projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
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1 | .. -*- coding: utf-8; mode: rst -*- |
| 2 | ||
| 3 | .. _CA_GET_DESCR_INFO: | |
| 4 | ||
| 586027ce | 5 | ================= |
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6 | CA_GET_DESCR_INFO |
| 7 | ================= | |
| 8 | ||
| 15e7d615 | 9 | Name |
| 586027ce | 10 | ---- |
| 47d23e36 | 11 | |
| 586027ce | 12 | CA_GET_DESCR_INFO |
| 47d23e36 | 13 | |
| 15e7d615 MCC |
14 | |
| 15 | Synopsis | |
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16 | -------- |
| 17 | ||
| 189d7243 | 18 | .. c:function:: int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc) |
| cf8076c3 | 19 | :name: CA_GET_DESCR_INFO |
| 47d23e36 | 20 | |
| 15e7d615 | 21 | Arguments |
| 586027ce | 22 | --------- |
| 47d23e36 | 23 | |
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24 | ``fd`` |
| 25 | File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`. | |
| 47d23e36 | 26 | |
| cf8076c3 | 27 | ``desc`` |
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28 | Pointer to struct :c:type:`ca_descr_info`. |
| 29 | ||
| 30 | .. c:type:: struct ca_descr_info | |
| 31 | ||
| 32 | .. flat-table:: struct ca_descr_info | |
| 33 | :header-rows: 1 | |
| 34 | :stub-columns: 0 | |
| 35 | ||
| 36 | - | |
| 37 | - type | |
| 38 | - name | |
| 39 | - description | |
| 40 | ||
| 41 | - | |
| 42 | - unsigned int | |
| 43 | - num | |
| 44 | - number of available descramblers (keys) | |
| 45 | - | |
| 46 | - unsigned int | |
| 47 | - type | |
| 48 | - type of supported scrambling system. Valid values are: | |
| 49 | ``CA_ECD``, ``CA_NDS`` and ``CA_DSS``. | |
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50 | |
| 51 | ||
| 15e7d615 | 52 | Description |
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53 | ----------- |
| 54 | ||
| cf8076c3 | 55 | .. note:: This ioctl is undocumented. Documentation is welcome. |
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56 | |
| 57 | ||
| 15e7d615 | 58 | Return Value |
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59 | ------------ |
| 60 | ||
| 61 | On success 0 is returned, on error -1 and the ``errno`` variable is set | |
| 62 | appropriately. The generic error codes are described at the | |
| 63 | :ref:`Generic Error Codes <gen-errors>` chapter. |