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- .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
- .. c:namespace:: RC
- .. _lirc_set_send_carrier:
- ***************************
- ioctl LIRC_SET_SEND_CARRIER
- ***************************
- Name
- ====
- LIRC_SET_SEND_CARRIER - Set send carrier used to modulate IR TX.
- Synopsis
- ========
- .. c:macro:: LIRC_SET_SEND_CARRIER
- ``int ioctl(int fd, LIRC_SET_SEND_CARRIER, __u32 *frequency)``
- Arguments
- =========
- ``fd``
- File descriptor returned by open().
- ``frequency``
- Frequency of the carrier to be modulated, in Hz.
- Description
- ===========
- Set send carrier used to modulate IR PWM pulses and spaces.
- 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.
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