V4L2_MEMORY_MMAP
reqbufs.memory = V4L2_MEMORY_MMAP;
buffer.memory = V4L2_MEMORY_MMAP;
buffer.memory = V4L2_MEMORY_MMAP;
buffer.memory = V4L2_MEMORY_MMAP;
sc->sc_mmap[i].v4l2_buf.memory = V4L2_MEMORY_MMAP;
qb->memory != V4L2_MEMORY_MMAP ||
qb->memory != V4L2_MEMORY_MMAP ||
dqb->memory != V4L2_MEMORY_MMAP)
sc->sc_mmap[i].v4l2_buf.memory = V4L2_MEMORY_MMAP;
qb->memory != V4L2_MEMORY_MMAP ||
qb->memory != V4L2_MEMORY_MMAP ||
dqb->memory != V4L2_MEMORY_MMAP)