58 lines
1.4 KiB
ReStructuredText
58 lines
1.4 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
|
|
.. c:namespace:: RC
|
|
|
|
.. _lirc_get_min_timeout:
|
|
.. _lirc_get_max_timeout:
|
|
|
|
****************************************************
|
|
ioctls LIRC_GET_MIN_TIMEOUT and LIRC_GET_MAX_TIMEOUT
|
|
****************************************************
|
|
|
|
Name
|
|
====
|
|
|
|
LIRC_GET_MIN_TIMEOUT / LIRC_GET_MAX_TIMEOUT - Obtain the possible timeout
|
|
range for IR receive.
|
|
|
|
Synopsis
|
|
========
|
|
|
|
.. c:macro:: LIRC_GET_MIN_TIMEOUT
|
|
|
|
``int ioctl(int fd, LIRC_GET_MIN_TIMEOUT, __u32 *timeout)``
|
|
|
|
.. c:macro:: LIRC_GET_MAX_TIMEOUT
|
|
|
|
``int ioctl(int fd, LIRC_GET_MAX_TIMEOUT, __u32 *timeout)``
|
|
|
|
Arguments
|
|
=========
|
|
|
|
``fd``
|
|
File descriptor returned by open().
|
|
|
|
``timeout``
|
|
Timeout, in microseconds.
|
|
|
|
Description
|
|
===========
|
|
|
|
Some devices have internal timers that can be used to detect when
|
|
there's no IR activity for a long time. This can help lircd in
|
|
detecting that a IR signal is finished and can speed up the decoding
|
|
process. Returns an integer value with the minimum/maximum timeout
|
|
that can be set.
|
|
|
|
.. note::
|
|
|
|
Some devices have a fixed timeout, in that case
|
|
both ioctls will return the same value even though the timeout
|
|
cannot be changed via :ref:`LIRC_SET_REC_TIMEOUT`.
|
|
|
|
Return Value
|
|
============
|
|
|
|
On success 0 is returned, on error -1 and the ``errno`` variable is set
|
|
appropriately. The generic error codes are described at the
|
|
:ref:`Generic Error Codes <gen-errors>` chapter.
|