FE_ENABLE_HIGH_LNB_VOLTAGE — Select output DC level between normal LNBf voltages or higher LNBf voltages.
|unsigned int high|
File descriptor returned by
0 - normal 13V and 18V.
>0 - enables slightly higher voltages instead of 13/18V, in order to compensate for long antenna cables.
Select output DC level between normal LNBf voltages or higher LNBf voltages between 0 (normal) or a value grater than 0 for higher voltages.
On success 0 is returned, on error -1 and the
errno variable is set appropriately. The generic error codes are described at the Generic Error Codes chapter.