USB camera not detected by 8.1, was working in 7

Alexander Churanov alexanderchuranov at gmail.com
Wed Nov 10 13:41:25 UTC 2010


2010/11/10 Alexander Motin <mav at freebsd.org>:
>
> As I can see, things go wrong just after first request to device -
> INQUIRY. After that CAM tries to fetch details of error with REQUEST
> SENSE and again fails. I think you had no enabled verbose kernel
> messages at that moment, so I can't see some error messages I would
> expect there. But from this data I don't think that something is wrong
> with CAM. I would start digging toward umass driver (enable debug there)
> to find out what can be the source of these errors. Device should not
> return error in response to INQUIRY.
>
> PS: I can see that umass has special quirk to simulate fake INQUIRY
> response in some cases. I have no idea what the hell it is, but may be
> it is related here.

Alexander,

Thank you for comments. I'll enable additional debugging and try to
examine the behavior of this device with other operating systems.

Sincerely,
Alexander Churanov


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