kern/152622: [pcm] uaudio recording problem

Hans Petter Selasky hselasky at
Sun Apr 10 07:01:32 UTC 2011

On Saturday 09 April 2011 15:30:18 Thierry Thomas wrote:
> The following reply was made to PR kern/152622; it has been noted by GNATS.
> From: Thierry Thomas <thierry at>
> To: FreeBSD-gnats-submit at
> Cc: bug-followup at, laddassm at
> Subject: Re: kern/152622: [pcm] uaudio recording problem
> Date: Sat, 9 Apr 2011 15:03:05 +0200
>  Hello,
>  Same problem here with a webcam Logitech C270: the image is fine with
>  webcamd / pwcview, but the microphone is ignored.
>  Some details, hoping that could help:


Compile kernel with "options USB_DEBUG".

Re-plug device after setting:

sysctl hw.usb.uaudio.debug=15

Upload dmesg.


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