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Diffstat (limited to 'Documentation/media/uapi/rc/lirc-get-features.rst')
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diff --git a/Documentation/media/uapi/rc/lirc-get-features.rst b/Documentation/media/uapi/rc/lirc-get-features.rst new file mode 100644 index 000000000..e763ebfb2 --- /dev/null +++ b/Documentation/media/uapi/rc/lirc-get-features.rst @@ -0,0 +1,181 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _lirc_get_features: + +*********************** +ioctl LIRC_GET_FEATURES +*********************** + +Name +==== + +LIRC_GET_FEATURES - Get the underlying hardware device's features + +Synopsis +======== + +.. cpp:function:: int ioctl( int fd, int request, __u32 *features) + +Arguments +========= + +``fd`` + File descriptor returned by open(). + +``request`` + LIRC_GET_FEATURES + +``features`` + Bitmask with the LIRC features. + + +Description +=========== + + +Get the underlying hardware device's features. If a driver does not +announce support of certain features, calling of the corresponding ioctls +is undefined. + +LIRC features +============= + +.. _LIRC-CAN-REC-RAW: + +``LIRC_CAN_REC_RAW`` + + Unused. Kept just to avoid breaking uAPI. + +.. _LIRC-CAN-REC-PULSE: + +``LIRC_CAN_REC_PULSE`` + + The driver is capable of receiving using + :ref:`LIRC_MODE_PULSE <lirc-mode-pulse>`. + +.. _LIRC-CAN-REC-MODE2: + +``LIRC_CAN_REC_MODE2`` + + The driver is capable of receiving using + :ref:`LIRC_MODE_MODE2 <lirc-mode-MODE2>`. + +.. _LIRC-CAN-REC-LIRCCODE: + +``LIRC_CAN_REC_LIRCCODE`` + + The driver is capable of receiving using + :ref:`LIRC_MODE_LIRCCODE <lirc-mode-LIRCCODE>`. + +.. _LIRC-CAN-SET-SEND-CARRIER: + +``LIRC_CAN_SET_SEND_CARRIER`` + + The driver supports changing the modulation frequency via + :ref:`ioctl LIRC_SET_SEND_CARRIER <LIRC_SET_SEND_CARRIER>`. + +.. _LIRC-CAN-SET-SEND-DUTY-CYCLE: + +``LIRC_CAN_SET_SEND_DUTY_CYCLE`` + + The driver supports changing the duty cycle using + :ref:`ioctl LIRC_SET_SEND_DUTY_CYCLE <LIRC_SET_SEND_DUTY_CYCLE>`. + +.. _LIRC-CAN-SET-TRANSMITTER-MASK: + +``LIRC_CAN_SET_TRANSMITTER_MASK`` + + The driver supports changing the active transmitter(s) using + :ref:`ioctl LIRC_SET_TRANSMITTER_MASK <LIRC_SET_TRANSMITTER_MASK>`. + +.. _LIRC-CAN-SET-REC-CARRIER: + +``LIRC_CAN_SET_REC_CARRIER`` + + The driver supports setting the receive carrier frequency using + :ref:`ioctl LIRC_SET_REC_CARRIER <LIRC_SET_REC_CARRIER>`. + +.. _LIRC-CAN-SET-REC-DUTY-CYCLE-RANGE: + +``LIRC_CAN_SET_REC_DUTY_CYCLE_RANGE`` + + Unused. Kept just to avoid breaking uAPI. + +.. _LIRC-CAN-SET-REC-CARRIER-RANGE: + +``LIRC_CAN_SET_REC_CARRIER_RANGE`` + + The driver supports + :ref:`ioctl LIRC_SET_REC_CARRIER_RANGE <LIRC_SET_REC_CARRIER_RANGE>`. + +.. _LIRC-CAN-GET-REC-RESOLUTION: + +``LIRC_CAN_GET_REC_RESOLUTION`` + + The driver supports + :ref:`ioctl LIRC_GET_REC_RESOLUTION <LIRC_GET_REC_RESOLUTION>`. + +.. _LIRC-CAN-SET-REC-TIMEOUT: + +``LIRC_CAN_SET_REC_TIMEOUT`` + + The driver supports + :ref:`ioctl LIRC_SET_REC_TIMEOUT <LIRC_SET_REC_TIMEOUT>`. + +.. _LIRC-CAN-SET-REC-FILTER: + +``LIRC_CAN_SET_REC_FILTER`` + + Unused. Kept just to avoid breaking uAPI. + +.. _LIRC-CAN-MEASURE-CARRIER: + +``LIRC_CAN_MEASURE_CARRIER`` + + The driver supports measuring of the modulation frequency using + :ref:`ioctl LIRC_SET_MEASURE_CARRIER_MODE <LIRC_SET_MEASURE_CARRIER_MODE>`. + +.. _LIRC-CAN-USE-WIDEBAND-RECEIVER: + +``LIRC_CAN_USE_WIDEBAND_RECEIVER`` + + The driver supports learning mode using + :ref:`ioctl LIRC_SET_WIDEBAND_RECEIVER <LIRC_SET_WIDEBAND_RECEIVER>`. + +.. _LIRC-CAN-NOTIFY-DECODE: + +``LIRC_CAN_NOTIFY_DECODE`` + + Unused. Kept just to avoid breaking uAPI. + +.. _LIRC-CAN-SEND-RAW: + +``LIRC_CAN_SEND_RAW`` + + Unused. Kept just to avoid breaking uAPI. + +.. _LIRC-CAN-SEND-PULSE: + +``LIRC_CAN_SEND_PULSE`` + + The driver supports sending using :ref:`LIRC_MODE_PULSE <lirc-mode-pulse>`. + +.. _LIRC-CAN-SEND-MODE2: + +``LIRC_CAN_SEND_MODE2`` + + The driver supports sending using :ref:`LIRC_MODE_MODE2 <lirc-mode-mode2>`. + +.. _LIRC-CAN-SEND-LIRCCODE: + +``LIRC_CAN_SEND_LIRCCODE`` + + The driver supports sending codes (also called as IR blasting or IR TX). + + +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. |