Our TX1 capture TC358840 video Signal, when the plug->unplug->plug the HDMI signal line, will continue to print “frame start syncpt timeout”, can not return to normal.
Only restart video capture process to restore normal.
In vi2_fops.c in the kernel, tegra_channel_ec_recover(Chan) is invoked after a timeout error, why does the video capture not return to normal?
I have a few questions about implement v4l2 control.
1, if I want to control the VI2 device, I need to open which device file, is/dev/videoX,/dev/nvhost-vi, or other device files
2, I want to test the APP passes a parameter to VI via ‘ioctl’, such as ‘V4L2_CID_VI_BYPASS_MODE’ in channel.c, when I make headers_install for the kernel, the header file of the command(camera_common.h) is not copied. Is this command only used within the kernel and cannot be supplied to the APP ?