#ifndef _LINUX_SOUND_H
  #define _LINUX_SOUND_H

  
  /*
   * 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) */

  #ifdef __KERNEL__

  /*
   *	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);

  #endif /* __KERNEL__ */

  
  #endif /* _LINUX_SOUND_H */