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+.. Permission is granted to copy, distribute and/or modify this
+.. document under the terms of the GNU Free Documentation License,
+.. Version 1.1 or any later version published by the Free Software
+.. Foundation, with no Invariant Sections, no Front-Cover Texts
+.. and no Back-Cover Texts. A copy of the license is included at
+.. Documentation/userspace-api/media/fdl-appendix.rst.
+..
+.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
+
+.. _lirc_set_rec_carrier:
+
+**************************
+ioctl LIRC_SET_REC_CARRIER
+**************************
+
+Name
+====
+
+LIRC_SET_REC_CARRIER - Set carrier used to modulate IR receive.
+
+
+Synopsis
+========
+
+.. c:function:: int ioctl( int fd, LIRC_SET_REC_CARRIER, __u32 *frequency )
+    :name: LIRC_SET_REC_CARRIER
+
+Arguments
+=========
+
+``fd``
+    File descriptor returned by open().
+
+``frequency``
+    Frequency of the carrier that modulates PWM data, in Hz.
+
+Description
+===========
+
+Set receive carrier used to modulate IR PWM pulses and spaces.
+
+.. note::
+
+   If called together with :ref:`LIRC_SET_REC_CARRIER_RANGE`, this ioctl
+   sets the upper bound frequency that will be recognized by the device.
+
+
+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.