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saMmapLoopback not working in 2.6.37 kernel

anees kA
Prodigy 185 points

Hi,

 

I am trying to use saMmapLoopback on OMAP3EVM board with 2.6.37 kernel. After booting in to it, I found that there are 9 video nodes - from /dev/video0 to /dev/video8 . Can anyone please tell me how to use saMmapLoopback to test video loopback?

  • 0
    Prodigy 185 points

    More info from the saMmapLoopback application running on my board.

    root@dm3730-am3715-evm:/home# ./saMmapLoopback -i /dev/video0 -o /dev/video7

    input - /dev/video0 : 595

    output - /dev/video7 : 596

    Capture: Opened Channel

    initCapture:194 - Capture: Capable of streaming

    initCapture:206 - VIDIOC_G_FMT: Invalid argument

    main:614 - Error in opening capture device for channel 0

    Does any one know why this is so? The same app was running fine in 2.6.32 omap3evm kernel.

  • 0 in reply to anees kA
    Prodigy 20 points

    hello,I have meet the same problem,,can you tell me how to resolve the problem, Thank you!