From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- .../userspace-api/media/rc/lirc-get-timeout.rst | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/userspace-api/media/rc/lirc-get-timeout.rst (limited to 'Documentation/userspace-api/media/rc/lirc-get-timeout.rst') diff --git a/Documentation/userspace-api/media/rc/lirc-get-timeout.rst b/Documentation/userspace-api/media/rc/lirc-get-timeout.rst new file mode 100644 index 000000000..597c3282a --- /dev/null +++ b/Documentation/userspace-api/media/rc/lirc-get-timeout.rst @@ -0,0 +1,57 @@ +.. 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 ` chapter. -- cgit v1.2.3