>Number:         1027
>Category:       kern
>Synopsis:       audio device doesn't call to set hardware recording gain correctly
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat May  6 22:35:01 1995
>Originator:     John Kohl
>Organization:
NetBSD Kernel Hackers `R` Us
>Release:        1.0A (-current)
>Environment:
	
System: NetBSD kolvir 1.0A NetBSD 1.0A (KOLVIR) #311: Thu May 4 21:37:13 EDT 1995 jtk@kolvir:/u1/NetBSD-current/src/sys/arch/i386/compile/KOLVIR i386


>Description:
The audio driver doesn't tag the mixer command to set recording gain
properly--it needs to set AUDIO_MIXER_VALUE.

>How-To-Repeat:
try setting the recording gain with ioctl(xx, AUDIO_SETINFO, &info).

>Fix:

*** audio.c.~1~	Sat May  6 06:10:13 1995
--- sys/dev/audio.c	Sun May  7 01:26:19 1995
***************
*** 1476,1487 ****
--- 1476,1489 ----
  	}
  	if (p->gain != ~0) {
  		ct.dev = hw->get_out_port(sc->hw_hdl);
+ 		ct.type = AUDIO_MIXER_VALUE;
  		ct.un.value.num_channels = 1;
  		ct.un.value.level[AUDIO_MIXER_LEVEL_MONO] = p->gain;
  		hw->set_port(sc->hw_hdl, &ct);
  	}
  	if (r->gain != ~0) {
  		ct.dev = hw->get_in_port(sc->hw_hdl);
+ 		ct.type = AUDIO_MIXER_VALUE;
  		ct.un.value.num_channels = 1;
  		ct.un.value.level[AUDIO_MIXER_LEVEL_MONO] = r->gain;
  		hw->set_port(sc->hw_hdl, &ct);

>Audit-Trail:
>Unformatted: