Hello all,

Here is a problem with a Logitech C270 webcam and its mic: Quite often when
I 'm on Skype (or Google talk) doing a video call, the mic suddenly goes
off, so the other side can't here me. I have to kill Skype from the command
line, unplug the camera, plug it back in and then load Skype again.
Sometimes I have to do this 2 or 3 times in a raw until the mic comes back
again. This happens only when I 'm doing video calls. When this happens I
see the following message when doing a dmesg:

*cannot set freq 24000 to ep 0x86*

I also see similar messages when the Linux kernel is loading:

*cannot set freq 24000 to ep 0x86
cannot set freq 32000 to ep 0x86
cannot set freq 48000 to ep 0x86*

I purchased this webcam 6 months ago (sorry for not mailing the list
earlier) and I noticed this behaviour from the very beginning I started
using it, so it's not something noticed with the latest Linux kernel. I 'm
using Debian Unstable with the Liquorix kernel, but it's the same with the
official Debian kernels as well. This has also been reported in Arch Linux.

I hope that the above information can help you to debug the problem. Please
do tell me if I can do anything more. Thank you in advance for any response.

Best regards,
George P.
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