Hi,

The problem was that each webcam application reported :no space left on
device.

After some experiments I found out that camera works when
"Bus 002 Device 006: ID 1131:1001 Integrated System Solution Corp.
KY-BT100 Bluetooth Adapter"
is unplugged. It seems that this bluetooth adapter reserves too much
bandwidth.
Quite strange as bluetooth does not usually need too much bandwith.
What to do next ?

Best regards
Marek

Alan Stern wrote:

> On Sun, 13 May 2007, Marek Brudka wrote:
>
>   
>> Hi,
>>
>> I have a problem with my sn9c102 webcam. After some debugging with Luca
>> Ricolia (see below),
>>
>> Luca recognized that the problem comes from usb_submit_urb function, and
>> probably was introduced recently
>>     
>
> Um, what was the actual problem?  Is it the "Error -28" in your Subject 
> line?
>
> -28 is -ENOSPC (which explains the error message for your "cat" command).  
> It means the driver is trying to overcommit the available bandwidth.  If
> you build a kernel with CONFIG_USB_DEBUG turned on, you'll probably see
> some warning messages in the dmesg log when the error occurs.
>
> Alan Stern
>
>
>   


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