- Make the 'hwvol_mixer' and 'hwvol_step' variables be specific to a

  specific snd_mixer device rather than global across all mixers.
- Add per-mixer mute status and saved mute_level so that the mixer_hwmute()
  function can now toggle the mute state when the mute button is pressed.
- Create a dynamic sysctl tree hw.snd.pcmX when a pcm device is registered.
- Move the hw.snd.hwvol_* sysctl's to hw.snd.pcmX.hwvol_* so that they
  are now properly device-specific.  Eventually when the mixers become
  their own devices these sysctl's will move to live under a mixerX tree.
- Change the interface of the hwvol_mixer sysctl so that it reports the
  name of the current mixer device instead of the number and is settable
  with the name instead of the number.
- Add a new function mixer_hwinit() used to setup the dynamic sysctl's
  needed for the hwvol support that can be called by drivers that support
  hwvol.

Reviewed by:	cg

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/dev/sound/pcm/mixer.h b/sys/dev/sound/pcm/mixer.h
index b29cc14..f7ad35c 100644
--- a/sys/dev/sound/pcm/mixer.h
+++ b/sys/dev/sound/pcm/mixer.h
@@ -33,6 +33,7 @@ extern int mixer_ioctl(snddev_info *d, u_long cmd, caddr_t arg);
 extern int mixer_busy(snd_mixer *m, int busy);
 extern int mixer_isbusy(snd_mixer *m);
 
+int mixer_hwinit(device_t dev);
 void mixer_hwmute(device_t dev);
 void mixer_hwstep(device_t dev, int left_step, int right_step);