A very minor point, but I've found some then/than confusion:
746: V4L2_LOG_ERR("attempting to open more then %d video devices\n", // should be than
1038: V4L2_LOG_ERR("set_fmt gave us a different result then try_fmt!\n"); // should be than
1318: /* No more buffers then we can manage please */ // should be than
The rest of the 'then's in that file seem ok.
