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.
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