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79 lines
1.4 KiB
79 lines
1.4 KiB
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later |
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.. c:namespace:: DTV.video |
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.. _video_fwrite: |
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================= |
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dvb video write() |
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================= |
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Name |
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---- |
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dvb video write() |
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.. attention:: This ioctl is deprecated. |
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Synopsis |
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-------- |
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.. c:function:: size_t write(int fd, const void *buf, size_t count) |
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Arguments |
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--------- |
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.. flat-table:: |
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:header-rows: 0 |
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:stub-columns: 0 |
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- .. row 1 |
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- int fd |
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- File descriptor returned by a previous call to open(). |
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- .. row 2 |
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- void \*buf |
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- Pointer to the buffer containing the PES data. |
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- .. row 3 |
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- size_t count |
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- Size of buf. |
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Description |
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----------- |
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This system call can only be used if VIDEO_SOURCE_MEMORY is selected |
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in the ioctl call VIDEO_SELECT_SOURCE. The data provided shall be in |
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PES format, unless the capability allows other formats. If O_NONBLOCK |
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is not specified the function will block until buffer space is |
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available. The amount of data to be transferred is implied by count. |
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Return Value |
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------------ |
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.. flat-table:: |
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:header-rows: 0 |
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:stub-columns: 0 |
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- .. row 1 |
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- ``EPERM`` |
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- Mode VIDEO_SOURCE_MEMORY not selected. |
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- .. row 2 |
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- ``ENOMEM`` |
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- Attempted to write more data than the internal buffer can hold. |
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- .. row 3 |
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- ``EBADF`` |
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- fd is not a valid open file descriptor.
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