Hi Chris, On Wednesday 09 November 2011 03:53:58 Chris Whittenburg wrote: > On Tue, Nov 8, 2011 at 6:42 AM, Laurent Pinchart wrote: > > 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/37f505296ccd3fb0 > >> >> >> 55e 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 > > Hi Laurent, > > Your last questions helped me find that sysfs wasn't mounted. I think > this is because meta-Angstrom was using systemd, and I changed it to > sysvinit, but must have missed something. > > With sysfs mounted, I get the following media-ctl -p output... Does > this look as expected? (The sensor still isn't connected-- it should > come in today, so ignore the "Failed to reset the camera" errors. Yes, the media-ctl -p output looks correct. > root@beagleboard:~# media-ctl -p > Opening media device /dev/media0 > Enumerating entities > Found 16 entities > Enumerating pads and links > Device topology > - entity 1: OMAP3 ISP CCP2 (2 pads, 2 links) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev0 > pad0: Input [SGRBG10 4096x4096] > <- 'OMAP3 ISP CCP2 input':pad0 [] > pad1: Output [SGRBG10 4096x4096] > -> 'OMAP3 ISP CCDC':pad0 [] > > - entity 2: OMAP3 ISP CCP2 input (1 pad, 1 link) > type Node subtype V4L > device node name /dev/video0 > pad0: Output > -> 'OMAP3 ISP CCP2':pad0 [] > > - entity 3: OMAP3 ISP CSI2a (2 pads, 2 links) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev1 > pad0: Input [SGRBG10 4096x4096] > pad1: Output [SGRBG10 4096x4096] > -> 'OMAP3 ISP CSI2a output':pad0 [] > -> 'OMAP3 ISP CCDC':pad0 [] > > - entity 4: OMAP3 ISP CSI2a output (1 pad, 1 link) > type Node subtype V4L > device node name /dev/video1 > pad0: Input > <- 'OMAP3 ISP CSI2a':pad1 [] > > - entity 5: OMAP3 ISP CCDC (3 pads, 9 links) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev2 > pad0: Input [SGRBG10 4096x4096] > <- 'OMAP3 ISP CCP2':pad1 [] > <- 'OMAP3 ISP CSI2a':pad1 [] > <- 'mt9p031 2-0048':pad0 [] > pad1: Output [SGRBG10 4096x4096] > -> 'OMAP3 ISP CCDC output':pad0 [] > -> 'OMAP3 ISP resizer':pad0 [] > pad2: Output [SGRBG10 4096x4095] > -> 'OMAP3 ISP preview':pad0 [] > -> 'OMAP3 ISP AEWB':pad0 [IMMUTABLE,ACTIVE] > -> 'OMAP3 ISP AF':pad0 [IMMUTABLE,ACTIVE] > -> 'OMAP3 ISP histogram':pad0 [IMMUTABLE,ACTIVE] > > - entity 6: OMAP3 ISP CCDC output (1 pad, 1 link) > type Node subtype V4L > device node name /dev/video2 > pad0: Input > <- 'OMAP3 ISP CCDC':pad1 [] > > - entity 7: OMAP3 ISP preview (2 pads, 4 links) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev3 > pad0: Input [SGRBG10 4096x4096] > <- 'OMAP3 ISP CCDC':pad2 [] > <- 'OMAP3 ISP preview input':pad0 [] > pad1: Output [YUYV 4082x4088] > -> 'OMAP3 ISP preview output':pad0 [] > -> 'OMAP3 ISP resizer':pad0 [] > > - entity 8: OMAP3 ISP preview input (1 pad, 1 link) > type Node subtype V4L > device node name /dev/video3 > pad0: Output > -> 'OMAP3 ISP preview':pad0 [] > > - entity 9: OMAP3 ISP preview output (1 pad, 1 link) > type Node subtype V4L > device node name /dev/video4 > pad0: Input > <- 'OMAP3 ISP preview':pad1 [] > > - entity 10: OMAP3 ISP resizer (2 pads, 4 links) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev4 > pad0: Input [YUYV 4095x4095 (4,6)/4086x4082] > <- 'OMAP3 ISP CCDC':pad1 [] > <- 'OMAP3 ISP preview':pad1 [] > <- 'OMAP3 ISP resizer input':pad0 [] > pad1: Output [YUYV 4096x4095] > -> 'OMAP3 ISP resizer output':pad0 [] > > - entity 11: OMAP3 ISP resizer input (1 pad, 1 link) > type Node subtype V4L > device node name /dev/video5 > pad0: Output > -> 'OMAP3 ISP resizer':pad0 [] > > - entity 12: OMAP3 ISP resizer output (1 pad, 1 link) > type Node subtype V4L > device node name /dev/video6 > pad0: Input > <- 'OMAP3 ISP resizer':pad1 [] > > - entity 13: OMAP3 ISP AEWB (1 pad, 1 link) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev5 > pad0: Input > <- 'OMAP3 ISP CCDC':pad2 [IMMUTABLE,ACTIVE] > > - entity 14: OMAP3 ISP AF (1 pad, 1 link) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev6 > pad0: Input > <- 'OMAP3 ISP CCDC':pad2 [IMMUTABLE,ACTIVE] > > - entity 15: OMAP3 ISP histogram (1 pad, 1 link) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev7 > pad0: Input > <- 'OMAP3 ISP CCDC':pad2 [IMMUTABLE,ACTIVE] > > - entity 16: mt9p031 2-0048 (1 pad, 1 link) > type V4L2 subdev subtype Unknown > device node name /dev/v4l-subdev8 > pad0: Output v4l2_subdev_open: Failed to open subdev device node > /dev/v4l-subdev8 > > -> 'OMAP3 ISP CCDC':pad0 [] > > Thanks. -- 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
