Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) .. c:namespace:: RC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) .. _lirc_get_min_timeout:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) .. _lirc_get_max_timeout:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) ****************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) ioctls LIRC_GET_MIN_TIMEOUT and LIRC_GET_MAX_TIMEOUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) ****************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) Name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) ====
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) LIRC_GET_MIN_TIMEOUT / LIRC_GET_MAX_TIMEOUT - Obtain the possible timeout
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) range for IR receive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) Synopsis
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) ========
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) .. c:macro:: LIRC_GET_MIN_TIMEOUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) ``int ioctl(int fd, LIRC_GET_MIN_TIMEOUT, __u32 *timeout)``
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) .. c:macro:: LIRC_GET_MAX_TIMEOUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) ``int ioctl(int fd, LIRC_GET_MAX_TIMEOUT, __u32 *timeout)``
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) Arguments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) =========
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) ``fd``
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)     File descriptor returned by open().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) ``timeout``
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)     Timeout, in microseconds.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) Description
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) ===========
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) Some devices have internal timers that can be used to detect when
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) there's no IR activity for a long time. This can help lircd in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) detecting that a IR signal is finished and can speed up the decoding
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) process. Returns an integer value with the minimum/maximum timeout
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) that can be set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) .. note::
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)    Some devices have a fixed timeout, in that case
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)    both ioctls will return the same value even though the timeout
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)    cannot be changed via :ref:`LIRC_SET_REC_TIMEOUT`.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) Return Value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) ============
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) On success 0 is returned, on error -1 and the ``errno`` variable is set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) appropriately. The generic error codes are described at the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) :ref:`Generic Error Codes <gen-errors>` chapter.