49 lines
904 B
ReStructuredText
49 lines
904 B
ReStructuredText
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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
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.. c:namespace:: DTV.dmx
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.. _DMX_SET_BUFFER_SIZE:
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===================
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DMX_SET_BUFFER_SIZE
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===================
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Name
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----
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DMX_SET_BUFFER_SIZE
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Synopsis
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--------
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.. c:macro:: DMX_SET_BUFFER_SIZE
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``int ioctl(int fd, DMX_SET_BUFFER_SIZE, unsigned long size)``
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Arguments
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---------
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``fd``
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File descriptor returned by :c:func:`open()`.
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``size``
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Unsigned long size
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Description
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-----------
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This ioctl call is used to set the size of the circular buffer used for
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filtered data. The default size is two maximum sized sections, i.e. if
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this function is not called a buffer size of ``2 * 4096`` bytes will be
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used.
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Return Value
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------------
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On success 0 is returned.
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On error -1 is returned, and the ``errno`` variable is set
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appropriately.
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The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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