.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _cec-func-close:
cec-close - Close a cec device
-
Synopsis
========
#include <unistd.h>
-
.. c:function:: int close( int fd )
- :name: cec-close
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
-
+ File descriptor returned by :c:func:`open()`.
Description
===========
Closes the cec device. Resources associated with the file descriptor are
freed. The device configuration remain unchanged.
-
Return Value
============
-:c:func:`close() <cec-close>` returns 0 on success. On error, -1 is returned, and
+:c:func:`close()` returns 0 on success. On error, -1 is returned, and
``errno`` is set appropriately. Possible error codes are:
``EBADF``
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _cec-func-ioctl:
#include <sys/ioctl.h>
-
-.. c:function:: int ioctl( int fd, int request, void *argp )
- :name: cec-ioctl
+``int ioctl(int fd, int request, void *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``request``
CEC ioctl request code as defined in the cec.h header file, for
``argp``
Pointer to a request-specific structure.
-
Description
===========
-The :c:func:`ioctl() <cec-ioctl>` function manipulates cec device parameters. The
+The :c:func:`ioctl()` function manipulates cec device parameters. The
argument ``fd`` must be an open file descriptor.
The ioctl ``request`` code specifies the cec function to be called. It
requests, their respective function and parameters are specified in
:ref:`cec-user-func`.
-
Return Value
============
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _cec-func-open:
#include <fcntl.h>
-
.. c:function:: int open( const char *device_name, int flags )
- :name: cec-open
-
Arguments
=========
Other flags have no effect.
-
Description
===========
-To open a cec device applications call :c:func:`open() <cec-open>` with the
+To open a cec device applications call :c:func:`open()` with the
desired device name. The function has no side effects; the device
configuration remain unchanged.
configuration will result in an error, and ``errno`` will be set to
EBADF.
-
Return Value
============
-:c:func:`open() <cec-open>` returns the new file descriptor on success. On error,
+:c:func:`open()` returns the new file descriptor on success. On error,
-1 is returned, and ``errno`` is set appropriately. Possible error codes
include:
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _cec-func-poll:
cec-poll - Wait for some event on a file descriptor
-
Synopsis
========
#include <sys/poll.h>
-
.. c:function:: int poll( struct pollfd *ufds, unsigned int nfds, int timeout )
- :name: cec-poll
Arguments
=========
``timeout``
Timeout to wait for events
-
Description
===========
-With the :c:func:`poll() <cec-poll>` function applications can wait for CEC
+With the :c:func:`poll()` function applications can wait for CEC
events.
-On success :c:func:`poll() <cec-poll>` returns the number of file descriptors
+On success :c:func:`poll()` returns the number of file descriptors
that have been selected (that is, file descriptors for which the
``revents`` field of the respective struct :c:type:`pollfd`
is non-zero). CEC devices set the ``POLLIN`` and ``POLLRDNORM`` flags in
a value of zero, on failure it returns -1 and the ``errno`` variable is
set appropriately.
-For more details see the :c:func:`poll() <cec-poll>` manual page.
-
+For more details see the :c:func:`poll()` manual page.
Return Value
============
-On success, :c:func:`poll() <cec-poll>` returns the number structures which have
+On success, :c:func:`poll()` returns the number structures which have
non-zero ``revents`` fields, or zero if the call timed out. On error -1
is returned, and the ``errno`` variable is set appropriately:
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _CEC_ADAP_G_CAPS:
Synopsis
========
-.. c:function:: int ioctl( int fd, CEC_ADAP_G_CAPS, struct cec_caps *argp )
- :name: CEC_ADAP_G_CAPS
+.. c:macro:: CEC_ADAP_G_CAPS
+
+``int ioctl(int fd, CEC_ADAP_G_CAPS, struct cec_caps *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``argp``
-
Description
===========
- CEC Framework API version, formatted with the ``KERNEL_VERSION()``
macro.
-
.. tabularcolumns:: |p{4.4cm}|p{2.5cm}|p{10.6cm}|
.. _cec-capabilities:
..
.. Copyright 2019 Google LLC
..
+.. c:namespace:: CEC
+
.. _CEC_ADAP_G_CONNECTOR_INFO:
*******************************
Synopsis
========
-.. c:function:: int ioctl( int fd, CEC_ADAP_G_CONNECTOR_INFO, struct cec_connector_info *argp )
- :name: CEC_ADAP_G_CONNECTOR_INFO
+.. c:macro:: CEC_ADAP_G_CONNECTOR_INFO
+
+``int ioctl(int fd, CEC_ADAP_G_CONNECTOR_INFO, struct cec_connector_info *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``argp``
-
Description
===========
* - }
-
-
.. tabularcolumns:: |p{4.4cm}|p{2.5cm}|p{10.6cm}|
.. _connector-type:
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _CEC_ADAP_LOG_ADDRS:
.. _CEC_ADAP_G_LOG_ADDRS:
CEC_ADAP_G_LOG_ADDRS, CEC_ADAP_S_LOG_ADDRS - Get or set the logical addresses
-
Synopsis
========
-.. c:function:: int ioctl( int fd, CEC_ADAP_G_LOG_ADDRS, struct cec_log_addrs *argp )
- :name: CEC_ADAP_G_LOG_ADDRS
+.. c:macro:: CEC_ADAP_G_LOG_ADDRS
+
+``int ioctl(int fd, CEC_ADAP_G_LOG_ADDRS, struct cec_log_addrs *argp)``
+
+.. c:macro:: CEC_ADAP_S_LOG_ADDRS
-.. c:function:: int ioctl( int fd, CEC_ADAP_S_LOG_ADDRS, struct cec_log_addrs *argp )
- :name: CEC_ADAP_S_LOG_ADDRS
+``int ioctl(int fd, CEC_ADAP_S_LOG_ADDRS, struct cec_log_addrs *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``argp``
Pointer to struct :c:type:`cec_log_addrs`.
give the CEC framework more information about the device type, even
though the framework won't use it directly in the CEC message.
-
.. tabularcolumns:: |p{7.8cm}|p{1.0cm}|p{8.7cm}|
.. _cec-log-addrs-flags:
All other messages are ignored.
-
.. tabularcolumns:: |p{7.8cm}|p{1.0cm}|p{8.7cm}|
.. _cec-versions:
- 6
- CEC version according to the HDMI 2.0 standard.
-
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
.. _cec-prim-dev-types:
- 7
- Use for a video processor device.
-
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
.. _cec-log-addr-types:
Control).
-
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
.. _cec-all-dev-types-flags:
- This supports the CEC Switch or Video Processing type.
-
Return Value
============
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _CEC_ADAP_PHYS_ADDR:
.. _CEC_ADAP_G_PHYS_ADDR:
CEC_ADAP_G_PHYS_ADDR, CEC_ADAP_S_PHYS_ADDR - Get or set the physical address
-
Synopsis
========
-.. c:function:: int ioctl( int fd, CEC_ADAP_G_PHYS_ADDR, __u16 *argp )
- :name: CEC_ADAP_G_PHYS_ADDR
+.. c:macro:: CEC_ADAP_G_PHYS_ADDR
+
+``int ioctl(int fd, CEC_ADAP_G_PHYS_ADDR, __u16 *argp)``
-.. c:function:: int ioctl( int fd, CEC_ADAP_S_PHYS_ADDR, __u16 *argp )
- :name: CEC_ADAP_S_PHYS_ADDR
+.. c:macro:: CEC_ADAP_S_PHYS_ADDR
+
+``int ioctl(int fd, CEC_ADAP_S_PHYS_ADDR, __u16 *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``argp``
Pointer to the CEC address.
different physical address of the form a.0.0.0 that the sources will
read out and use as their physical address.
-
Return Value
============
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _CEC_DQEVENT:
CEC_DQEVENT - Dequeue a CEC event
-
Synopsis
========
-.. c:function:: int ioctl( int fd, CEC_DQEVENT, struct cec_event *argp )
- :name: CEC_DQEVENT
+.. c:macro:: CEC_DQEVENT
+
+``int ioctl(int fd, CEC_DQEVENT, struct cec_event *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``argp``
-
Description
===========
the HDMI driver is still configuring the device or because the HDMI
device was unbound.
-
.. c:type:: cec_event_lost_msgs
.. tabularcolumns:: |p{1.0cm}|p{2.0cm}|p{14.5cm}|
replied to within a second according to the CEC specification,
this is more than enough.
-
.. tabularcolumns:: |p{1.0cm}|p{4.4cm}|p{2.5cm}|p{9.6cm}|
.. c:type:: cec_event
* - }
-
-
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
.. _cec-events:
if the 5V is high, then an initial event will be generated for that
filehandle.
-
.. tabularcolumns:: |p{6.0cm}|p{0.6cm}|p{10.9cm}|
.. _cec-event-flags:
This is an indication that the application cannot keep up.
-
Return Value
============
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _CEC_MODE:
.. _CEC_G_MODE:
Synopsis
========
-.. c:function:: int ioctl( int fd, CEC_G_MODE, __u32 *argp )
- :name: CEC_G_MODE
+.. c:macro:: CEC_G_MODE
-.. c:function:: int ioctl( int fd, CEC_S_MODE, __u32 *argp )
- :name: CEC_S_MODE
+``int ioctl(int fd, CEC_G_MODE, __u32 *argp)``
+
+.. c:macro:: CEC_S_MODE
+
+``int ioctl(int fd, CEC_S_MODE, __u32 *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``argp``
Pointer to CEC mode.
then an attempt to become one will return the ``EBUSY`` error code
error.
-
Available follower modes are:
.. tabularcolumns:: |p{6.6cm}|p{0.9cm}|p{10.0cm}|
the process has the ``CAP_NET_ADMIN`` capability. If that is not
set, then the ``EPERM`` error code is returned.
-
Core message processing details:
.. tabularcolumns:: |p{6.6cm}|p{10.9cm}|
and then just pass the message on to the follower(s).
-
Return Value
============
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: CEC
.. _CEC_TRANSMIT:
.. _CEC_RECEIVE:
CEC_RECEIVE, CEC_TRANSMIT - Receive or transmit a CEC message
-
Synopsis
========
-.. c:function:: int ioctl( int fd, CEC_RECEIVE, struct cec_msg \*argp )
- :name: CEC_RECEIVE
+.. c:macro:: CEC_RECEIVE
+
+``int ioctl(int fd, CEC_RECEIVE, struct cec_msg *argp)``
-.. c:function:: int ioctl( int fd, CEC_TRANSMIT, struct cec_msg \*argp )
- :name: CEC_TRANSMIT
+.. c:macro:: CEC_TRANSMIT
+
+``int ioctl(int fd, CEC_TRANSMIT, struct cec_msg *argp)``
Arguments
=========
``fd``
- File descriptor returned by :c:func:`open() <cec-open>`.
+ File descriptor returned by :c:func:`open()`.
``argp``
Pointer to struct cec_msg.
supports this, otherwise it is always 0. This counter is only
valid if the :ref:`CEC_TX_STATUS_ERROR <CEC-TX-STATUS-ERROR>` status bit is set.
-
.. tabularcolumns:: |p{6.2cm}|p{1.0cm}|p{10.3cm}|
.. _cec-msg-flags:
capability. If that is not set, then the ``EPERM`` error code is
returned.
-
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
.. _cec-tx-status:
- The transmit timed out. This should not normally happen and this
indicates a driver problem.
-
.. tabularcolumns:: |p{5.6cm}|p{0.9cm}|p{11.0cm}|
.. _cec-rx-status:
reply was interrupted.
-
Return Value
============
projects / linux.git / commitdiff