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author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2022-08-11 12:17:49 +0300 |
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committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-08-29 17:50:27 +0300 |
commit | 3e9ad662e34eb2d42ddef5a2883abd34461dfd9a (patch) | |
tree | d10835dbc45f5bb4466c9e2cf42b5adce9cdb964 /drivers/staging/media/deprecated/saa7146/av7110/video-fwrite.rst | |
parent | e33fdb5a02490059e2f48ced2c038c8a46c6476d (diff) | |
download | linux-3e9ad662e34eb2d42ddef5a2883abd34461dfd9a.tar.xz |
media: av7110: move to staging/media/deprecated/saa7146
The av7110 driver depends on saa7146, so move it there.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/staging/media/deprecated/saa7146/av7110/video-fwrite.rst')
-rw-r--r-- | drivers/staging/media/deprecated/saa7146/av7110/video-fwrite.rst | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/staging/media/deprecated/saa7146/av7110/video-fwrite.rst b/drivers/staging/media/deprecated/saa7146/av7110/video-fwrite.rst new file mode 100644 index 000000000000..a07fd7d7a40e --- /dev/null +++ b/drivers/staging/media/deprecated/saa7146/av7110/video-fwrite.rst @@ -0,0 +1,79 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later +.. c:namespace:: DTV.video + +.. _video_fwrite: + +================= +dvb video write() +================= + +Name +---- + +dvb video write() + +.. attention:: This ioctl is deprecated. + +Synopsis +-------- + +.. c:function:: size_t write(int fd, const void *buf, size_t count) + +Arguments +--------- + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + - .. row 1 + + - int fd + + - File descriptor returned by a previous call to open(). + + - .. row 2 + + - void \*buf + + - Pointer to the buffer containing the PES data. + + - .. row 3 + + - size_t count + + - Size of buf. + +Description +----------- + +This system call can only be used if VIDEO_SOURCE_MEMORY is selected +in the ioctl call VIDEO_SELECT_SOURCE. The data provided shall be in +PES format, unless the capability allows other formats. If O_NONBLOCK +is not specified the function will block until buffer space is +available. The amount of data to be transferred is implied by count. + +Return Value +------------ + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + - .. row 1 + + - ``EPERM`` + + - Mode VIDEO_SOURCE_MEMORY not selected. + + - .. row 2 + + - ``ENOMEM`` + + - Attempted to write more data than the internal buffer can hold. + + - .. row 3 + + - ``EBADF`` + + - fd is not a valid open file descriptor. |