V4L2_MEMORY_MMAP
case V4L2_MEMORY_MMAP:
buf->memory = V4L2_MEMORY_MMAP;
if (userbuf->memory != V4L2_MEMORY_MMAP) {
if (buf->memory != V4L2_MEMORY_MMAP) {
buf->memory, V4L2_MEMORY_MMAP);
buf->memory = V4L2_MEMORY_MMAP;