make sure the vpfe is loaded. post the whole booting log if possible. --- On Fri, 6/27/08, dilip <[EMAIL PROTECTED]> wrote:
> From: dilip <[EMAIL PROTECTED]> > Subject: Problem with opening /dev/video0 device > To: [email protected] > Date: Friday, June 27, 2008, 10:30 AM > Hi all, > > We have installed new tool chain dvsdk 1.30.00. We have our > custom board > developed on DM6446(Davinci) processor. > > When we are running "./encodedecode" demo (TI > sample demo) on our board with > new version, if is displaying message > > can't open /dev/video0 : No such file or directory > > but with old version (dvsdk 1.0), it is working properly. > (/dev/video0 is > used for caturing data from CCD-interface). > > Atfer board is boot up with new version , we checked the > "/dev" folder. > "video0" device is not present, but when we boot > with old version, it is > present in /dev and it works properly. > > If anyone has faced the similar problem, please let us > know. > > Following are the kernel-settings we have enabled for V4L2 > capture as > built-in before creating uImage: > Device Drivers--> Multimedia devices--> <*> > video for linux > -->video for > linus --> <*>Davinci > Video Capture > > ---TVP5146 > video decoder > > ---MT9T001 > sensor > > > Following are the environment variables > ("bootargs") setting: > > For old version dvsdk 1.00.00, the settings are: > 1. setenv bootargs 'console=ttyS0,115200n8 noinitrd rw > root=/dev/nfs > nfsroot=10.50.40.216:/root/workdir/filesys,nolock > ip=10.50.40.236:10.50.40.216:10.50.40.1:255.255.248.0:Elix1000::off > mem=120M' > > 2. setenv run 'setboot;tftpboot 0x86000000 > uImage_DVBS;bootm 0x86000000' > setenv bootcmd 'run setboot;tftpboot 0x86000000 > uImage_10;bootm 0x86000000' > > For new version dvsdk 1.30.00, the settings are: > 1.setenv bootargs > video=davincifb:vid0=720*576*16,2500K:vid1=720*576*16,2500K:osd0=720*576*16, > 2025K davinci_enc_mngr.ch0_output=COMPOSITE > davinci_enc_mngr.ch0_mode=pal > console=ttyS0,115200n8 noinitrd rw ip=10.50.40.123 > root=/dev/nfs > nfsroot=10.50.40.212:/home/workdir/filesys,nolock mem=120M > > 2.setenv bootcmd 'setenv setboot setenv bootargs > \$(bootargs) > davinci_enc_mngr.ch0_mode=\$(videostd); run > setboot;tftpboot 0x86000000 > > Thanks, > dilip. > > > The information contained in this electronic message and > any attachments to this message are intended for the > exclusive use of the addressee(s) and may contain > proprietary, confidential or privileged information. If you > are not the intended recipient, you should not disseminate, > distribute or copy this e-mail. Please notify the sender > immediately and destroy all copies of this message and any > attachments contained in it. > > Contact your Administrator for further information. > > _______________________________________________ > Davinci-linux-open-source mailing list > [email protected] > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
