mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
doc-rst: dmx_fcalls: improve man-like format
Parsing this file were causing lots of warnings with sphinx, due to the c function prototypes. Fix that by prepending them with .. cpp:function:: While here, use the same way we document man-like pages, at the V4L side of the book and add escapes to asterisks. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab
parent
ce0b746b9e
commit
94fff0dc53
@ -9,10 +9,11 @@ Demux Function Calls
|
||||
|
||||
.. _dmx_fopen:
|
||||
|
||||
open()
|
||||
======
|
||||
DVB demux open()
|
||||
================
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This system call, used with a device name of /dev/dvb/adapter0/demux0,
|
||||
allocates a new filter and returns a handle which can be used for
|
||||
@ -31,11 +32,13 @@ affect the semantics of the open() call itself. A device opened in
|
||||
blocking mode can later be put into non-blocking mode (and vice versa)
|
||||
using the F_SETFL command of the fcntl system call.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int open(const char *deviceName, int flags);
|
||||
.. c:function:: int open(const char *deviceName, int flags)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -46,7 +49,7 @@ PARAMETERS
|
||||
|
||||
- .. row 1
|
||||
|
||||
- const char *deviceName
|
||||
- const char \*deviceName
|
||||
|
||||
- Name of demux device.
|
||||
|
||||
@ -72,7 +75,8 @@ PARAMETERS
|
||||
- (blocking mode is the default)
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
Return Value
|
||||
------------
|
||||
|
||||
|
||||
|
||||
@ -109,19 +113,22 @@ RETURN VALUE
|
||||
|
||||
.. _dmx_fclose:
|
||||
|
||||
close()
|
||||
=======
|
||||
DVB demux close()
|
||||
=================
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This system call deactivates and deallocates a filter that was
|
||||
previously allocated via the open() call.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int close(int fd);
|
||||
.. c:function:: int close(int fd)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -137,7 +144,8 @@ PARAMETERS
|
||||
- File descriptor returned by a previous call to open().
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
Return Value
|
||||
------------
|
||||
|
||||
|
||||
|
||||
@ -156,21 +164,24 @@ RETURN VALUE
|
||||
|
||||
.. _dmx_fread:
|
||||
|
||||
read()
|
||||
======
|
||||
DVB demux read()
|
||||
================
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This system call returns filtered data, which might be section or PES
|
||||
data. The filtered data is transferred from the driver’s internal
|
||||
circular buffer to buf. The maximum amount of data to be transferred is
|
||||
implied by count.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
size_t read(int fd, void *buf, size_t count);
|
||||
.. c:function:: size_t read(int fd, void *buf, size_t count)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -187,7 +198,7 @@ PARAMETERS
|
||||
|
||||
- .. row 2
|
||||
|
||||
- void *buf
|
||||
- void \*buf
|
||||
|
||||
- Pointer to the buffer to be used for returned filtered data.
|
||||
|
||||
@ -198,7 +209,8 @@ PARAMETERS
|
||||
- Size of buf.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
Return Value
|
||||
------------
|
||||
|
||||
|
||||
|
||||
@ -250,16 +262,17 @@ RETURN VALUE
|
||||
- ``EFAULT``
|
||||
|
||||
- The driver failed to write to the callers buffer due to an invalid
|
||||
*buf pointer.
|
||||
\*buf pointer.
|
||||
|
||||
|
||||
|
||||
.. _dmx_fwrite:
|
||||
|
||||
write()
|
||||
=======
|
||||
DVB demux write()
|
||||
=================
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This system call is only provided by the logical device
|
||||
/dev/dvb/adapter0/dvr0, associated with the physical demux device that
|
||||
@ -268,11 +281,13 @@ digitally recorded Transport Stream. Matching filters have to be defined
|
||||
in the corresponding physical demux device, /dev/dvb/adapter0/demux0.
|
||||
The amount of data to be transferred is implied by count.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
ssize_t write(int fd, const void *buf, size_t count);
|
||||
.. c:function:: ssize_t write(int fd, const void *buf, size_t count)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -289,7 +304,7 @@ PARAMETERS
|
||||
|
||||
- .. row 2
|
||||
|
||||
- void *buf
|
||||
- void \*buf
|
||||
|
||||
- Pointer to the buffer containing the Transport Stream.
|
||||
|
||||
@ -300,7 +315,8 @@ PARAMETERS
|
||||
- Size of buf.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
Return Value
|
||||
------------
|
||||
|
||||
|
||||
|
||||
@ -340,16 +356,19 @@ RETURN VALUE
|
||||
DMX_START
|
||||
=========
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call is used to start the actual filtering operation defined
|
||||
via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl( int fd, int request = DMX_START);
|
||||
.. c:function:: int ioctl( int fd, int request = DMX_START)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -371,7 +390,8 @@ PARAMETERS
|
||||
- Equals DMX_START for this command.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -407,17 +427,20 @@ appropriately. The generic error codes are described at the
|
||||
DMX_STOP
|
||||
========
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call is used to stop the actual filtering operation defined
|
||||
via the ioctl calls DMX_SET_FILTER or DMX_SET_PES_FILTER and
|
||||
started via the DMX_START command.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl( int fd, int request = DMX_STOP);
|
||||
.. c:function:: int ioctl( int fd, int request = DMX_STOP)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -439,7 +462,8 @@ PARAMETERS
|
||||
- Equals DMX_STOP for this command.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -451,7 +475,8 @@ appropriately. The generic error codes are described at the
|
||||
DMX_SET_FILTER
|
||||
==============
|
||||
|
||||
DESCRIPTION
|
||||
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
|
||||
@ -464,12 +489,13 @@ 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.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl( int fd, int request = DMX_SET_FILTER, struct
|
||||
dmx_sct_filter_params *params);
|
||||
.. c:function:: int ioctl( int fd, int request = DMX_SET_FILTER, struct dmx_sct_filter_params *params)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -492,12 +518,13 @@ PARAMETERS
|
||||
|
||||
- .. row 3
|
||||
|
||||
- struct dmx_sct_filter_params *params
|
||||
- struct dmx_sct_filter_params \*params
|
||||
|
||||
- Pointer to structure containing filter parameters.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -509,19 +536,21 @@ appropriately. The generic error codes are described at the
|
||||
DMX_SET_PES_FILTER
|
||||
==================
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call sets up a PES filter according to the parameters
|
||||
provided. By a PES filter is meant a filter that is based just on the
|
||||
packet identifier (PID), i.e. no PES header or payload filtering
|
||||
capability is supported.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl( int fd, int request = DMX_SET_PES_FILTER, struct
|
||||
dmx_pes_filter_params *params);
|
||||
.. c:function:: int ioctl( int fd, int request = DMX_SET_PES_FILTER, struct dmx_pes_filter_params *params)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -544,12 +573,13 @@ PARAMETERS
|
||||
|
||||
- .. row 3
|
||||
|
||||
- struct dmx_pes_filter_params *params
|
||||
- struct dmx_pes_filter_params \*params
|
||||
|
||||
- Pointer to structure containing filter parameters.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -578,19 +608,21 @@ appropriately. The generic error codes are described at the
|
||||
DMX_SET_BUFFER_SIZE
|
||||
===================
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call is used to set the size of the circular buffer used for
|
||||
filtered data. The default size is two maximum sized sections, i.e. if
|
||||
this function is not called a buffer size of 2 * 4096 bytes will be
|
||||
this function is not called a buffer size of 2 \* 4096 bytes will be
|
||||
used.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl( int fd, int request = DMX_SET_BUFFER_SIZE, unsigned long
|
||||
size);
|
||||
.. c:function:: int ioctl( int fd, int request = DMX_SET_BUFFER_SIZE, unsigned long size)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -618,7 +650,8 @@ PARAMETERS
|
||||
- Size of circular buffer.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -630,7 +663,8 @@ appropriately. The generic error codes are described at the
|
||||
DMX_GET_EVENT
|
||||
=============
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call returns an event if available. If an event is not
|
||||
available, the behavior depends on whether the device is in blocking or
|
||||
@ -638,12 +672,13 @@ non-blocking mode. In the latter case, the call fails immediately with
|
||||
errno set to ``EWOULDBLOCK``. In the former case, the call blocks until an
|
||||
event becomes available.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl( int fd, int request = DMX_GET_EVENT, struct dmx_event
|
||||
*ev);
|
||||
.. c:function:: int ioctl( int fd, int request = DMX_GET_EVENT, struct dmx_event *ev)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -666,12 +701,13 @@ PARAMETERS
|
||||
|
||||
- .. row 3
|
||||
|
||||
- struct dmx_event *ev
|
||||
- struct dmx_event \*ev
|
||||
|
||||
- Pointer to the location where the event is to be stored.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -697,7 +733,8 @@ appropriately. The generic error codes are described at the
|
||||
DMX_GET_STC
|
||||
===========
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call returns the current value of the system time counter
|
||||
(which is driven by a PES filter of type DMX_PES_PCR). Some hardware
|
||||
@ -706,11 +743,13 @@ num field of stc before the ioctl (range 0...n). The result is returned
|
||||
in form of a ratio with a 64 bit numerator and a 32 bit denominator, so
|
||||
the real 90kHz STC value is stc->stc / stc->base .
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl( int fd, int request = DMX_GET_STC, struct dmx_stc *stc);
|
||||
.. c:function:: int ioctl( int fd, int request = DMX_GET_STC, struct dmx_stc *stc)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -733,12 +772,13 @@ PARAMETERS
|
||||
|
||||
- .. row 3
|
||||
|
||||
- struct dmx_stc *stc
|
||||
- struct dmx_stc \*stc
|
||||
|
||||
- Pointer to the location where the stc is to be stored.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -764,15 +804,18 @@ appropriately. The generic error codes are described at the
|
||||
DMX_GET_PES_PIDS
|
||||
================
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl is undocumented. Documentation is welcome.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl(fd, int request = DMX_GET_PES_PIDS, __u16[5]);
|
||||
.. c:function:: int ioctl(fd, int request = DMX_GET_PES_PIDS, __u16[5])
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -800,7 +843,8 @@ PARAMETERS
|
||||
- Undocumented.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -812,15 +856,18 @@ appropriately. The generic error codes are described at the
|
||||
DMX_GET_CAPS
|
||||
============
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl is undocumented. Documentation is welcome.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl(fd, int request = DMX_GET_CAPS, dmx_caps_t *);
|
||||
.. c:function:: int ioctl(fd, int request = DMX_GET_CAPS, dmx_caps_t *)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -848,7 +895,8 @@ PARAMETERS
|
||||
- Undocumented.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -860,15 +908,18 @@ appropriately. The generic error codes are described at the
|
||||
DMX_SET_SOURCE
|
||||
==============
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl is undocumented. Documentation is welcome.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl(fd, int request = DMX_SET_SOURCE, dmx_source_t *);
|
||||
.. c:function:: int ioctl(fd, int request = DMX_SET_SOURCE, dmx_source_t *)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -896,7 +947,8 @@ PARAMETERS
|
||||
- Undocumented.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -908,17 +960,20 @@ appropriately. The generic error codes are described at the
|
||||
DMX_ADD_PID
|
||||
===========
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call allows to add multiple PIDs to a transport stream filter
|
||||
previously set up with DMX_SET_PES_FILTER and output equal to
|
||||
DMX_OUT_TSDEMUX_TAP.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl(fd, int request = DMX_ADD_PID, __u16 *);
|
||||
.. c:function:: int ioctl(fd, int request = DMX_ADD_PID, __u16 *)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -946,7 +1001,8 @@ PARAMETERS
|
||||
- PID number to be filtered.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
@ -958,18 +1014,21 @@ appropriately. The generic error codes are described at the
|
||||
DMX_REMOVE_PID
|
||||
==============
|
||||
|
||||
DESCRIPTION
|
||||
Description
|
||||
-----------
|
||||
|
||||
This ioctl call allows to remove a PID when multiple PIDs are set on a
|
||||
transport stream filter, e. g. a filter previously set up with output
|
||||
equal to DMX_OUT_TSDEMUX_TAP, created via either
|
||||
DMX_SET_PES_FILTER or DMX_ADD_PID.
|
||||
|
||||
SYNOPSIS
|
||||
Synopsis
|
||||
--------
|
||||
|
||||
int ioctl(fd, int request = DMX_REMOVE_PID, __u16 *);
|
||||
.. c:function:: int ioctl(fd, int request = DMX_REMOVE_PID, __u16 *)
|
||||
|
||||
PARAMETERS
|
||||
Arguments
|
||||
----------
|
||||
|
||||
|
||||
|
||||
@ -997,7 +1056,8 @@ PARAMETERS
|
||||
- PID of the PES filter to be removed.
|
||||
|
||||
|
||||
RETURN VALUE
|
||||
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
|
||||
|
||||
Loading…
Reference in New Issue
Block a user