Driver writers can benefit in knowing if/when callbacks are called in
interrupt context. But it is not completely obvious here, so document
it.
Signed-off-by: Luca Ceresoli <luca@xxxxxxxxxxxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Pawel Osciak <pawel@xxxxxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
---
Changes v1 -> v2:
- Fix typo in the title.
---
include/media/videobuf2-core.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index f20000887d3c..f6818f732f34 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -296,6 +296,9 @@ struct vb2_buffer {
/**
* struct vb2_ops - driver-specific callbacks.
*
+ * These operations are not called from interrupt context except where
+ * mentioned specifically.
+ *
* @queue_setup: called from VIDIOC_REQBUFS() and VIDIOC_CREATE_BUFS()
* handlers before memory allocation. It can be called
* twice: if the original number of requested buffers
--
2.7.4
