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media: docs: libv4l-introduction.rst: Fix function signature and link

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v4l2_mmap returns a void*, also link to mmap instead of munmap

Signed-off-by: Daniel Lundberg Pedersen <dlp@qtec.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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Daniel Lundberg Pedersen 2022-08-31 16:54:59 +02:00 committed by Mauro Carvalho Chehab
parent 74869a88f9
commit 5cd5f13444
1 changed files with 2 additions and 2 deletions
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Documentation/userspace-api/media/v4l/libv4l-introduction.rst
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@ -136,9 +136,9 @@ V4L2 functions
operates like the :c:func:`read()` function. operates like the :c:func:`read()` function.
.. c:function:: void v4l2_mmap(void *start, size_t length, int prot, int flags, int fd, int64_t offset); .. c:function:: void *v4l2_mmap(void *start, size_t length, int prot, int flags, int fd, int64_t offset);
operates like the :c:func:`munmap()` function. operates like the :c:func:`mmap()` function.
.. c:function:: int v4l2_munmap(void *_start, size_t length); .. c:function:: int v4l2_munmap(void *_start, size_t length);