path: root/include/media/videobuf2-core.h
diff options
Diffstat (limited to 'include/media/videobuf2-core.h')
1 files changed, 5 insertions, 1 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index fc910a622451..2fefcf491aa8 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -295,7 +295,7 @@ struct vb2_buffer {
* can return an error if hardware fails, in that case all
* buffers that have been already given by the @buf_queue
* callback are to be returned by the driver by calling
- * @vb2_buffer_done(VB2_BUF_STATE_DEQUEUED).
+ * @vb2_buffer_done(VB2_BUF_STATE_QUEUED).
* If you need a minimum number of buffers before you can
* start streaming, then set @min_buffers_needed in the
* vb2_queue structure. If that is non-zero then
@@ -380,6 +380,9 @@ struct v4l2_fh;
* @start_streaming_called: start_streaming() was called successfully and we
* started streaming.
* @error: a fatal error occurred on the queue
+ * @waiting_for_buffers: used in poll() to check if vb2 is still waiting for
+ * buffers. Only set for capture queues if qbuf has not yet been
+ * called since poll() needs to return POLLERR in that situation.
* @fileio: file io emulator internal data, used only if emulator is active
* @threadio: thread io internal data, used only if thread is active
@@ -417,6 +420,7 @@ struct vb2_queue {
unsigned int streaming:1;
unsigned int start_streaming_called:1;
unsigned int error:1;
+ unsigned int waiting_for_buffers:1;
struct vb2_fileio_data *fileio;
struct vb2_threadio_data *threadio;