linux/include/linux/sound.h
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   1#ifndef _LINUX_SOUND_H
   2#define _LINUX_SOUND_H
   3
   4/*
   5 * Minor numbers for the sound driver.
   6 */
   7
   8#include <linux/fs.h>
   9
  10#define SND_DEV_CTL             0       /* Control port /dev/mixer */
  11#define SND_DEV_SEQ             1       /* Sequencer output /dev/sequencer (FM
  12                                                synthesizer and MIDI output) */
  13#define SND_DEV_MIDIN           2       /* Raw midi access */
  14#define SND_DEV_DSP             3       /* Digitized voice /dev/dsp */
  15#define SND_DEV_AUDIO           4       /* Sparc compatible /dev/audio */
  16#define SND_DEV_DSP16           5       /* Like /dev/dsp but 16 bits/sample */
  17/* #define SND_DEV_STATUS       6 */    /* /dev/sndstat (obsolete) */
  18#define SND_DEV_UNUSED          6
  19#define SND_DEV_AWFM            7       /* Reserved */
  20#define SND_DEV_SEQ2            8       /* /dev/sequencer, level 2 interface */
  21/* #define SND_DEV_SNDPROC      9 */    /* /dev/sndproc for programmable devices (not used) */
  22/* #define SND_DEV_DMMIDI       9 */
  23#define SND_DEV_SYNTH           9       /* Raw synth access /dev/synth (same as /dev/dmfm) */
  24#define SND_DEV_DMFM            10      /* Raw synth access /dev/dmfm */
  25#define SND_DEV_UNKNOWN11       11
  26#define SND_DEV_ADSP            12      /* Like /dev/dsp (obsolete) */
  27#define SND_DEV_AMIDI           13      /* Like /dev/midi (obsolete) */
  28#define SND_DEV_ADMMIDI         14      /* Like /dev/dmmidi (onsolete) */
  29
  30#ifdef __KERNEL__
  31/*
  32 *      Sound core interface functions
  33 */
  34 
  35struct device;
  36extern int register_sound_special(const struct file_operations *fops, int unit);
  37extern int register_sound_special_device(const struct file_operations *fops, int unit, struct device *dev);
  38extern int register_sound_mixer(const struct file_operations *fops, int dev);
  39extern int register_sound_midi(const struct file_operations *fops, int dev);
  40extern int register_sound_dsp(const struct file_operations *fops, int dev);
  41
  42extern void unregister_sound_special(int unit);
  43extern void unregister_sound_mixer(int unit);
  44extern void unregister_sound_midi(int unit);
  45extern void unregister_sound_dsp(int unit);
  46#endif /* __KERNEL__ */
  47
  48#endif /* _LINUX_SOUND_H */
  49
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