pub fn list() -> Result<impl Iterator<Item = Result<Device>>>Expand description
Returns an iterator over all connected V4L2 devices.
This will enumerate all devices in /dev that match one of the V4L2 device file patterns:
/dev/video*: webcams, capture cards, video output devices, codecs, video overlays, etc./dev/vbi*: devices for capturing and outputting raw Vertical Blanking Interval data./dev/radio*: AM and FM radio transmitters and receivers./dev/swradio*: Software-defined radios./dev/v4l-touch*: Touch screens and other touch devices./dev/v4l-subdev*: A sub-device exported as part of a bigger device.