USB camera compatibility question

Barney Wolff barney at databus.com
Fri Nov 21 11:48:48 PST 2003


On Fri, Nov 21, 2003 at 01:43:13AM +0100, Barry Bouwsma wrote:
> 
> Yes, because so far the images snarfed with my hacks are okay for the
> first 4096 bytes, thereafter failing to match the perfect images I can
> download with the `mtools' utilities from a printer cum card slot.
> There seem to be chunks of NULs present regularly throughout the file.

The "junk at byte 4097" symptom matches what I get with a Sony F707
on -current using the OHCI usb controller.  I believe it's a bug in
the ohci driver but don't know more than that.

-- 
Barney Wolff         http://www.databus.com/bwresume.pdf
I'm available by contract or FT, in the NYC metro area or via the 'Net.


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