最終更新:2018-01-12 (金) 19:39:53 (256d)  

include/uapi/linux/videodev2.h?
VIDIOC_DQBUF はてなブックマークを見る
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Applications call the VIDIOC_DQBUF ioctl to dequeue a filled (capturing) or displayed (output) buffer from the driver’s outgoing queue.

#define VIDIOC_DQBUF _IOWR('V', 17, struct v4l2_buffer)

関連

  • VIDIOC_QBUF?