Attach debdiff built from https://code.launchpad.net/~vicamo/ubuntu/+source/v4l2loopback/+git/v4l2loopback/+ref/bug-1921474/support-client-usage-v4l2-event-api/hirsute.
Attach debdiff built from https:/ /code.launchpad .net/~vicamo/ ubuntu/ +source/ v4l2loopback/ +git/v4l2loopba ck/+ref/ bug-1921474/ support- client- usage-v4l2- event-api/ hirsute.