linux/Documentation/linux_tv/media/dvb/fe-diseqc-reset-overload.rst

45 lines
1014 B
ReStructuredText
Raw Normal View History

.. -*- coding: utf-8; mode: rst -*-
.. _FE_DISEQC_RESET_OVERLOAD:
******************************
ioctl FE_DISEQC_RESET_OVERLOAD
******************************
NAME
====
FE_DISEQC_RESET_OVERLOAD - Restores the power to the antenna subsystem, if it was powered off due - to power overload.
SYNOPSIS
========
.. cpp:function:: int ioctl( int fd, int request, NULL )
ARGUMENTS
=========
``fd``
File descriptor returned by :ref:`open() <frontend_f_open>`.
``request``
FE_DISEQC_RESET_OVERLOAD
DESCRIPTION
===========
If the bus has been automatically powered off due to power overload,
this ioctl call restores the power to the bus. The call requires
read/write access to the device. This call has no effect if the device
is manually powered off. Not all DVB adapters support this ioctl.
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.