1 .. -*- coding: utf-8; mode: rst -*-
3 .. _lirc_set_transmitter_mask:
5 *******************************
6 ioctl LIRC_SET_TRANSMITTER_MASK
7 *******************************
12 LIRC_SET_TRANSMITTER_MASK - Enables send codes on a given set of transmitters
17 .. cpp:function:: int ioctl( int fd, int request, __u32 *mask )
23 File descriptor returned by open().
26 LIRC_SET_TRANSMITTER_MASK
29 Mask with channels to enable tx. Channel 0 is the least significant bit.
35 Some IR TX devices have multiple output channels, in such case,
36 :ref:`LIRC_CAN_SET_TRANSMITTER_MASK <LIRC-CAN-SET-TRANSMITTER-MASK>` is
37 returned via :ref:`LIRC_GET_FEATURES` and this ioctl sets what channels will
40 This ioctl enables the given set of transmitters. The first transmitter is
41 encoded by the least significant bit and so on.
43 When an invalid bit mask is given, i.e. a bit is set, even though the device
44 does not have so many transitters, then this ioctl returns the number of
45 available transitters and does nothing otherwise.
51 On success 0 is returned, on error -1 and the ``errno`` variable is set
52 appropriately. The generic error codes are described at the
53 :ref:`Generic Error Codes <gen-errors>` chapter.