1 .. -*- coding: utf-8; mode: rst -*-
3 .. _FE_ENABLE_HIGH_LNB_VOLTAGE:
5 ********************************
6 ioctl FE_ENABLE_HIGH_LNB_VOLTAGE
7 ********************************
12 FE_ENABLE_HIGH_LNB_VOLTAGE - Select output DC level between normal LNBf voltages or higher LNBf - voltages.
18 .. c:function:: int ioctl( int fd, FE_ENABLE_HIGH_LNB_VOLTAGE, unsigned int high )
19 :name: FE_ENABLE_HIGH_LNB_VOLTAGE
26 File descriptor returned by :ref:`open() <frontend_f_open>`.
31 - 0 - normal 13V and 18V.
33 - >0 - enables slightly higher voltages instead of 13/18V, in order
34 to compensate for long antenna cables.
40 Select output DC level between normal LNBf voltages or higher LNBf
41 voltages between 0 (normal) or a value grater than 0 for higher
48 On success 0 is returned.
50 On error -1 is returned, and the ``errno`` variable is set
53 Generic error codes are described at the
54 :ref:`Generic Error Codes <gen-errors>` chapter.