.. 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.