Thanks, Vaibhav Hiremath > -----Original Message----- > From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap- > owner@xxxxxxxxxxxxxxx] On Behalf Of DongSoo(Nathaniel) Kim > Sent: Tuesday, March 03, 2009 8:18 AM > To: Tuukka.O Toivonen > Cc: Aguirre Rodriguez, Sergio Alberto; linux-omap@xxxxxxxxxxxxxxx; > Ailus Sakari (Nokia-D/Helsinki); Nagalla, Hari > Subject: Re: [REVIEW PATCH 11/14] OMAP34XXCAM: Add driver > > Hi Tuukka, > > I understand that it is a huge thing to support VIDIOC_S_INPUT. > But without that, we don't have any proper "V4L2" api to get > information about how many devices are attached to camera interface, > and names of input devices...and so on. Because VIDIOC_ENUMINPUT and > VIDIOC_G_INPUT needs VIDIOC_S_INPUT for prior. Of course we can > refer > to sysfs, but using only single set of APIs like V4L2 looks more > decent. > > What do you think about this? > If you think that it is a big burden, can I make a patch for this? > Cheers, > [Hiremath, Vaibhav] You may want to refer to the thread on this subject. http://marc.info/?l=linux-omap&m=122772175002777&w=2 http://marc.info/?l=linux-omap&m=122823846806440&w=2 > Nate > > On Mon, Feb 23, 2009 at 5:50 PM, Tuukka.O Toivonen > <tuukka.o.toivonen@xxxxxxxxx> wrote: > > On Monday 23 February 2009 10:08:54 ext DongSoo(Nathaniel) Kim > wrote: > >> So, logically it does not make sense with making device nodes of > every > >> single slave attached with OMAP3camera interface. Because they > can't > >> be opened at the same time,even if it is possible it should not > work > >> properly. > >> > >> So.. how about making only single device node like /dev/video0 > for > >> OMAP3 camera interface and make it switchable through V4L2 API. > Like > >> VIDIOC_S_INPUT? > > > > You are right that if the OMAP3 has several camera sensors > attached > > to its camera interface, generally just one can be used at once. > > > > However, from user's perspective those are still distinct > > cameras. Many v4l2 applications don't support VIDIOC_S_INPUT > > or at least it will be more difficult to use than just pointing > > an app to the correct video device. Logically they are two > > independent cameras, which can't be used simultaneously > > due to HW restrictions. > > > > - Tuukka > > > > > > -- > ======================================================== > DongSoo(Nathaniel), Kim > Engineer > Mobile S/W Platform Lab. S/W centre > Telecommunication R&D Centre > Samsung Electronics CO., LTD. > e-mail : dongsoo.kim@xxxxxxxxx > dongsoo45.kim@xxxxxxxxxxx > ======================================================== > -- > To unsubscribe from this list: send the line "unsubscribe linux- > omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
