On 2012-01-19 06:35, Gary Thomas wrote:
On 2012-01-19 06:28, Laurent Pinchart wrote:
Hi Gary,
On Thursday 19 January 2012 14:13:53 Gary Thomas wrote:
On 2012-01-19 05:50, Laurent Pinchart wrote:
On Thursday 19 January 2012 13:41:57 Gary Thomas wrote:
On 2012-01-17 08:33, Laurent Pinchart wrote:
<snip>
I already had a couple of YUV support patches in my OMAP3 ISP tree at
git.kernel.org. I've rebased them on top of the lastest V4L/DVB tree
and pushed them to
http://git.linuxtv.org/pinchartl/media.git/shortlog/refs/heads/omap3isp
- omap3isp-yuv. Could you please try them, and see if they're usable
with your sensor ?
I just tried this kernel with my board. The media control
infrastructure comes up and all of the devices are created, but I can't
access them.
From the bootup log:
Linux media interface: v0.10
Linux video capture interface: v2.00
Any message from the omap3isp driver and from the sensor driver ?
No, it doesn't appear that the sensor was probed (or maybe it failed but
no messages). I'll check into this.
Is the omap3-isp driver compiled as a module ? If so, make sure iommu2.ko is
loaded first. 'rmmod omap3-isp&& modprobe iommu2&& modprobe omap3-isp' is a
quick way to test it.
I have everything compiled in - no modules.
My camera init code is attached. In the previous kernel, the I2C bus was
probed implicitly when I initialized the OMAP3ISP. I thought I remembered
some discussion about how that worked (maybe changing), so this is probably
where the problem starts.
If you have an example, I can check my setup against it.
Note: I reworked how the sensor+I2C was initialized to be
omap3_init_camera(&cobra3530p73_isp_platform_data);
omap_register_i2c_bus(cobra3530p73_isp_platform_data.subdevs->subdevs[0].i2c_adapter_id,
400,
cobra3530p73_isp_platform_data.subdevs->subdevs[0].board_info, 1);
The TVP5150 is now found, but 'media-ctl -p' still dies :-(
I'm going to see if I can't figure out where the ENXIO is coming from...
Has the way of adding the sensors on the i2c bus changed? I have my
TVP5150 on a i2c-2 all by itself and with the 3.0+ kernel, it was being
added when I initialized the camera subsystem.
Do you have an example driver (like the BeagleBoard one that was in
your omap3isp-sensors-next branch previously)?
When I try to access the devices:
root@cobra3530p73:~# media-ctl -p
Opening media device /dev/media0
media_open_debug: Can't open media device /dev/media0
Failed to open /dev/media0
Could you please strace that ?
Attached. Looks like it blows up immediately.
Note: my media-ctl program was built from SRCREV
7266b1b5433b5644a06f05edf61c36864ab11683
The devices look OK to me:
root@cobra3530p73:~# ls -l /dev/v* /dev/med*
crw------- 1 root root 252, 0 Nov 8 10:44 /dev/media0
crw-rw---- 1 root video 81, 7 Nov 8 10:44 /dev/v4l-subdev0
crw-rw---- 1 root video 81, 8 Nov 8 10:44 /dev/v4l-subdev1
crw-rw---- 1 root video 81, 9 Nov 8 10:44 /dev/v4l-subdev2
crw-rw---- 1 root video 81, 10 Nov 8 10:44 /dev/v4l-subdev3
crw-rw---- 1 root video 81, 11 Nov 8 10:44 /dev/v4l-subdev4
crw-rw---- 1 root video 81, 12 Nov 8 10:44 /dev/v4l-subdev5
crw-rw---- 1 root video 81, 13 Nov 8 10:44 /dev/v4l-subdev6
crw-rw---- 1 root video 81, 14 Nov 8 10:44 /dev/v4l-subdev7
crw-rw---- 1 root video 81, 15 Nov 8 10:44 /dev/v4l-subdev8
crw-rw---- 1 root tty 7, 0 Nov 8 10:44 /dev/vcs
crw-rw---- 1 root tty 7, 1 Nov 8 10:44 /dev/vcs1
crw-rw---- 1 root tty 7, 128 Nov 8 10:44 /dev/vcsa
crw-rw---- 1 root tty 7, 129 Nov 8 10:44 /dev/vcsa1
crw-rw---- 1 root video 81, 0 Nov 8 10:44 /dev/video0
crw-rw---- 1 root video 81, 1 Nov 8 10:44 /dev/video1
crw-rw---- 1 root video 81, 2 Nov 8 10:44 /dev/video2
crw-rw---- 1 root video 81, 3 Nov 8 10:44 /dev/video3
crw-rw---- 1 root video 81, 4 Nov 8 10:44 /dev/video4
crw-rw---- 1 root video 81, 5 Nov 8 10:44 /dev/video5
crw-rw---- 1 root video 81, 6 Nov 8 10:44 /dev/video6
Have the device nodes have been created manually ?
No, automatically created by udev.
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
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