> -----Original Message----- > From: Laurent Pinchart [mailto:laurent.pinchart@xxxxxxxxxxxxxxxx] > Sent: Tuesday, March 16, 2010 5:30 PM > To: Aguirre, Sergio > Cc: Sakari Ailus; linux-media@xxxxxxxxxxxxxxx > Subject: Re: [omap3camera] Camera bring-up on Zoom3 (OMAP3630) > > Hi Sergio, > > On Friday 05 March 2010 15:54:58 Aguirre, Sergio wrote: > > Hi Laurent, Sakari, > > Oops, just noticed I forgot to answer your e-mail, sorry. No problem. > > > I'm trying to get latest Sakari's tree (gitorious.org/omap3camera) > > 'devel' branch running on my Zoom3 HW (which has an OMAP3630, and a > > Sony IMX046 8MP sensor). > > > > I had first one NULL pointer dereference while the driver was > > registering devices and creating entities, which I resolved with > > the attached patch. (Is this patch acceptable, or maybe I am missing > > something...) > > Either that, or make OMAP34XXCAM_VIDEODEVS dynamic (the value would be > passed > through platform data). The code will be removed (hopefully soon) anyway > when > the legacy video nodes will disappear. Ok, so should I keep this patch only to myself until this code is removed? > > > And now, I don't get quite clear on how the created nodes work out. > > > > Now I have /dev/video[0-5], but I don't know how I'm I supposed to > handle > > them... > > > > Here's my current work-in-progress kernel: > > > > http://dev.omapzoom.org/?p=saaguirre/linux-omap- > camera.git;a=shortlog;h=re > > fs/heads/omap-devel-wip > > > > Can you please give some guidance on it? > > Basically, the driver creates OMAP34XXCAM_VIDEODEVS "legacy" video nodes, > one > for each sensor connected to the ISP. As your board has a single sensor, > the > driver will create the /dev/video0 legacy video node. Ok. > > Legacy video nodes use hard-coded assumptions that were implemented > according > to Nokia's use cases on the N900. They can only offer a subset of the > functions available in the hardware. Hmm... Well, that should get me also at least a simple stream out of it for the moment. :) > > For full access to the ISP, you will need to use the new video nodes (1 to > 5). > Those video nodes are to be used in conjunction with the media controller. > All > the necessary patches aren't available yet, but they should be soon (it's > hopefully a matter of days to get the userspace API there). Great! > > I will try to make a userspace test application available when the patches > will be pushed to the linux-omap-camera tree. That would be really nice. :) Thanks and Regards, Sergio > > -- > 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
