FE_ENABLE_HIGH_LNB_VOLTAGE — Select output DC level between normal LNBf voltages or higher LNBf voltages.
int ioctl( | int fd, |
| int request, | |
unsigned int high); |
fdFile descriptor returned by open().
requestFE_ENABLE_HIGH_LNB_VOLTAGE
highValid flags:
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.
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 Generic Error Codes chapter.