Hi Oliver, On Monday 23 September 2013 18:37:48 Oliver Schinagl wrote: > On 09/23/13 16:45, Sylwester Nawrocki wrote: > > Hi, > > > > I would like to have a short discussion on LED flash devices support > > in the kernel. Currently there are two APIs: the V4L2 and LED class > > API exposed by the kernel, which I believe is not good from user space > > POV. Generic applications will need to implement both APIs. I think we > > should decide whether to extend the led class API to add support for > > more advanced LED controllers there or continue to use the both APIs > > with overlapping functionality. > > There has been some discussion about this on the ML, but without any > > consensus reached [1]. > > What about the linux-pwm framework and its support for the backlight via > dts? > > Or am I talking way to uninformed here. Copying backlight to flashlight > with some minor modification sounds sensible in a way... Flash has more advanced requirements, such as internal/external trigger support, hardware timings control, overheat prevention, ... Furthermore, a flash API should not be limited to LEDs, as Xeon flashes are common and similar enough to be supported by the same API. I would like to see the two APIs merged in a way, at least for flash devices. -- Regards, Laurent Pinchart -- 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
