Hi Alexandre,

On Wednesday 23 March 2011 15:43:11 Alexandre Felipe Muller de Souza wrote:
> Hello, I experienced some problems with Acer BisonCam builtin on
> Notebook. I tried to update packages to most updated (kernel, uvcdriver)
> but the problem occurs at the same way. When I use ucview application,
> sometimes it crashed when I try to initialize the cam. I found the
> device information as fully compatible at device list, but the name is
> different. When the problem occurs I have to remove and add again the
> module to work again.
> At terminal the application writes:
> 
> error: input/output error
> error: input/output error
> error: input/output error
> Aborted
> 
> The demsg output:
> uvcvideo: Failed to query (135) UVC control 3 (unit 5) : -110 (exp. 2).
> uvcvideo: Failed to query (135) UVC control 2 (unit 5) : -110 (exp. 2).
> uvcvideo: Failed to query (135) UVC control 2 (unit 5) : -110 (exp. 2).
> uvcvideo: Failed to query (135) UVC control 3 (unit 5) : -110 (exp. 2).
> uvcvideo: Failed to query (135) UVC control 7 (unit 5) : -110 (exp. 2).

Your camera times out when it receives those valid requests. This is probably 
caused by a camera firmware bug, leading to a camera crash. There's little 
that can be done on the host side. I'll mark the camera as potentially buggy 
in the list of supported devices.

-- 
Regards,

Laurent Pinchart
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