Hi James, On Wednesday 21 December 2011 04:06:33 James wrote: > On Wed, Dec 21, 2011 at 10:50 AM, James wrote: > > On Thu, Dec 15, 2011 at 6:10 PM, Michael Jones wrote: > >> Hi James, > >> > >> Laurent has a program 'media-ctl' to set up the pipeline (see > >> http://git.ideasonboard.org/?p=media-ctl.git). You will find many > >> examples of its usage in the archives of this mailing list. It will > >> look something like: > >> media-ctl -r > >> media-ctl -l '"OMAP3 ISP CCDC":1 -> "OMAP3 ISP CCDC output":0 [1]' > >> media-ctl -l '"your-sensor-name":0 -> "OMAP3 ISP CCDC":0 [1]' > >> > >> you will also need to set the formats through the pipeline with > >> 'media-ctl --set-format'. > >> > >> After you use media-ctl to set up the pipeline, you can use yavta to > >> capture the data from the CCDC output (for me, this is /dev/video2). > >> > >> > >> -Michael > > > > I encountered some obstacles with the driver testing of my monochrome > > sensor on top of Steve's 3.0-pm branch. An NXP SC16IS750 I2C-UART > > bridge is used to 'transform' the sensor into a I2C device. > > > > The PCLK, VSYNC, HSYNC (640x512, 30Hz, fixed output format) are free > > running upon power-on the sensor unlike MT9V032 which uses the XCLKA > > to 'power-on/off' it. > > > > My steps, > > > > 1) media-ctl -r -l '"mono640":0->"OMAP3 ISP CCDC":0:[1], "OMAP3 ISP > > CCDC":1->"OMAP3 ISP CCDC output":0[1]' > > > > Resetting all links to inactive > > Setting up link 16:0 -> 5:0 [1] > > Setting up link 5:1 -> 6:0 [1] > > > > 2) media-ctl -f '"mono640":0[Y12 640x512]", "OMAP3 ISP CCDC":1[Y12 > > 640x512]' > > > > Setting up format Y12 640x512 on pad OMAP3 ISP CCDC/0 > > Setting up format Y12 640x512 on pad OMAP3 ISP CCDC/1 > > > > 3) yavta -p -f Y12 -s 640x512 -n 4 --capture=61 --skip 1 -F `media-ctl > > -e "OMAP3 ISP CCDC output"` --file=./DCIM/Y12 > > > > Unsupported video format 'Y12' > > > > Did I missed something? I've just pushed a patch to the yavta repository to support Y10 and Y12. Please update. > > What parameters did you supplied to yavta to test the Y10/Y12 > > > > Many thanks in adv. > > Sorry if duplicated emails received. > > I changed the parameters for yavta from "-f Y12" to "-f Y16" > > yavta -p -f Y16 -s 640x512 -n 2 --capture=10 --skip 5 -F `media-ctl -e > "OMAP3 ISP CCDC output"` --file=./DCIM/Y16 > > and there are 2 chunks of message at the console now and it ended with > "Unable to request buffers: Invalid argument (22).". > > I've attached the logfile here. (mono640.log) > > Hope you can assist me to grab the raw Y12 data to file. -- 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
