Would like to write a (minimal) V4L2 driver for a (mipi) camera sensor. I didn't find some kind of template that contains the stuff that is same in almost all kind of this. So probably I have to learn from what is in kernel already, right? This is what I found: https://linuxtv.org/downloads/v4l-dvb-apis-new/driver-api/camera-sensor.html http://www.thedirks.org/v4l2/v4l2dwg.htm https://www.kernel.org/doc/html/v4.16/media/uapi/v4l/v4l2.html https://01.org/linuxgraphics/gfx-docs/drm/media/kapi/v4l2-subdev.html But what I didn't found, neither in any docs nor in one of the existing drivers: I don't find a single one that seems to support TRIGGER. Is there a special reason for that? Can someone give me a hint why this is like that? In the real world many of the cameras have this. Thanks
