Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/Documentation/media/uapi/rc/lirc-set-rec-carrier-range.rst b/Documentation/media/uapi/rc/lirc-set-rec-carrier-range.rst
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+.. -*- coding: utf-8; mode: rst -*-
+
+.. _lirc_set_rec_carrier_range:
+
+********************************
+ioctl LIRC_SET_REC_CARRIER_RANGE
+********************************
+
+Name
+====
+
+LIRC_SET_REC_CARRIER_RANGE - Set lower bound of the carrier used to modulate
+IR receive.
+
+Synopsis
+========
+
+.. c:function:: int ioctl( int fd, LIRC_SET_REC_CARRIER_RANGE, __u32 *frequency )
+    :name: LIRC_SET_REC_CARRIER_RANGE
+
+Arguments
+=========
+
+``fd``
+    File descriptor returned by open().
+
+``frequency``
+    Frequency of the carrier that modulates PWM data, in Hz.
+
+Description
+===========
+
+This ioctl sets the upper range of carrier frequency that will be recognized
+by the IR receiver.
+
+.. note::
+
+   To set a range use :ref:`LIRC_SET_REC_CARRIER_RANGE
+   <LIRC_SET_REC_CARRIER_RANGE>` with the lower bound first and later call
+   :ref:`LIRC_SET_REC_CARRIER <LIRC_SET_REC_CARRIER>` with the upper bound.
+
+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.