>Number:         37274
>Category:       kern
>Synopsis:       azalia codec mixers wont single step increment
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Nov 03 21:35:00 +0000 2007
>Originator:     Mark Davies
>Release:        NetBSD 4.99.27
>Organization:
Dept. of Comp. Sci., Victoria Uni. of Wellington, New Zealand.
>Environment:
	
	
System: NetBSD lap3.home.vuw.ac.nz 4.99.27 NetBSD 4.99.27 (MCS_LAPTOP) #17: Thu Aug  9 08:34:09 NZST 2007  mark@lap3.home.vuw.ac.nz:/local/SAVE/build.obj/local/src/src/sys/arch/i386/compile/MCS_LAPTOP i386
Architecture: i386
Machine: i386
>Description:
	With azalia based mixers trying to increase values by smaller than
	the "step" value has no effect.  eg.

	    icon# mixerctl -w inputs.dac++
	    inputs.dac: 123,123 -> 123,123
	    icon# mixerctl -w inputs.dac--
	    inputs.dac: 123,123 -> 115,115

	This is the same issue that is discussed in
	http://mail-index.netbsd.org/tech-kern/2004/12/12/0002.html and the
	surrounding thread and is fixed for ac97 mixers in the patch for
	PR pkg/18741.
	
>How-To-Repeat:
	
>Fix:
	don't know but probably involves doing something clever in 
	generic_mixer_to_device_value() or related functions.
	

>Unformatted: