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media: docs: v4l2-subdev: fix typo 

Fix "Helper functions exists" -> "Helper functions exist".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Luca Ceresoli 2020-09-21 22:21:32 +02:00 committed by Mauro Carvalho Chehab
parent 6cab05cf69
commit c1ebbe52bd
1 changed files with 1 additions and 1 deletions
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Documentation/driver-api/media/v4l2-subdev.rst
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@ -34,7 +34,7 @@ provides host private data for that purpose that can be accessed with
From the bridge driver perspective, you load the sub-device module and somehow
obtain the :c:type:`v4l2_subdev` pointer. For i2c devices this is easy: you call
``i2c_get_clientdata()``. For other buses something similar needs to be done.
Helper functions exists for sub-devices on an I2C bus that do most of this
Helper functions exist for sub-devices on an I2C bus that do most of this
tricky work for you.
Each :c:type:`v4l2_subdev` contains function pointers that sub-device drivers