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media: lirc: lirc mode ioctls deal with current mode

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The ioctl change the current mode or return the current mode; they
do not tell you which modes are possible (use the lirc features
ioctl for that).

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Sean Young 2017-12-28 17:03:22 -05:00 committed by Mauro Carvalho Chehab
parent 02d742f4b2
commit e3cd973429
2 changed files with 62 additions and 18 deletions
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42
Documentation/media/uapi/rc/lirc-get-rec-mode.rst
View File

@ -10,15 +10,15 @@ ioctls LIRC_GET_REC_MODE and LIRC_SET_REC_MODE
Name
====
LIRC_GET_REC_MODE/LIRC_SET_REC_MODE - Get/set supported receive modes.
LIRC_GET_REC_MODE/LIRC_SET_REC_MODE - Get/set current receive mode.
Synopsis
========
.. c:function:: int ioctl( int fd, LIRC_GET_REC_MODE, __u32 rx_modes)
.. c:function:: int ioctl( int fd, LIRC_GET_REC_MODE, __u32 *mode)
:name: LIRC_GET_REC_MODE
.. c:function:: int ioctl( int fd, LIRC_SET_REC_MODE, __u32 rx_modes)
.. c:function:: int ioctl( int fd, LIRC_SET_REC_MODE, __u32 *mode)
:name: LIRC_SET_REC_MODE
Arguments
@ -27,19 +27,41 @@ Arguments
``fd``
File descriptor returned by open().
``rx_modes``
Bitmask with the supported transmit modes.
``mode``
Mode used for receive.
Description
===========
Get/set supported receive modes. Only :ref:`LIRC_MODE_MODE2 <lirc-mode-mode2>`
and :ref:`LIRC_MODE_SCANCODE <lirc-mode-scancode>` are supported.
Get and set the current receive mode. Only
:ref:`LIRC_MODE_MODE2 <lirc-mode-mode2>` and
:ref:`LIRC_MODE_SCANCODE <lirc-mode-scancode>` are supported.
Use :ref:`lirc_get_features` to find out which modes the driver supports.
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.
.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``ENODEV``
- Device not available.
- .. row 2
- ``ENOTTY``
- Device does not support receiving.
- .. row 3
- ``EINVAL``
- Invalid mode or invalid mode for this device.

38
Documentation/media/uapi/rc/lirc-get-send-mode.rst
View File

@ -10,15 +10,15 @@ ioctls LIRC_GET_SEND_MODE and LIRC_SET_SEND_MODE
Name
====
LIRC_GET_SEND_MODE/LIRC_SET_SEND_MODE - Get/set supported transmit mode.
LIRC_GET_SEND_MODE/LIRC_SET_SEND_MODE - Get/set current transmit mode.
Synopsis
========
.. c:function:: int ioctl( int fd, LIRC_GET_SEND_MODE, __u32 *tx_modes )
.. c:function:: int ioctl( int fd, LIRC_GET_SEND_MODE, __u32 *mode )
:name: LIRC_GET_SEND_MODE
.. c:function:: int ioctl( int fd, LIRC_SET_SEND_MODE, __u32 *tx_modes )
.. c:function:: int ioctl( int fd, LIRC_SET_SEND_MODE, __u32 *mode )
:name: LIRC_SET_SEND_MODE
Arguments
@ -27,8 +27,8 @@ Arguments
``fd``
File descriptor returned by open().
``tx_modes``
Bitmask with the supported transmit modes.
``mode``
The mode used for transmitting.
Description
@ -44,6 +44,28 @@ modes the driver supports.
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.
.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- ``ENODEV``
- Device not available.
- .. row 2
- ``ENOTTY``
- Device does not support transmitting.
- .. row 3
- ``EINVAL``
- Invalid mode or invalid mode for this device.