Hello, Sakari. I would like to understand how to use subdevice (like adp1653) in current v4l2 framework from user space. My understanding is following. Kernel has two drivers (simplified view): - camera device - flash device Kernel initializes a camera driver from a platform specific setup code. The camera driver loads the subdevice drivers. Later I could access the subdevice driver parts via IOCTL(s) on /dev/videoX device node. What I have missed. - if the subdevice creates device node /dev/v4l-subdevX, how the user space will know the X is corresponding to let say flash device? - if there is no v4l-subdevX device node, when and how the kernel runs ->open() and ->close() methods of v4l2_subdev_internal_ops? -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
