xref: /OK3568_Linux_fs/kernel/Documentation/userspace-api/media/dvb/dmx-remove-pid.rst (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2*4882a593Smuzhiyun.. c:namespace:: DTV.dmx
3*4882a593Smuzhiyun
4*4882a593Smuzhiyun.. _DMX_REMOVE_PID:
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun==============
7*4882a593SmuzhiyunDMX_REMOVE_PID
8*4882a593Smuzhiyun==============
9*4882a593Smuzhiyun
10*4882a593SmuzhiyunName
11*4882a593Smuzhiyun----
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunDMX_REMOVE_PID
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunSynopsis
16*4882a593Smuzhiyun--------
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun.. c:macro:: DMX_REMOVE_PID
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun``int ioctl(fd, DMX_REMOVE_PID, __u16 *pid)``
21*4882a593Smuzhiyun
22*4882a593SmuzhiyunArguments
23*4882a593Smuzhiyun---------
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun``fd``
26*4882a593Smuzhiyun    File descriptor returned by :c:func:`open()`.
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun``pid``
29*4882a593Smuzhiyun    PID of the PES filter to be removed.
30*4882a593Smuzhiyun
31*4882a593SmuzhiyunDescription
32*4882a593Smuzhiyun-----------
33*4882a593Smuzhiyun
34*4882a593SmuzhiyunThis ioctl call allows to remove a PID when multiple PIDs are set on a
35*4882a593Smuzhiyuntransport stream filter, e. g. a filter previously set up with output
36*4882a593Smuzhiyunequal to :c:type:`DMX_OUT_TSDEMUX_TAP <dmx_output>`, created via either
37*4882a593Smuzhiyun:ref:`DMX_SET_PES_FILTER` or :ref:`DMX_ADD_PID`.
38*4882a593Smuzhiyun
39*4882a593SmuzhiyunReturn Value
40*4882a593Smuzhiyun------------
41*4882a593Smuzhiyun
42*4882a593SmuzhiyunOn success 0 is returned.
43*4882a593Smuzhiyun
44*4882a593SmuzhiyunOn error -1 is returned, and the ``errno`` variable is set
45*4882a593Smuzhiyunappropriately.
46*4882a593Smuzhiyun
47*4882a593SmuzhiyunThe generic error codes are described at the
48*4882a593Smuzhiyun:ref:`Generic Error Codes <gen-errors>` chapter.
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