using TC358840 on Jetson Tx2

we want to use TC358840 convent 4k hdmi to mipi in jetson TX2. we refer the topic “4K HDMI Capture Module based on TC358840” I changed the kernel in jetpack 3.2 DP version. then I have found the dev node /dev/video0 in the fs. But I using some cmd to capture the video like gst-launch-1.0, Yavta etc. But I get nothing,just a 8K size memory buffer.otherwise,when I changed the resolution of the hdmi video source, I found the TC358840 had detect the resolution. How do I to debug this.Thanks.

hello beijing_PL,

could please share your capture commands and also the kernel message to us.