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Diffstat (limited to 'Documentation/media/uapi/dvb/ca-get-msg.rst')
| -rw-r--r-- | Documentation/media/uapi/dvb/ca-get-msg.rst | 46 |
1 files changed, 12 insertions, 34 deletions
diff --git a/Documentation/media/uapi/dvb/ca-get-msg.rst b/Documentation/media/uapi/dvb/ca-get-msg.rst index 121588da3ef1..ceeda623ce93 100644 --- a/Documentation/media/uapi/dvb/ca-get-msg.rst +++ b/Documentation/media/uapi/dvb/ca-get-msg.rst @@ -28,47 +28,25 @@ Arguments ``msg`` Pointer to struct :c:type:`ca_msg`. +Description +----------- -.. c:type:: struct ca_msg - -.. flat-table:: struct ca_msg - :header-rows: 1 - :stub-columns: 0 - - - - - type - - name - - description - - - - unsigned int - - index - - - - - - - unsigned int - - type - - +Receives a message via a CI CA module. - - - - unsigned int - - length - - +.. note:: - - - - unsigned char - - msg[256] - - + Please notice that, on most drivers, this is done by reading from + the /dev/adapter?/ca? device node. -Description ------------ +Return Value +------------ -.. note:: This ioctl is undocumented. Documentation is welcome. +On success 0 is returned. -Return Value ------------- +On error -1 is returned, and the ``errno`` variable is set +appropriately. -On success 0 is returned, on error -1 and the ``errno`` variable is set -appropriately. The generic error codes are described at the +Generic error codes are described at the :ref:`Generic Error Codes <gen-errors>` chapter. |