Hi Chris, On Tuesday 08 November 2011 03:03:43 Chris Whittenburg wrote: > On Mon, Nov 7, 2011 at 5:14 AM, Laurent Pinchart wrote: > > On Monday 07 November 2011 12:08:15 Gary Thomas wrote: > >> On 2011-11-06 15:26, Chris Whittenburg wrote: > >> > On Fri, Nov 4, 2011 at 6:49 AM, Laurent Pinchart wrote: > >> >> On Tuesday 25 October 2011 04:48:13 Chris Whittenburg wrote: > >> >>> I'm using oe-core to build the 3.0.7+ kernel, which runs fine on my > >> >>> beagleboard-xm. > >> >> > >> >> You will need board code to register the OMAP3 ISP platform device > >> >> that will then be picked by the OMAP3 ISP driver. Example of such > >> >> board code can be found at > >> >> > >> >> http://git.linuxtv.org/pinchartl/media.git/commit/37f505296ccd3fb055e > >> >> 03b 2ab15ccf6ad4befb8d > >> > > >> > I followed your example to add the MT9P031 support, and now I get > >> > /dev/media0 and /dev/video0 to 7. > >> > > >> > I don't have the actual sensor hooked up yet. > >> > > >> > If I try "media-ctl -p", I see lots of "Failed to open subdev device > >> > node" msgs. > >> > http://pastebin.com/F1TC9A1n > >> > > >> > This is with the media-ctl utility from: > >> > http://feeds.angstrom-distribution.org/feeds/core/ipk/eglibc/armv7a/ba > >> > se/ media-ctl_0.0.1-r0_armv7a.ipk > >> > > >> > I also tried with the latest from your media-ctl repository, but got > >> > the same msgs. > >> > > >> > Is this an issue with my 3.0.8 kernel not being compatible with > >> > current media-ctl utility? Is there some older commit that I should > >> > build from? Or maybe it is just a side effect of the sensor not being > >> > connected yet. > >> > >> Does your kernel config enable CONFIG_VIDEO_V4L2_SUBDEV_API? > > Yes, it is enabled... Here is a snippet of my config: > > # > # Multimedia core support > # > CONFIG_MEDIA_CONTROLLER=y > CONFIG_VIDEO_DEV=y > CONFIG_VIDEO_V4L2_COMMON=y > CONFIG_VIDEO_V4L2_SUBDEV_API=y > CONFIG_DVB_CORE=m > CONFIG_VIDEO_MEDIA=m > > > And does your system run udev, or have you created the device nodes > > manually ? > > It runs udev-173... I didn't create the nodes manually. > > I also have the /dev/v4l-subdev0 to 7 entries, as expected. > > Anything else I should check? Could you please send me the output of the following commands ? ls -l /dev/v4l-subdev* ls -l /sys/dev/char/ And, optionally, strace ./media-ctl -p -- 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
