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linux/drivers/media/v4l2-core
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Philipp Zabel c16218402a [media] videobuf2: return -EPIPE from DQBUF after the last buffer 
If the last buffer was dequeued from a capture queue, let poll return
immediately and let DQBUF return -EPIPE to signal there will no more
buffers to dequeue until STREAMOFF.
The driver signals the last buffer by setting the V4L2_BUF_FLAG_LAST.
To reenable dequeuing on the capture queue, the driver must explicitly
call vb2_clear_last_buffer_queued. The last buffer queued flag is
cleared automatically during STREAMOFF.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-12 03:53:06 -03:00
..
Kconfig [media] v4l: VIDEOBUF2_DMA_SG should depend on HAS_DMA 2015-05-01 07:12:12 -03:00
Makefile [media] vb2: Add videobuf2-dvb support 2014-04-16 18:59:29 -03:00
tuner-core.c [media] tuner-core: fix compilation if the media controller is not defined 2015-02-26 08:44:04 -03:00
v4l2-async.c [media] v4l2-async: Don't use dynamic static allocation 2013-11-08 09:45:43 -02:00
v4l2-clk.c [media] V4L: add CCF support to the v4l2_clk API 2015-04-02 18:33:42 -03:00
v4l2-common.c [media] v4l2-common: move v4l2_ctrl_check to cx2341x 2014-11-25 08:25:36 -02:00
v4l2-compat-ioctl32.c [media] V4L2: fix VIDIOC_CREATE_BUFS 32-bit compatibility mode data copy-back 2014-11-03 15:11:59 -02:00
v4l2-ctrls.c [media] media/v4l2-ctrls: Always execute EXECUTE_ON_WRITE ctrls 2015-04-08 06:34:44 -03:00
v4l2-dev.c [media] v4l2-dev: disable selection ioctls for non-video devices 2015-04-02 18:30:00 -03:00
v4l2-device.c [media] v4l2-core: remove the old .ioctl BKL replacement 2015-03-02 17:06:56 -03:00
v4l2-dv-timings.c [media] v4l2-dv-timings: replace hsync magic number with a macro 2015-05-01 07:15:38 -03:00
v4l2-event.c [media] v4l: Add source change event 2014-05-23 19:50:40 -03:00
v4l2-fh.c [media] media: v4l2-core: remove the use of V4L2_FL_USE_FH_PRIO flag 2014-07-04 16:14:22 -03:00
v4l2-ioctl.c v4l2-ioctl: add a missing break at v4l_fill_fmtdesc() 2015-05-01 06:54:03 -03:00
v4l2-mem2mem.c [media] videobuf2: return -EPIPE from DQBUF after the last buffer 2015-05-12 03:53:06 -03:00
v4l2-of.c [media] v4l: of: Parse variable length properties --- link-frequencies 2015-04-27 16:04:28 -03:00
v4l2-subdev.c [media] V4L2: Delete an unnecessary check before the function call "media_entity_put" 2015-04-08 07:38:19 -03:00
videobuf2-core.c [media] videobuf2: return -EPIPE from DQBUF after the last buffer 2015-05-12 03:53:06 -03:00
videobuf2-dma-contig.c [media] vb2: Push mmap_sem down to memops 2015-05-01 07:17:27 -03:00
videobuf2-dma-sg.c [media] vb2: Push mmap_sem down to memops 2015-05-01 07:17:27 -03:00
videobuf2-dvb.c [media] vb2: Add videobuf2-dvb support 2014-04-16 18:59:29 -03:00
videobuf2-memops.c Revert "[media] v4l: vb2-memops: use vma slab when vma allocation" 2015-04-08 13:17:09 -03:00
videobuf2-vmalloc.c [media] vb2: Push mmap_sem down to memops 2015-05-01 07:17:27 -03:00
videobuf-core.c [media] videobuf: fix sparse warnings 2014-11-05 09:07:58 -02:00
videobuf-dma-contig.c [media] videobuf-dma-contig: set vm_pgoff to be zero to pass the sanity check in vm_iomap_memory() 2014-10-24 09:32:41 -02:00
videobuf-dma-sg.c [media] videobuf: make unused exported functions static 2015-01-27 10:01:33 -02:00
videobuf-dvb.c
videobuf-vmalloc.c [media] Revert "[media] videobuf_vm_{open,close} race fixes" 2014-02-04 06:29:46 -02:00