In flashcam.c when it does a VIDIOC_G_FMT, it gives an error (the string has a typo as _S_). The _S_FMT works, but maybe the _CAPTURE doesn't have a "get".

Building had one problem on my system where I had to define CONFIG_VIDEO_V4L1_COMPAT in the module source file for the include to pick up all the structures.