On 10/21/2013 06:40 PM, Bryan Wu wrote: > On Sat, Oct 19, 2013 at 1:25 PM, Ricardo Ribalda Delgado > <ricardo.ribalda@xxxxxxxxx> wrote: >> Please find the multi selection api proposal attached. >> >> See you in Edinburgh. >> >> >> Thanks >> >> On Sat, Oct 19, 2013 at 2:17 AM, Bryan Wu <cooloney@xxxxxxxxx> wrote: >>> On Wed, Oct 16, 2013 at 5:12 PM, Andy Walls <awalls@xxxxxxxxxxxxxxxx> wrote: >>>> On Thu, 2013-10-17 at 08:36 +0900, Milo Kim wrote: >>>> >>>>>> That's current solution, we plan to unify this two API since those >>>>>> chip are basically LED. >>>>>> >>>>>>> On the other hands, LM3642 has an indicator mode with flash/torch. >>>>>>> Then, it will consist of 3 parts - MFD core, LED(indicator) and >>>>>>> V4L2(flash/torch). >>>>>>> >>>>>> >>>>>> So if one LED device driver can support that, we don't need these 3 parts. >>>>> >>>>> Let me clarify our discussion briefly. >>>>> >>>>> For the flash and torch, there are scattered user-space APIs. >>>>> We need to unify them. >>>> >>>> Sorry for the late input. >>>> >>>> There are also subject matter illuminators (is that the same as torch?). >>>> They may be LED or halogen incadescent bulbs that are integral to a >>>> device such as the QX5 microscope: >>>> >>>> http://git.linuxtv.org/media_tree.git/blob/HEAD:/drivers/media/usb/cpia2/cpia2_v4l.c#l1152 >>>> >>>> The V4L2 user controls ioctl()'s are used to control those two lamps >>>> currently. Their activation seemed like a switch the user would want to >>>> turn easily, via a GUI that contained other V4L2 device controls. >>>> >>>> Do these fit in anywhere into the unification? Not that I'm advocating >>>> that. I just thought cases like this shouldn't be overlooked in deciding >>>> what to do. >>>> >>>> Regards, >>>> Andy >>>> >>>>> We are considering supporting V4L2 structures in the LED camera trigger. >>>>> Then, camera application controls the flash/torch via not the LED sysfs >>>>> but the V4L2 ioctl interface. >>>>> So, changing point is the ledtrig-camera.c. No chip driver changes at all. >>>>> >>>>> Is it correct? >>>>> >>>>> Best regards, >>>>> Milo >>>> >>>> >>> >>> Please find my proposal attached and probably my colleague Paul >>> Walmsley will show up for this media mini summit if he is available. >>> >>> Thanks, >>> -Bryan >> >> > > Is the time and location of media mini-summit fixed? My colleague > might show up if it's not conflicted with ARM mini-summit. It's in the Glamis room on Wednesday. We start at 9 am and the LED topic is currently scheduled as the second topic so I expect that it will be discussed between 9 and 10 am. Regards, Hans -- 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
