linux/arch/um/Kconfig.char
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   1menu "UML Character Devices"
   2
   3config STDERR_CONSOLE
   4        bool "stderr console"
   5        default y
   6        help
   7          console driver which dumps all printk messages to stderr.
   8
   9config STDIO_CONSOLE
  10        bool
  11        default y
  12
  13config SSL
  14        bool "Virtual serial line"
  15        help
  16          The User-Mode Linux environment allows you to create virtual serial
  17          lines on the UML that are usually made to show up on the host as
  18          ttys or ptys.
  19
  20          See <http://user-mode-linux.sourceforge.net/old/input.html> for more
  21          information and command line examples of how to use this facility.
  22
  23          Unless you have a specific reason for disabling this, say Y.
  24
  25config NULL_CHAN
  26        bool "null channel support"
  27        help
  28          This option enables support for attaching UML consoles and serial
  29          lines to a device similar to /dev/null.  Data written to it disappears
  30          and there is never any data to be read.
  31
  32config PORT_CHAN
  33        bool "port channel support"
  34        help
  35          This option enables support for attaching UML consoles and serial
  36          lines to host portals.  They may be accessed with 'telnet <host>
  37          <port number>'.  Any number of consoles and serial lines may be
  38          attached to a single portal, although what UML device you get when
  39          you telnet to that portal will be unpredictable.
  40          It is safe to say 'Y' here.
  41
  42config PTY_CHAN
  43        bool "pty channel support"
  44        help
  45          This option enables support for attaching UML consoles and serial
  46          lines to host pseudo-terminals.  Access to both traditional
  47          pseudo-terminals (/dev/pty*) and pts pseudo-terminals are controlled
  48          with this option.  The assignment of UML devices to host devices
  49          will be announced in the kernel message log.
  50          It is safe to say 'Y' here.
  51
  52config TTY_CHAN
  53        bool "tty channel support"
  54        help
  55          This option enables support for attaching UML consoles and serial
  56          lines to host terminals.  Access to both virtual consoles
  57          (/dev/tty*) and the slave side of pseudo-terminals (/dev/ttyp* and
  58          /dev/pts/*) are controlled by this option.
  59          It is safe to say 'Y' here.
  60
  61config XTERM_CHAN
  62        bool "xterm channel support"
  63        help
  64          This option enables support for attaching UML consoles and serial
  65          lines to xterms.  Each UML device so assigned will be brought up in
  66          its own xterm.
  67          It is safe to say 'Y' here.
  68
  69config NOCONFIG_CHAN
  70        bool
  71        default !(XTERM_CHAN && TTY_CHAN && PTY_CHAN && PORT_CHAN && NULL_CHAN)
  72
  73config CON_ZERO_CHAN
  74        string "Default main console channel initialization"
  75        default "fd:0,fd:1"
  76        help
  77          This is the string describing the channel to which the main console
  78          will be attached by default.  This value can be overridden from the
  79          command line.  The default value is "fd:0,fd:1", which attaches the
  80          main console to stdin and stdout.
  81          It is safe to leave this unchanged.
  82
  83config CON_CHAN
  84        string "Default console channel initialization"
  85        default "xterm"
  86        help
  87          This is the string describing the channel to which all consoles
  88          except the main console will be attached by default.  This value can
  89          be overridden from the command line.  The default value is "xterm",
  90          which brings them up in xterms.
  91          It is safe to leave this unchanged, although you may wish to change
  92          this if you expect the UML that you build to be run in environments
  93          which don't have X or xterm available.
  94
  95config SSL_CHAN
  96        string "Default serial line channel initialization"
  97        default "pty"
  98        help
  99          This is the string describing the channel to which the serial lines
 100          will be attached by default.  This value can be overridden from the
 101          command line.  The default value is "pty", which attaches them to
 102          traditional pseudo-terminals.
 103          It is safe to leave this unchanged, although you may wish to change
 104          this if you expect the UML that you build to be run in environments
 105          which don't have a set of /dev/pty* devices.
 106
 107config UML_SOUND
 108        tristate "Sound support"
 109        help
 110          This option enables UML sound support.  If enabled, it will pull in
 111          soundcore and the UML hostaudio relay, which acts as a intermediary
 112          between the host's dsp and mixer devices and the UML sound system.
 113          It is safe to say 'Y' here.
 114
 115config SOUND
 116        tristate
 117        default UML_SOUND
 118
 119config SOUND_OSS_CORE
 120        bool
 121        default UML_SOUND
 122
 123config HOSTAUDIO
 124        tristate
 125        default UML_SOUND
 126
 127endmenu
 128
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