Debugging

Enable Dynamic Debugging in kernel.

Run below commands to enable logs on console

echo 1 > /sys/module/v4l2_mem2mem/parameters/debug
echo 8 > /sys/module/videobuf2_core/parameters/debug
echo 8 > /sys/module/videobuf2_v4l2/parameters/debug
echo 8 > /proc/sys/kernel/printk