Hi, it seems there is a bug in videobuf_reqbufs(). Depend on the spec (http://www.linuxtv.org/downloads/video4linux/API/V4L2_API/spec-single/v4l2.html#VIDIOC-REQBUFS), it should be possible to deallocate all buffers. This doesn't work, because videobuf_reqbufs() bails out with EINVAL, if the function is called with a count lower than 1 (videobuf-core.c, line #399). Deallocate should be done with count set to 0. Regards, Hartmut -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html