projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5377d91f MH |
1 | .. -*- coding: utf-8; mode: rst -*- |
| 2 | ||
| 3 | .. _FE_DISEQC_SEND_BURST: | |
| 4 | ||
| 5 | ************************** | |
| 6 | ioctl FE_DISEQC_SEND_BURST | |
| 7 | ************************** | |
| 8 | ||
| 15e7d615 | 9 | Name |
| 586027ce | 10 | ==== |
| 5377d91f | 11 | |
| 586027ce | 12 | FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection. |
| 5377d91f | 13 | |
| 15e7d615 MCC |
14 | |
| 15 | Synopsis | |
| 5377d91f MH |
16 | ======== |
| 17 | ||
| 1b81f010 | 18 | .. c:function:: int ioctl( int fd, int request, enum fe_sec_mini_cmd *tone ) |
| 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_DISEQC_SEND_BURST | |
| 29 | ||
| 30 | ``tone`` | |
| 31 | pointer to enum :ref:`fe_sec_mini_cmd <fe-sec-mini-cmd>` | |
| 32 | ||
| 33 | ||
| 15e7d615 | 34 | Description |
| 5377d91f MH |
35 | =========== |
| 36 | ||
| 37 | This ioctl is used to set the generation of a 22kHz tone burst for mini | |
| 38 | DiSEqC satellite selection for 2x1 switches. This call requires | |
| 39 | read/write permissions. | |
| 40 | ||
| 41 | It provides support for what's specified at | |
| 42 | `Digital Satellite Equipment Control (DiSEqC) - Simple "ToneBurst" Detection Circuit specification. <http://www.eutelsat.com/files/contributed/satellites/pdf/Diseqc/associated%20docs/simple_tone_burst_detec.pdf>`__ | |
| 43 | ||
| 5377d91f MH |
44 | .. _fe-sec-mini-cmd-t: |
| 45 | ||
| 46 | enum fe_sec_mini_cmd | |
| 47 | ==================== | |
| 48 | ||
| 5377d91f MH |
49 | .. _fe-sec-mini-cmd: |
| 50 | ||
| 51 | .. flat-table:: enum fe_sec_mini_cmd | |
| 52 | :header-rows: 1 | |
| 53 | :stub-columns: 0 | |
| 54 | ||
| 55 | ||
| 56 | - .. row 1 | |
| 57 | ||
| 58 | - ID | |
| 59 | ||
| 60 | - Description | |
| 61 | ||
| 62 | - .. row 2 | |
| 63 | ||
| 6aeb3f67 | 64 | - .. _SEC-MINI-A: |
| 5377d91f | 65 | |
| 0579e6e3 | 66 | ``SEC_MINI_A`` |
| 5377d91f MH |
67 | |
| 68 | - Sends a mini-DiSEqC 22kHz '0' Tone Burst to select satellite-A | |
| 69 | ||
| 70 | - .. row 3 | |
| 71 | ||
| 6aeb3f67 | 72 | - .. _SEC-MINI-B: |
| 5377d91f | 73 | |
| 0579e6e3 | 74 | ``SEC_MINI_B`` |
| 5377d91f MH |
75 | |
| 76 | - Sends a mini-DiSEqC 22kHz '1' Data Burst to select satellite-B | |
| fc833980 | 77 | |
| 15e7d615 MCC |
78 | |
| 79 | Return Value | |
| fc833980 MCC |
80 | ============ |
| 81 | ||
| 82 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 83 | appropriately. The generic error codes are described at the | |
| 84 | :ref:`Generic Error Codes <gen-errors>` chapter. |