kern/44279: Logitech C260

[jakllsch%kollasch.net@localhost]

>Number:         44279
>Category:       kern
>Synopsis:       Logitech C260 uaudio(4) non-functional
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 25 21:25:00 +0000 2010
>Originator:     Jonathan A. Kollasch
>Release:        NetBSD 5.1_RC1
>Organization:
        
>Environment:
        
        
System: NetBSD siwenna.kollasch.net 5.1_RC1 NetBSD 5.1_RC1 (SIWENNA) #35: Sat 
Dec 25 04:21:37 UTC 2010 
root%siwenna.kollasch.net@localhost:/local/siwenna/20100403/src/sys/arch/i386/compile/SIWENNA
 i386
Architecture: i386
Machine: i386
>Description:
The C260's audio class descriptors cause uaudio(4) to bail out at line 1897
of uaudio.c 1.119.  The descriptors show "acdp->wTotalLength" to be one less
than the actual length of the descriptor chain.

Additionally, after avoiding that sanity check, the quirk for the Roland SD-90
implemented at line 2630 causes the device to not provide any samples when
recording. The SAMPLING_FREQ_CONTROL request is apparently required for this
one-rate device to work.
>How-To-Repeat:
Plug a in Logitech C260, attempt to audiorecord(1) from its microphone.
>Fix:
...

>Unformatted: