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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-12 12:49:06 +0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-12 15:42:49 +0300
commit5413b648d057103d58cf531e8e109b259b0abea0 (patch)
tree3c300b6e63982a6c0d057b5d5c4867d606198fd5 /Documentation/media/uapi/rc
parent76e23479f9b772f1419df691c30e2f5e4ac92cb0 (diff)
downloadlinux-5413b648d057103d58cf531e8e109b259b0abea0.tar.xz
[media] doc-rst: document LIRC_GET_LENGTH ioctl
Put documentation for this ioctl on its own page. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'Documentation/media/uapi/rc')
-rw-r--r--Documentation/media/uapi/rc/lirc-get-length.rst45
-rw-r--r--Documentation/media/uapi/rc/lirc_device_interface.rst1
-rw-r--r--Documentation/media/uapi/rc/lirc_ioctl.rst11
3 files changed, 46 insertions, 11 deletions
diff --git a/Documentation/media/uapi/rc/lirc-get-length.rst b/Documentation/media/uapi/rc/lirc-get-length.rst
new file mode 100644
index 000000000000..d11c3d3f2c06
--- /dev/null
+++ b/Documentation/media/uapi/rc/lirc-get-length.rst
@@ -0,0 +1,45 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. _lirc_get_length:
+
+*********************
+ioctl LIRC_GET_LENGTH
+*********************
+
+Name
+====
+
+LIRC_GET_LENGTH - Retrieves the code length in bits.
+
+Synopsis
+========
+
+.. cpp:function:: int ioctl( int fd, int request, __u32 *length )
+
+Arguments
+=========
+
+``fd``
+ File descriptor returned by open().
+
+``request``
+ LIRC_GET_LENGTH
+
+``length``
+ length, in bits
+
+
+Description
+===========
+
+Retrieves the code length in bits (only for ``LIRC-MODE-LIRCCODE``).
+Reads on the device must be done in blocks matching the bit count.
+The bit could should be rounded up so that it matches full bytes.
+
+
+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 197173f9ece5..f8a619e233c0 100644
--- a/Documentation/media/uapi/rc/lirc_device_interface.rst
+++ b/Documentation/media/uapi/rc/lirc_device_interface.rst
@@ -18,4 +18,5 @@ LIRC Device Interface
lirc-get-rec-resolution
lirc-set-send-duty-cycle
lirc-get-timeout
+ lirc-get-length
lirc_ioctl
diff --git a/Documentation/media/uapi/rc/lirc_ioctl.rst b/Documentation/media/uapi/rc/lirc_ioctl.rst
index 0a16659e9dad..93531c37fd27 100644
--- a/Documentation/media/uapi/rc/lirc_ioctl.rst
+++ b/Documentation/media/uapi/rc/lirc_ioctl.rst
@@ -46,17 +46,6 @@ device can rely on working with the default settings initially.
.. _lirc-request:
-I/O control requests
-====================
-
-.. _LIRC_GET_LENGTH:
-
-``LIRC_GET_LENGTH``
-
- Retrieves the code length in bits (only for ``LIRC_MODE_LIRCCODE).``
- Reads on the device must be done in blocks matching the bit count.
- The bit could should be rounded up so that it matches full bytes.
-
.. _LIRC_SET_SEND_MODE:
.. _LIRC_SET_REC_MODE: