10 V4L2_BUF_FLAG_NO_CACHE_INVALIDATE
11 V4L2_BUF_FLAG_NO_CACHE_CLEAN
12 V4L2_BUF_FLAG_TIMESTAMP_MASK
13 V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN
14 V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC
15 V4L2_BUF_FLAG_TIMESTAMP_COPY
16 V4L2_BUF_FLAG_TSTAMP_SRC_MASK
17 V4L2_BUF_FLAG_TSTAMP_SRC_EOF
18 V4L2_BUF_FLAG_TSTAMP_SRC_SOE