arch/um/include/hostaudio.h

   1 /*
   2  * Copyright (C) 2002 Steve Schmidtke
   3  * Licensed under the GPL
   4  */
   5
   6 #ifndef HOSTAUDIO_H
   7 #define HOSTAUDIO_H
   8
   9 #define HOSTAUDIO_DEV_DSP "/dev/sound/dsp"
  10 #define HOSTAUDIO_DEV_MIXER "/dev/sound/mixer"
  11
  12 struct hostaudio_state {
  13   int fd;
  14 };
  15
  16 struct hostmixer_state {
  17   int fd;
  18 };
  19
  20 /* UML user-side protoypes */
  21 extern ssize_t hostaudio_read_user(struct hostaudio_state *state, char *buffer,
  22                                    size_t count, loff_t *ppos);
  23 extern ssize_t hostaudio_write_user(struct hostaudio_state *state,
  24                                     const char *buffer, size_t count,
  25                                     loff_t *ppos);
  26 extern int hostaudio_ioctl_user(struct hostaudio_state *state,
  27                                 unsigned int cmd, unsigned long arg);
  28 extern int hostaudio_open_user(struct hostaudio_state *state, int r, int w,
  29                                char *dsp);
  30 extern int hostaudio_release_user(struct hostaudio_state *state);
  31 extern int hostmixer_ioctl_mixdev_user(struct hostmixer_state *state,
  32                                 unsigned int cmd, unsigned long arg);
  33 extern int hostmixer_open_mixdev_user(struct hostmixer_state *state, int r,
  34                                       int w, char *mixer);
  35 extern int hostmixer_release_mixdev_user(struct hostmixer_state *state);
  36
  37 #endif /* HOSTAUDIO_H */
  38
  39 /*
  40  * Overrides for Emacs so that we follow Linus's tabbing style.
  41  * Emacs will notice this stuff at the end of the file and automatically
  42  * adjust the settings for this buffer only.  This must remain at the end
  43  * of the file.
  44  * ---------------------------------------------------------------------------
  45  * Local variables:
  46  * c-file-style: "linux"
  47  * End:
  48  */