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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
commit9f0fc191371843c4fc000a226b0a26b6c059aacd (patch)
tree35f8be3ef04506ac891ad001e8c41e535ae8d01d /Documentation/driver-api/media/v4l2-dev.rst
parentReleasing progress-linux version 6.6.15-2~progress7.99u1. (diff)
downloadlinux-9f0fc191371843c4fc000a226b0a26b6c059aacd.tar.xz
linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/driver-api/media/v4l2-dev.rst')
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diff --git a/Documentation/driver-api/media/v4l2-dev.rst b/Documentation/driver-api/media/v4l2-dev.rst
index 99e3b5fa74..d5cb19b21a 100644
--- a/Documentation/driver-api/media/v4l2-dev.rst
+++ b/Documentation/driver-api/media/v4l2-dev.rst
@@ -157,14 +157,6 @@ changing the e.g. exposure of the webcam.
Of course, you can always do all the locking yourself by leaving both lock
pointers at ``NULL``.
-If you use the old :ref:`videobuf framework <vb_framework>` then you must
-pass the :c:type:`video_device`->lock to the videobuf queue initialize
-function: if videobuf has to wait for a frame to arrive, then it will
-temporarily unlock the lock and relock it afterwards. If your driver also
-waits in the code, then you should do the same to allow other
-processes to access the device node while the first process is waiting for
-something.
-
In the case of :ref:`videobuf2 <vb2_framework>` you will need to implement the
``wait_prepare()`` and ``wait_finish()`` callbacks to unlock/lock if applicable.
If you use the ``queue->lock`` pointer, then you can use the helper functions