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 | ||
| 9 | *man FE_DISEQC_SEND_BURST(2)* | |
| 10 | ||
| 11 | Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection. | |
| 12 | ||
| 13 | ||
| 14 | Synopsis | |
| 15 | ======== | |
| 16 | ||
| 17 | .. c:function:: int ioctl( int fd, int request, enum fe_sec_mini_cmd *tone ) | |
| 18 | ||
| 19 | Arguments | |
| 20 | ========= | |
| 21 | ||
| 22 | ``fd`` | |
| 23 | File descriptor returned by :ref:`open() <frontend_f_open>`. | |
| 24 | ||
| 25 | ``request`` | |
| 26 | FE_DISEQC_SEND_BURST | |
| 27 | ||
| 28 | ``tone`` | |
| 29 | pointer to enum :ref:`fe_sec_mini_cmd <fe-sec-mini-cmd>` | |
| 30 | ||
| 31 | ||
| 32 | Description | |
| 33 | =========== | |
| 34 | ||
| 35 | This ioctl is used to set the generation of a 22kHz tone burst for mini | |
| 36 | DiSEqC satellite selection for 2x1 switches. This call requires | |
| 37 | read/write permissions. | |
| 38 | ||
| 39 | It provides support for what's specified at | |
| 40 | `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>`__ | |
| 41 | ||
| 42 | RETURN VALUE | |
| 43 | ||
| 44 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 45 | appropriately. The generic error codes are described at the | |
| 46 | :ref:`Generic Error Codes <gen-errors>` chapter. | |
| 47 | ||
| 48 | ||
| 49 | .. _fe-sec-mini-cmd-t: | |
| 50 | ||
| 51 | enum fe_sec_mini_cmd | |
| 52 | ==================== | |
| 53 | ||
| 54 | ||
| 55 | .. _fe-sec-mini-cmd: | |
| 56 | ||
| 57 | .. flat-table:: enum fe_sec_mini_cmd | |
| 58 | :header-rows: 1 | |
| 59 | :stub-columns: 0 | |
| 60 | ||
| 61 | ||
| 62 | - .. row 1 | |
| 63 | ||
| 64 | - ID | |
| 65 | ||
| 66 | - Description | |
| 67 | ||
| 68 | - .. row 2 | |
| 69 | ||
| 70 | - .. _`SEC-MINI-A`: | |
| 71 | ||
| 0579e6e3 | 72 | ``SEC_MINI_A`` |
| 5377d91f MH |
73 | |
| 74 | - Sends a mini-DiSEqC 22kHz '0' Tone Burst to select satellite-A | |
| 75 | ||
| 76 | - .. row 3 | |
| 77 | ||
| 78 | - .. _`SEC-MINI-B`: | |
| 79 | ||
| 0579e6e3 | 80 | ``SEC_MINI_B`` |
| 5377d91f MH |
81 | |
| 82 | - Sends a mini-DiSEqC 22kHz '1' Data Burst to select satellite-B |