.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
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.. c:namespace:: RC
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.. _lirc_set_measure_carrier_mode:
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***********************************
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ioctl LIRC_SET_MEASURE_CARRIER_MODE
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***********************************
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Name
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====
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LIRC_SET_MEASURE_CARRIER_MODE - enable or disable measure mode
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Synopsis
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========
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.. c:macro:: LIRC_SET_MEASURE_CARRIER_MODE
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``int ioctl(int fd, LIRC_SET_MEASURE_CARRIER_MODE, __u32 *enable)``
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Arguments
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=========
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``fd``
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File descriptor returned by open().
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``enable``
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enable = 1 means enable measure mode, enable = 0 means disable measure
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mode.
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Description
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===========
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.. _lirc-mode2-frequency:
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Enable or disable measure mode. If enabled, from the next key
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press on, the driver will send ``LIRC_MODE2_FREQUENCY`` packets. By
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default this should be turned off.
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Return Value
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============
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On success 0 is returned, on error -1 and the ``errno`` variable is set
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appropriately. The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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