[Bug 207219] [BISECTED] Sony Vaio laptop built-in ricoh webcam no longer found on Fedora 31 with 5.4.11 kernel

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



https://bugzilla.kernel.org/show_bug.cgi?id=207219

--- Comment #1 from Alan Stern (stern@xxxxxxxxxxxxxxxxxxx) ---
You should collect usbmon traces showing what happens when the camera is
initialized, under both a good and a bad kernel.  The best way to do this is
probably:

  cat /sys/kernel/debug/usb/usbmon/1u >OUTPUT-FILENAME &
  echo 0 >/sys/bus/usb/devices/1-1/bConfigurationValue
  echo 1 >/sys/bus/usb/devices/1-1/bConfigurationValue
  ... wait a few seconds ...
  fg
  ^C

It's obvious that the camera is sending nonsense data to the system; maybe the
trace will help show why.

-- 
You are receiving this mail because:
You are watching the assignee of the bug.



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux