Improve the documentation for this ioctl, adding it to
a separate file, in order to look like the rest of the
book, and to later allow to generate a man page for this
ioctl.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
---
.../media/uapi/rc/lirc-get-rec-resolution.rst | 49 ++++++++++++++++++++++
.../media/uapi/rc/lirc_device_interface.rst | 1 +
Documentation/media/uapi/rc/lirc_ioctl.rst | 10 -----
3 files changed, 50 insertions(+), 10 deletions(-)
create mode 100644 Documentation/media/uapi/rc/lirc-get-rec-resolution.rst
diff --git a/Documentation/media/uapi/rc/lirc-get-rec-resolution.rst b/Documentation/media/uapi/rc/lirc-get-rec-resolution.rst
new file mode 100644
index 000000000000..6ef1723878b4
--- /dev/null
+++ b/Documentation/media/uapi/rc/lirc-get-rec-resolution.rst
@@ -0,0 +1,49 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _lirc_get_rec_resolution:
+
+*****************************
+ioctl LIRC_GET_REC_RESOLUTION
+*****************************
+
+Name
+====
+
+LIRC_GET_REC_RESOLUTION - Obtain the value of receive resolution, in microseconds.
+
+Synopsis
+========
+
+.. cpp:function:: int ioctl( int fd, int request, __u32 *microseconds)
+
+Arguments
+=========
+
+``fd``
+ File descriptor returned by open().
+
+``request``
+ LIRC_GET_REC_RESOLUTION
+
+``microseconds``
+ Resolution, in microseconds.
+
+
+Description
+===========
+
+Some receivers have maximum resolution which is defined by internal
+sample rate or data format limitations. E.g. it's common that
+signals can only be reported in 50 microsecond steps.
+
+This ioctl returns the integer value with such resolution, with can be
+used by userspace applications like lircd to automatically adjust the
+tolerance 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
+:ref:`Generic Error Codes <gen-errors>` chapter.
diff --git a/Documentation/media/uapi/rc/lirc_device_interface.rst b/Documentation/media/uapi/rc/lirc_device_interface.rst
index 34044b0c8f9c..532f4e92d1e9 100644
--- a/Documentation/media/uapi/rc/lirc_device_interface.rst
+++ b/Documentation/media/uapi/rc/lirc_device_interface.rst
@@ -15,4 +15,5 @@ LIRC Device Interface
lirc-get-features
lirc-get-send-mode
lirc-get-rec-mode
+ lirc-get-rec-resolution
lirc_ioctl
diff --git a/Documentation/media/uapi/rc/lirc_ioctl.rst b/Documentation/media/uapi/rc/lirc_ioctl.rst
index 4656e30a5b5a..347b86d368b4 100644
--- a/Documentation/media/uapi/rc/lirc_ioctl.rst
+++ b/Documentation/media/uapi/rc/lirc_ioctl.rst
@@ -58,16 +58,6 @@ I/O control requests
could be used to switch off carrier generation in the future, so
these values should be reserved.
-.. _LIRC_GET_REC_RESOLUTION:
-
-``LIRC_GET_REC_RESOLUTION``
-
- Some receiver have maximum resolution which is defined by internal
- sample rate or data format limitations. E.g. it's common that
- signals can only be reported in 50 microsecond steps. This integer
- value is used by lircd to automatically adjust the aeps tolerance
- value in the lircd config file.
-
.. _LIRC_GET_MIN_TIMEOUT:
.. _LIRC_GET_MAX_TIMEOUT:
--
2.7.4
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