projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5377d91f MH |
1 | .. -*- coding: utf-8; mode: rst -*- |
| 2 | ||
| 3 | .. _FE_ENABLE_HIGH_LNB_VOLTAGE: | |
| 4 | ||
| 5 | ******************************** | |
| 6 | ioctl FE_ENABLE_HIGH_LNB_VOLTAGE | |
| 7 | ******************************** | |
| 8 | ||
| 15e7d615 | 9 | Name |
| 586027ce | 10 | ==== |
| 5377d91f | 11 | |
| 586027ce | 12 | FE_ENABLE_HIGH_LNB_VOLTAGE - Select output DC level between normal LNBf voltages or higher LNBf - voltages. |
| 5377d91f | 13 | |
| 15e7d615 MCC |
14 | |
| 15 | Synopsis | |
| 5377d91f MH |
16 | ======== |
| 17 | ||
| b7e67f6c | 18 | .. cpp:function:: int ioctl( int fd, int request, unsigned int high ) |
| 5377d91f | 19 | |
| 586027ce | 20 | |
| 15e7d615 | 21 | Arguments |
| 5377d91f MH |
22 | ========= |
| 23 | ||
| 24 | ``fd`` | |
| 25 | File descriptor returned by :ref:`open() <frontend_f_open>`. | |
| 26 | ||
| 27 | ``request`` | |
| 28 | FE_ENABLE_HIGH_LNB_VOLTAGE | |
| 29 | ||
| 30 | ``high`` | |
| 31 | Valid flags: | |
| 32 | ||
| 33 | - 0 - normal 13V and 18V. | |
| 34 | ||
| 35 | - >0 - enables slightly higher voltages instead of 13/18V, in order | |
| 36 | to compensate for long antenna cables. | |
| 37 | ||
| 38 | ||
| 15e7d615 | 39 | Description |
| 5377d91f MH |
40 | =========== |
| 41 | ||
| 42 | Select output DC level between normal LNBf voltages or higher LNBf | |
| 43 | voltages between 0 (normal) or a value grater than 0 for higher | |
| 44 | voltages. | |
| 45 | ||
| 586027ce | 46 | |
| 15e7d615 | 47 | Return Value |
| 586027ce | 48 | ============ |
| 5377d91f MH |
49 | |
| 50 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 51 | appropriately. The generic error codes are described at the | |
| 52 | :ref:`Generic Error Codes <gen-errors>` chapter. |