Marek,
so there are other devices connected to same host controller?
I was under the impression that you said you had no devices connected, when I
asked.
You may try to decrease the alternate setting in sn9c102_config.h:
#define SN9C102_ALTERNATE_SETTING 8
Note that the driver has been tested with SN9C102_ALTERNATE_SETTING = 8 only.
It's likely that you will not get any data with different values at high
resolutions, as the controller is configured for that value.
Best regards
Luca Risolia
On Monday 14 May 2007 12:36:01 Marek Brudka wrote:
> 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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