[PATCH v3 15/15] [media] vb2: add out-fence support to QBUF

From: Gustavo Padovan If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create an out_fence and sent to userspace on the V4L2_EVENT_BUF_QUEUED when the buffer is queued to the driver. The out fence fd returned references the next buffer to be queued

[PATCH v3 15/15] [media] vb2: add out-fence support to QBUF

From: Gustavo Padovan If V4L2_BUF_FLAG_OUT_FENCE flag is present on the QBUF call we create an out_fence and sent to userspace on the V4L2_EVENT_BUF_QUEUED when the buffer is queued to the driver. The out fence fd returned references the next buffer to be queued to the driver and not the buffer