Kernel bisection led to following output:
692763f31fc2b9d12350fb7f4daacb2f35664d3e is the first bad commit
commit 692763f31fc2b9d12350fb7f4daacb2f35664d3e
Author: Alan Stern <st...@rowland.harvard.edu>
Date: Mon Oct 28 10:52:35 2019 -0400
USB: Skip endpoints with 0 maxpacket length
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The output of lsusb in comment #7 shows that an endpoint with address
0x82 shows up twice. First with 'wMaxPacketSize 0x0000 1x 0 bytes',
second 'wMaxPacketSize 0x13fc 3x 1020 bytes'.
Probably that endpoint is dropped when encountering wMaxPacketSize = 0
and no streaming interface is created.
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https://bugs.launchpad.net/bugs/1861344
Title:
uvcvideo: IPEVO Ziggi-HD document camera stops working on kernel
4.4.0-171
Status in linux package in Ubuntu:
Incomplete
Bug description:
I have a IPEVO Ziggi-HD document camera (1778:0207) that refuses to
operate on kernel 4.4.0-171 or newer. On such kernels, uvcvideo fails
with the kernel message 'uvcvideo: No streaming interface found for
terminal 2' and no `/dev/videoX` device is created.
The camera operates correctly on kernel 4.4.0-170.
Ubuntu release: 16.04.6 LTS
Attached in a tarball:
* a relevant /var/log/syslog fragment captured when device plugged in
* `cat /proc/version_signature`
* `sudo lspci -vnvn`
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1861344/+subscriptions
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