Logitec C270 fails, permission problem



Webcam worked once, but the next day, no joy. After much digging and troubleshooting, I looked at the streamers log file and found the problem. However, I'm not sure of the fix. The Pi user is a member of the video group, so that's not it. Tail of the log file follows.

pi@octopi:/var/log $ tail webcamd.log
Running ./mjpg_streamer -o output_http.so -w ./www-octopi -n -i input_uvc.so -r 1280x720 -f 30
MJPG Streamer Version.: 2.0
i: Using V4L2 device.: /dev/video0
i: Desired Resolution: 1280 x 720
i: Frames Per Second.: 30
i: Format............: JPEG
i: TV-Norm...........: DEFAULT
ERROR opening V4L interface: Permission denied
Init v4L2 failed !! exit fatal
i: init_VideoIn failed


Strangely, it just started working again and the error is no longer appearing in the log. Nothing was done, no updates or anything, it just started working the next day.
Oh well. A Mystery.


Did you reboot in the meantime?


On the day it wasn't working, I rebooted at least three times with no success.


Really odd. I run this webcam myself and have never seen this :thinking:


I put this at the end of my /etc/init.d/octoprint

nohup /home/user1/mjpg-streamer/mjpg-streamer-experimental/mjpg_streamer -i "/home/user1/mjpg-streamer/mjpg-streamer-experimental/input_uvc.so -y -br auto -cb auto -wb auto -gain auto -q 100 -r XGA" -o "/home/user1/mjpg-streamer/mjpg-streamer-experimental/output_http.so" &

But I have a non standard build...