how do I capture images using cedrus or sun6i-csi?

[Eric]

The pinePhone lists these devices: cedrus, & sun6i-csi

$v4l2-ctl --list-devices
cedrus (platform:cedrus):
	/dev/video0

sun6i-csi (platform:csi):
	/dev/video1

how do I capture an image from either one of these devices?
these both have listings when I run lsmod.