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author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 14:40:06 (GMT) |
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committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-08 14:59:40 (GMT) |
commit | 60c2820d0f6d3497975b6488e2599f8f611d8b95 (patch) | |
tree | b3b03707c6438ea9b99cc57e847ebf517f968ab1 /Documentation/media/uapi/dvb/dmx-set-filter.rst | |
parent | a97369b5e21ea9b8b5fef7c0f4f48bbe60c07ca3 (diff) | |
download | linux-60c2820d0f6d3497975b6488e2599f8f611d8b95.tar.xz |
doc_rst: rename the media Sphinx suff to Documentation/media
The name of the subsystem is "media", and not "linux_tv". Also,
as we plan to add other stuff there in the future, let's
rename also the media uAPI book to media_uapi, to make it
clearer.
No functional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media/uapi/dvb/dmx-set-filter.rst')
-rw-r--r-- | Documentation/media/uapi/dvb/dmx-set-filter.rst | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/Documentation/media/uapi/dvb/dmx-set-filter.rst b/Documentation/media/uapi/dvb/dmx-set-filter.rst new file mode 100644 index 0000000..8c929fa --- /dev/null +++ b/Documentation/media/uapi/dvb/dmx-set-filter.rst @@ -0,0 +1,68 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _DMX_SET_FILTER: + +============== +DMX_SET_FILTER +============== + +Name +---- + +DMX_SET_FILTER + + +Synopsis +-------- + +.. cpp:function:: int ioctl( int fd, int request = DMX_SET_FILTER, struct dmx_sct_filter_params *params) + + +Arguments +--------- + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + + - .. row 1 + + - int fd + + - File descriptor returned by a previous call to open(). + + - .. row 2 + + - int request + + - Equals DMX_SET_FILTER for this command. + + - .. row 3 + + - struct dmx_sct_filter_params \*params + + - Pointer to structure containing filter parameters. + + +Description +----------- + +This ioctl call sets up a filter according to the filter and mask +parameters provided. A timeout may be defined stating number of seconds +to wait for a section to be loaded. A value of 0 means that no timeout +should be applied. Finally there is a flag field where it is possible to +state whether a section should be CRC-checked, whether the filter should +be a ”one-shot” filter, i.e. if the filtering operation should be +stopped after the first section is received, and whether the filtering +operation should be started immediately (without waiting for a +DMX_START ioctl call). If a filter was previously set-up, this filter +will be canceled, and the receive buffer will be flushed. + + +Return Value +------------ + +On success 0 is returned, on error -1 and the ``errno`` variable is set +appropriately. The generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. |