Resending with the attachment zipped up. Luke
--- On Sun, 2/6/11, Luke X. <x.l...@ymail.com> wrote:
From: Luke X. <x.l...@ymail.com>
Subject: Re: [Linux-uvc-devel] Logitech C310 and MJPEG won't work - a kernel
bug?
To: linux-uvc-devel@lists.berlios.de, anau...@suse.de, "Oliver Neukum"
<oli...@neukum.org>
Date: Sunday, February 6, 2011, 3:22 PM
Yet I think I managed to make it work (it's not a module, but built directly
into the kernel).
Please find a trace file attached. A started monitoring, then ran "fswebcam -v"
and when it finished I killed usbmon sniffing. Did this on my 64bit box.
Thanks,
Luke
--- On Sun, 2/6/11, Oliver Neukum <oli...@neukum.org> wrote:
From: Oliver Neukum <oli...@neukum.org>
Subject: Re: [Linux-uvc-devel] Logitech C310 and MJPEG won't work - a kernel
bug?
To: linux-uvc-devel@lists.berlios.de, anau...@suse.de
Cc: "Luke X." <x.l...@ymail.com>
Date: Sunday, February 6, 2011, 8:56 AM
Am Sonntag, 6. Februar 2011, 05:57:50 schrieb Luke X.:
> Hello,
>
> I have 2
identical Logitech C310 webcams and 2 different Linux boxes (Ubuntu Karmic
64bit, 2.6.31 AND Ubuntu Lucid 32bit, 2.6.32). None of the combinations can
save jpegs directly from the camera. I always get the same error which I am
starting to believe comes straight from the kernel (many different programs
I've tried give the same error message). For instance:
> --- Capturing frame...
> fswc_verify_jpeg_dht,420: Inserting DHT segment into JPEG frame.
> Corrupt JPEG data: 1 extraneous bytes before marker 0xd1
> Captured frame in 0.00 seconds.
> --- Processing captured image...
> There are unsaved changes to the image.
>
> The line with error is:
> Corrupt JPEG data: 1 extraneous bytes before marker 0xd1
>
> Any hope to make it work? Please let me know if you need more data. I've used
> Linux for years but I am no driver/module/kernel expert.
It would be easiest to get an usbmon trace
to verify that the camera
indeed does provide an extra byte before marker 0xd1.
Regards
Oliver
c310-cam.tgz
Description: GNU Unix tar archive
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