On Tue, Nov 8, 2011 at 6:42 AM, Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > 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 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. 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. -- 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
