I had this when moving from DM355 EVM to our custom board. I don't know if it would be the same kind of issue on DM6446..
On ours, the problem was that the VPFE driver has support for the TVP5146 deoder written into it, it failed to communicate with that chip over I2C and failed to finish loading. I went in with a machette and cut all the TVP5146 stuff out and it works now. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of dilip Sent: 27 June 2008 11:30 To: [email protected] Subject: Problem with opening /dev/video0 device 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 Racelogic is a limited company registered in England. Registered number 2743719 . Registered Office Unit 10, Swan Business Centre, Osier Way, Buckingham, Bucks, MK18 1TB . The information contained in this electronic mail transmission is intended by Racelogic Ltd for the use of the named individual or entity to which it is directed and may contain information that is confidential or privileged. If you have received this electronic mail transmission in error, please delete it from your system without copying or forwarding it, and notify the sender of the error by reply email so that the sender's address records can be corrected. The views expressed by the sender of this communication do not necessarily represent those of Racelogic Ltd. Please note that Racelogic reserves the right to monitor e-mail communications passing through its network _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
