projects / deliverable / linux.git / blame
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|---|---|---|
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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 | |
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14 | |
| 15 | Synopsis | |
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16 | ======== |
| 17 | ||
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18 | .. c:function:: int ioctl( int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd *tone ) |
| 19 | :name: FE_DISEQC_SEND_BURST | |
| 5377d91f | 20 | |
| 586027ce | 21 | |
| 15e7d615 | 22 | Arguments |
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23 | ========= |
| 24 | ||
| 25 | ``fd`` | |
| 26 | File descriptor returned by :ref:`open() <frontend_f_open>`. | |
| 27 | ||
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28 | ``tone`` |
| 29 | pointer to enum :ref:`fe_sec_mini_cmd <fe-sec-mini-cmd>` | |
| 30 | ||
| 31 | ||
| 15e7d615 | 32 | Description |
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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 | ||
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42 | .. _fe-sec-mini-cmd-t: |
| 43 | ||
| 44 | enum fe_sec_mini_cmd | |
| 45 | ==================== | |
| 46 | ||
| 5377d91f MH |
47 | .. _fe-sec-mini-cmd: |
| 48 | ||
| 49 | .. flat-table:: enum fe_sec_mini_cmd | |
| 50 | :header-rows: 1 | |
| 51 | :stub-columns: 0 | |
| 52 | ||
| 53 | ||
| 54 | - .. row 1 | |
| 55 | ||
| 56 | - ID | |
| 57 | ||
| 58 | - Description | |
| 59 | ||
| 60 | - .. row 2 | |
| 61 | ||
| 6aeb3f67 | 62 | - .. _SEC-MINI-A: |
| 5377d91f | 63 | |
| 0579e6e3 | 64 | ``SEC_MINI_A`` |
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65 | |
| 66 | - Sends a mini-DiSEqC 22kHz '0' Tone Burst to select satellite-A | |
| 67 | ||
| 68 | - .. row 3 | |
| 69 | ||
| 6aeb3f67 | 70 | - .. _SEC-MINI-B: |
| 5377d91f | 71 | |
| 0579e6e3 | 72 | ``SEC_MINI_B`` |
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73 | |
| 74 | - Sends a mini-DiSEqC 22kHz '1' Data Burst to select satellite-B | |
| fc833980 | 75 | |
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76 | |
| 77 | Return Value | |
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78 | ============ |
| 79 | ||
| 80 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 81 | appropriately. The generic error codes are described at the | |
| 82 | :ref:`Generic Error Codes <gen-errors>` chapter. |