Our processor is DRA74X, with 3.02.00.03 SDK version.
At our custom board, there is video converter(ADV7611), and it's 8-bit BT656 output directly connect to Vin-3a port of DRA74X. And DRA74X use i2c-1 to control this converter.
I already modify dts file to make a connection between vin3a & ADV7611. I can see /dev/video1 by " ls /dev/video* ", but after i use " v4l2-ctl --list-device ", there is no /dev/video1.
After i use "strace" for application, the attached file is the log.
It seems the open function fail to open /dev/video1. But i can see it through "ls /dev/video1"
What's the reason could cause this situation? And what can i do for further debug?