1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later 2 .. c:namespace:: RC 3 4 .. _lirc_get_min_timeout: 5 .. _lirc_get_max_timeout: 6 7 **************************************************** 8 ioctls LIRC_GET_MIN_TIMEOUT and LIRC_GET_MAX_TIMEOUT 9 **************************************************** 10 11 Name 12 ==== 13 14 LIRC_GET_MIN_TIMEOUT / LIRC_GET_MAX_TIMEOUT - Obtain the possible timeout 15 range for IR receive. 16 17 Synopsis 18 ======== 19 20 .. c:macro:: LIRC_GET_MIN_TIMEOUT 21 22 ``int ioctl(int fd, LIRC_GET_MIN_TIMEOUT, __u32 *timeout)`` 23 24 .. c:macro:: LIRC_GET_MAX_TIMEOUT 25 26 ``int ioctl(int fd, LIRC_GET_MAX_TIMEOUT, __u32 *timeout)`` 27 28 Arguments 29 ========= 30 31 ``fd`` 32 File descriptor returned by open(). 33 34 ``timeout`` 35 Timeout, in microseconds. 36 37 Description 38 =========== 39 40 Some devices have internal timers that can be used to detect when 41 there's no IR activity for a long time. This can help lircd in 42 detecting that a IR signal is finished and can speed up the decoding 43 process. Returns an integer value with the minimum/maximum timeout 44 that can be set. 45 46 .. note:: 47 48 Some devices have a fixed timeout, in that case 49 both ioctls will return the same value even though the timeout 50 cannot be changed via :ref:`LIRC_SET_REC_TIMEOUT`. 51 52 Return Value 53 ============ 54 55 On success 0 is returned, on error -1 and the ``errno`` variable is set 56 appropriately. The generic error codes are described at the 57 :ref:`Generic Error Codes <gen-errors>` chapter.
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