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What is the relationship between vpbe_encoder.c an logicpd_encoder.c?

li zhang1
Prodigy 50 points

Hello everyone,

       I am using the DM355 borad with the DVSDK3.10 and linux2.6.32.

       I want to make the kernel to support the LCD OUTPUT. The LCD screen is 320x240. And I have read the document "LSP 1.20 DaVinci Linux Video Sysfs User's Guide.pdf", It shows that I should modify the logicpd encoder . I set the bootargs to " setenv bootargs 'mem=96M console=ttyS1,115200n8 root=/dev/ram0 rw initrd=0x82000000,15M ip=10.10.101.119:10.10.104.138:10.10.101.20:255.255.255.0:::off eth=00:01:02:03:04:06 davinci_enc_mngr.ch0_output=LCD davinci_enc_mngr.ch0_mode=640x480'". 

      I saved the kernel boot information, I found both of the vpbe_encoder and logicpd_encoder are initialized. I can't understand what they used for and the relationship.If I want the DM355 to support LCD output, which files should I mdify? And is there any document about the architecture of VPBE in linux2.6.32?

plz help! Any suggestions will be thank for !