root/include/linux/sound.h

INCLUDED FROM

/*
 * Minor numbers for the sound driver.
 */

#include <linux/fs.h>

#define SND_DEV_CTL             0       /* Control port /dev/mixer */
#define SND_DEV_SEQ             1       /* Sequencer output /dev/sequencer (FM
                                                synthesizer and MIDI output) */
#define SND_DEV_MIDIN           2       /* Raw midi access */
#define SND_DEV_DSP             3       /* Digitized voice /dev/dsp */
#define SND_DEV_AUDIO           4       /* Sparc compatible /dev/audio */
#define SND_DEV_DSP16           5       /* Like /dev/dsp but 16 bits/sample */
/* #define SND_DEV_STATUS       6 */    /* /dev/sndstat (obsolete) */
#define SND_DEV_UNUSED          6
#define SND_DEV_AWFM            7       /* Reserved */
#define SND_DEV_SEQ2            8       /* /dev/sequencer, level 2 interface */
/* #define SND_DEV_SNDPROC      9 */    /* /dev/sndproc for programmable devices (not used) */
/* #define SND_DEV_DMMIDI       9 */
#define SND_DEV_SYNTH           9       /* Raw synth access /dev/synth (same as /dev/dmfm) */
#define SND_DEV_DMFM            10      /* Raw synth access /dev/dmfm */
#define SND_DEV_UNKNOWN11       11
#define SND_DEV_ADSP            12      /* Like /dev/dsp (obsolete) */
#define SND_DEV_AMIDI           13      /* Like /dev/midi (obsolete) */
#define SND_DEV_ADMMIDI         14      /* Like /dev/dmmidi (onsolete) */

/*
 *      Sound core interface functions
 */
 
struct device;
extern int register_sound_special(const struct file_operations *fops, int unit);
extern int register_sound_special_device(const struct file_operations *fops, int unit, struct device *dev);
extern int register_sound_mixer(const struct file_operations *fops, int dev);
extern int register_sound_midi(const struct file_operations *fops, int dev);
extern int register_sound_dsp(const struct file_operations *fops, int dev);

extern void unregister_sound_special(int unit);
extern void unregister_sound_mixer(int unit);
extern void unregister_sound_midi(int unit);
extern void unregister_sound_dsp(int unit);