2.5.12. ioctl FE_ENABLE_HIGH_LNB_VOLTAGE¶
2.5.12.1. Name¶
FE_ENABLE_HIGH_LNB_VOLTAGE - Select output DC level between normal LNBf voltages or higher LNBf - voltages.
2.5.12.2. Synopsis¶
- int ioctl(int fd, FE_ENABLE_HIGH_LNB_VOLTAGE, unsigned int high)¶
2.5.12.3. Arguments¶
- fd
- File descriptor returned by open().
- high
Valid flags:
- 0 - normal 13V and 18V.
- >0 - enables slightly higher voltages instead of 13/18V, in order to compensate for long antenna cables.
2.5.12.4. Description¶
Select output DC level between normal LNBf voltages or higher LNBf voltages between 0 (normal) or a value grater than 0 for higher voltages.
2.5.12.5. 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.