44 lines
845 B
ReStructuredText
44 lines
845 B
ReStructuredText
|
.. -*- coding: utf-8; mode: rst -*-
|
||
|
|
|
||
|
|
.. _lirc_get_length:
|
||
|
|
|
||
|
|
*********************
|
||
|
|
ioctl LIRC_GET_LENGTH
|
||
|
|
*********************
|
||
|
|
|
||
|
|
Name
|
||
|
|
====
|
||
|
|
|
||
|
|
LIRC_GET_LENGTH - Retrieves the code length in bits.
|
||
|
|
|
||
|
|
Synopsis
|
||
|
|
========
|
||
|
|
|
||
|
|
.. c:function:: int ioctl( int fd, LIRC_GET_LENGTH, __u32 *length )
|
||
|
|
:name: LIRC_GET_LENGTH
|
||
|
|
|
||
|
|
Arguments
|
||
|
|
=========
|
||
|
|
|
||
|
|
``fd``
|
||
|
|
File descriptor returned by open().
|
||
|
|
|
||
|
|
``length``
|
||
|
|
length, in bits
|
||
|
|
|
||
|
|
|
||
|
|
Description
|
||
|
|
===========
|
||
|
|
|
||
|
|
Retrieves the code length in bits (only for ``LIRC-MODE-LIRCCODE``).
|
||
|
|
Reads on the device must be done in blocks matching the bit count.
|
||
|
|
The bit could should be rounded up so that it matches full bytes.
|
||
|
|
|
||
|
|
|
||
|
|
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.
|