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ERROR: v4l2 capture: VIDIOC_QBUF:buffer already queued

Question asked by anjo john on Jul 11, 2018
Latest reply on Jul 19, 2018 by Joan Xie

Hi All,

We have a camera card based on ov5640 over mipi interface connected to our custom board with imx6 dualite. Streaming works fine. But sometimes the camera stops working. give below error 

ERROR: v4l2 capture: VIDIOC_QBUF: buffer already queued

if i again restart the camera application,it will work. 

would anyone please tell me how to debug this, and what error indicates  by VIDIOC_QBUF: buffer already queued from mxc_v4l2_capture.c