/dev/video2 appears to be the device
1280x720 960x540 640x480 supported resolutions
v4l2-ctl --list-formats -d /dev/video2
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'MJPG' (compressed)
Name : MJPEG
Index : 1
Type : Video Capture
Pixel Format: 'YUYV'
Name : YUV 4:2:2 (YUYV)