Other Parts Discussed in Thread: THS8200
Hello everyone,
We got an informanction about opening a linux device file "/dev/video2" or "/dev/video3" to be a display device from the page 50 of TI document "LSP_1.30_DM6467_VPIF_Display_Video_Driver_User_Guide ".
Then we used "video_loopback" demo code in "/dvsdk_2_00_00_22/dmai_1_20_00_06" to test display output and we modified some parameters as following:
1. modified input signal source to be "COMPOSITE" before it called "Capture_detectVideoStd()"
cAttrs.videoInput = Capture_Input_COMPOSITE;
2.modified the display device before it called "Display_create()"
dAttrs.displayDevice = displayDevice; /* displayDevice = "/dev/video3" or "/dev/video2" */
dAttrs.videoOutput = Display_Output_COMPOSITE;
When the display device was setted to "/dev/video2", the program "video_loopback.x470MV" worked well on Linux 2.6.18(Monta Vista). We can see the video from "composite output channel" on DM6467 EVM board.
But there was error message "Failed to create display device" occurred when the display device was setted to "/dev/video3"!!
So, could anyone help us to use the device "/dev/video3" correctly?
And which channels on DM6467 EVM board(composite, S-Video or component) should be connected to monitor when using the device "/dev/video3"?
Thank you very much!!
Ernest
