# Command: timeout 4 v4l2-ctl -d /dev/video11 --set-fmt-video=width=1920,height=1080,pixelformat=NV12 --stream-mmap=4 --stream-count=90 --stream-poll 2>&1 | tail -5

		VIDIOC_REQBUFS returned -1 (Device or resource busy)
VIDIOC_S_FMT: failed: Device or resource busy
