-detection of known problematic devices,
2133but some might be unknown or wrongly detected.  In such a case, pass
2134the proper value with this option.
2135
2136The following strings are accepted:
2137    - default   Don't override the default setting
2138    - none      Disable the quirk
2139    - hp_only   Bind Master and Headphone controls as a single control
2140    - swap_hp   Swap headphone and master controls
2141    - swap_surround  Swap master and surround controls
2142    - ad_sharing  For AD1985, turn on OMS bit and use headphone
2143    - alc_jack  For ALC65x, turn on the jack sense mode
2144    - inv_eapd  Inverted EAPD implementation
2145    - mute_led  Bind EAPD bit for turning on/off mute LED
2146
2147For backward compatibility, the corresponding integer value -1, 0,
2148... are  accepted, too.
2149
2150For example, if "Master" volume control has no effect on your device
2151but only "Headphone" does, pass ac97_quirk=hp_only module option.
2152
2153
2154Configuring Non-ISAPNP Cards
2155============================
2156
2157When the kernel is configured with ISA-PnP support, the modules
2158supporting the isapnp cards will have module options "isapnp".
2159If this option is set, *only* the ISA-PnP devices will be probed.
2160For probing the non ISA-PnP cards, you have to pass "isapnp=0" option
2161together with the proper i/o and irq configuration.
2162
2163When the kernel is configured without ISA-PnP support, isapnp option
2164will be not built in.
2165
2166
2167Module Autoloading Support
2168==========================
2169
2170The ALSA drivers can be loaded automatically on demand by defining
2171module aliases.  The string 'snd-card-%1' is requested for ALSA native
2172devices where %i is sound card number from zero to seven.
2173
2174To auto-load an ALSA driver for OSS services, define the string
2175'sound-slot-%i' where %i means the slot number for OSS, which
2176corresponds to the card index of ALSA.  Usually, define this
2177as the same card module.
2178
2179An example configuration for a single emu10k1 card is like below:
2180----- /etc/modprobe.conf
2181alias snd-card-0 snd-emu10k1
2182alias sound-slot-0 snd-emu10k1
2183----- /etc/modprobe.conf
2184
2185The available number of auto-loaded sound cards depends on the module
2186option "cards_limit" of snd module.  As default it's set to 1.
2187To enable the auto-loading of multiple cards, specify the number of
2188sound cards in that option.
2189
2190When multiple cards are available, it'd better to specify the index
2191number for each card via module option, too, so that the order of
2192cards is kept consistent.
2193
2194An example configuration for two sound cards is like below:
2195
2196----- /etc/modprobe.conf
2197# ALSA portion
2198options snd cards_limit=2
2199alias snd-card-0 snd-interwave
2200alias snd-card-1 snd-ens1371
2201options snd-interwave index=0
2202options snd-ens1371 index=1
2203# OSS/Free portion
2204alias sound-slot-0 snd-interwave
2205alias sound-slot-1 snd-ens1371
2206----- /etc/modprobe.conf
2207
2208In this example, the interwave card is always loaded as the first card
2209(index 0) and ens1371 as the second (index 1).
2210
2211Alternative (and new) way to fixate the slot assignment is to use
2212"slots" option of snd module.  In the case above, specify like the
2213following: 
2214
2215options snd slots=snd-interwave,snd-ens1371
2216
2217Then, the first slot (#0) is reserved for snd-interwave driver, and
2218the second (#1) for snd-ens1371.  You can omit index option in each
2219driver if slots option is used (although you can still have them at
2220the same time as long as they don't conflict).
2221
2222The slots option is especially useful for avoiding the possible
2223hot-plugging and the resultant slot conflict.  For example, in the
2224case above again, the first two slots are already reserved.  If any
2225other driver (e.g. snd-usb-audio) is loaded before snd-interwave or
2226snd-ens1371, it will be assigned to the third or later slot.
2227
2228
2229ALSA PCM devices to OSS devices mapping
2230=======================================
2231
2232/dev/snd/pcmC0D0[c|p]  -> /dev/audio0 (/dev/audio) -> minor 4
2233/dev/snd/pcmC0D0[c|p]  -> /dev/dsp0 (/dev/dsp)     -> minor 3
2234/dev/snd/pcmC0D1[c|p]  -> /dev/adsp0 (/dev/adsp)   -> minor 12
2235/dev/snd/pcmC1D0[c|p]  -> /dev/audio1              -> minor 4+16 = 20
2236/dev/snd/pcmC1D0[c|p]  -> /dev/dsp1                -> minor 3+16 = 19
2237/dev/snd/pcmC1D1[c|p]  -> /dev/adsp1               -> minor 12+16 = 28
2238/dev/snd/pcmC2D0[c|p]  -> /dev/audio2              -> minor 4+32 = 36
2239/dev/snd/pcmC2D0[c|p]  -> /dev/dsp2                -> minor 3+32 = 39
2240/dev/snd/pcmC2D1[c|p]  -> /dev/adsp2               -> minor 12+32 = 44
2241
2242The first number from /dev/snd/pcmC{X}D{Y}[c|p] expression means
2243sound card number and second means device number.  The ALSA devices
2244have either 'c' or 'p' suffix indicating the direction, capture and
2245playback, respectively.
2246
2247Please note that the device mapping above may be varied via the module
2248options of snd-pcm-oss module.
2249
2250
2251Proc interfaces (/proc/asound)
2252==============================
2253
2254/proc/asound/card#/pcm#[cp]/oss
2255-------------------------------
2256  String "erase" - erase all additional informations about OSS applications
2257  String "<app_name> <fragments> <fragment_size> [<options>]"
2258
2259   <app_name> - name of application with (higher priority) or without path
2260   <fragments> - number of fragments or zero if auto
2261   <fragment_size> - size of fragment in bytes or zero if auto
2262   <options> - optional parameters
2263          - disable   the application tries to open a pcm device for
2264                      this channel but does not want to use it.
2265                      (Cause a bug or mmap needs)
2266                      It's good for Quake etc...
2267          - direct    don't use plugins
2268          - block     force block mode (rvplayer)
2269          - non-block force non-block mode
2270          - whole-frag  write only whole fragments (optimization affecting
2271                        playback only)
2272          - no-silence  do not fill silence ahead to avoid clicks
2273          - buggy-ptr   Returns the whitespace blocks in GETOPTR ioctl
2274                        instead of filled blocks
2275
2276  Example: echo "x11amp 128 16384" > /proc/asound/card0/pcm0p/oss
2277           echo "squake 0 0 disable" > /proc/asound/card0/pcm0c/oss
2278           echo "rvplayer 0 0 block" > /proc/asound/card0/pcm0p/oss
2279
2280
2281Early Buffer Allocation
2282=======================
2283
2284Some drivers (e.g. hdsp) require the large contiguous buffers, and
2285sometimes it's too late to find such spaces when the driver module is
2286actually loaded due to memory fragmentation.  You can pre-allocate the
2287PCM buffers by loading snd-page-alloc module and write commands to its
2288proc file in prior, for example, in the early boot stage like
2289/etc/init.d/*.local scripts.
2290
2291Reading the proc file /proc/drivers/snd-page-alloc shows the current
2292usage of page allocation.  In writing, you can send the following
2293commands to the snd-page-alloc driver:
2294
2295  - add VENDOR DEVICE MASK SIZE BUFFERS
2296
2297    VENDOR and DEVICE are PCI vendor and device IDs.  They take
2298    integer numbers (0x prefix is needed for the hex).
2299    MASK is the PCI DMA mask.  Pass 0 if not restricted.
2300    SIZE is the size of each buffer to allocate.  You can pass
2301    k and m suffix for KB and MB.  The max number is 16MB.
2302    BUFFERS is the number of buffers to allocate.  It must be greater
2303    than 0.  The max number is 4.
2304
2305  - erase
2306
2307    This will erase the all pre-allocated buffers which are not in
2308    use.
2309
2310
2311Links and Addresses
2312===================
2313
2314  ALSA project homepage
2315       http://www.alsa-project.org
2316
2317  ALSA Bug Tracking System
2318       https://bugtrack.alsa-project.org/bugs/
2319
2320  ALSA Developers ML
2321       mailto:alsa-devel@alsa-project.org
2322
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