Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark titles;
- comment contents index;
- mark literal blocks;
- adjust identation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
---
Documentation/rfkill.txt | 43 ++++++++++++++++++++++++++-----------------
1 file changed, 26 insertions(+), 17 deletions(-)
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt
index 8c174063b3f0..a289285d2412 100644
--- a/Documentation/rfkill.txt
+++ b/Documentation/rfkill.txt
@@ -1,13 +1,13 @@
+===============================
rfkill - RF kill switch support
===============================
-1. Introduction
-2. Implementation details
-3. Kernel API
-4. Userspace support
+.. contents::
+ :depth: 2
-1. Introduction
+Introduction
+============
The rfkill subsystem provides a generic interface to disabling any radio
transmitter in the system. When a transmitter is blocked, it shall not
@@ -21,17 +21,24 @@ aircraft.
The rfkill subsystem has a concept of "hard" and "soft" block, which
differ little in their meaning (block == transmitters off) but rather in
whether they can be changed or not:
- - hard block: read-only radio block that cannot be overridden by software
- - soft block: writable radio block (need not be readable) that is set by
- the system software.
+
+ - hard block
+ read-only radio block that cannot be overridden by software
+
+ - soft block
+ writable radio block (need not be readable) that is set by
+ the system software.
The rfkill subsystem has two parameters, rfkill.default_state and
-rfkill.master_switch_mode, which are documented in admin-guide/kernel-parameters.rst.
+rfkill.master_switch_mode, which are documented in
+admin-guide/kernel-parameters.rst.
-2. Implementation details
+Implementation details
+======================
The rfkill subsystem is composed of three main components:
+
* the rfkill core,
* the deprecated rfkill-input module (an input layer handler, being
replaced by userspace policy code) and
@@ -55,7 +62,8 @@ use the return value of rfkill_set_hw_state() unless the hardware actually
keeps track of soft and hard block separately.
-3. Kernel API
+Kernel API
+==========
Drivers for radio transmitters normally implement an rfkill driver.
@@ -69,7 +77,7 @@ For some platforms, it is possible that the hardware state changes during
suspend/hibernation, in which case it will be necessary to update the rfkill
core with the current state is at resume time.
-To create an rfkill driver, driver's Kconfig needs to have
+To create an rfkill driver, driver's Kconfig needs to have::
depends on RFKILL || !RFKILL
@@ -87,7 +95,8 @@ RFKill provides per-switch LED triggers, which can be used to drive LEDs
according to the switch state (LED_FULL when blocked, LED_OFF otherwise).
-5. Userspace support
+Userspace support
+=================
The recommended userspace interface to use is /dev/rfkill, which is a misc
character device that allows userspace to obtain and set the state of rfkill
@@ -112,11 +121,11 @@ rfkill core framework.
Additionally, each rfkill device is registered in sysfs and emits uevents.
rfkill devices issue uevents (with an action of "change"), with the following
-environment variables set:
+environment variables set::
-RFKILL_NAME
-RFKILL_STATE
-RFKILL_TYPE
+ RFKILL_NAME
+ RFKILL_STATE
+ RFKILL_TYPE
The contents of these variables corresponds to the "name", "state" and
"type" sysfs files explained above.
--
2.9.4
--
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