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# make sure that the /dev/v4l2loopback module can be used by the 'video' group
# note: this allows all members of 'video' to create and remove v4l2loopback
# devices....
KERNEL=="v4l2loopback", GROUP="video"
# persistent device names for loopback devices
SUBSYSTEM=="video4linux", KERNEL=="video*", DEVPATH=="*/virtual/*", SYMLINK+="v4l/by-id/v4l2loopback-$attr{name}-video"
# grant access to sysfs properties for group 'video'
# - read access to all properties
# - write access to 'max_openers' and 'format'
ACTION=="add", SUBSYSTEM=="video4linux", DEVPATH=="*/virtual/*" RUN+="/usr/bin/find %S%p -maxdepth 1 -type f -exec /bin/chgrp video {} +" RUN+="/usr/bin/find %S%p -maxdepth 1 -type f ( -name max_openers -or -name format ) -exec /bin/chmod g+rw {} +"
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