Input: docs - convert input.txt into ReST format

This file require minimum adjustments to be a valid ReST.

Do it, in order to be able to parse it with Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/input/input.txt

-			  Linux Input drivers v1.0
-	       (c) 1999-2001 Vojtech Pavlik <vojtech@ucw.cz>
-			     Sponsored by SuSE
-----------------------------------------------------------------------------
-
-0. Disclaimer
-~~~~~~~~~~~~~
-  This program is free software; you can redistribute it and/or modify it
+.. include:: <isonum.txt>
+
+===================
+Linux Input drivers
+===================
+
+:Copyright: |copy| 1999-2001 Vojtech Pavlik <vojtech@ucw.cz> - Sponsored by SuSE
+
+Disclaimer
+==========
+
+This program is free software; you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the Free
 Software Foundation; either version 2 of the License, or (at your option)
 any later version.
 
-  This program is distributed in the hope that it will be useful, but
+This program is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 more details.
 
-  You should have received a copy of the GNU General Public License along
+You should have received a copy of the GNU General Public License along
 with this program; if not, write to the Free Software Foundation, Inc., 59
 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-  Should you need to contact me, the author, you can do so either by e-mail
+Should you need to contact me, the author, you can do so either by e-mail
 - mail your message to <vojtech@ucw.cz>, or by paper mail: Vojtech Pavlik,
 Simunkova 1594, Prague 8, 182 00 Czech Republic
 
-  For your convenience, the GNU General Public License version 2 is included
+For your convenience, the GNU General Public License version 2 is included
 in the package: See the file COPYING.
 
-1. Introduction
-~~~~~~~~~~~~~~~
-  This is a collection of drivers that is designed to support all input
+Introduction
+============
+
+This is a collection of drivers that is designed to support all input
 devices under Linux. While it is currently used only on for USB input
 devices, future use (say 2.5/2.6) is expected to expand to replace
 most of the existing input system, which is why it lives in
 drivers/input/ instead of drivers/usb/.
 
-  The centre of the input drivers is the input module, which must be
+The centre of the input drivers is the input module, which must be
 loaded before any other of the input modules - it serves as a way of
 communication between two groups of modules:
 
-1.1 Device drivers
-~~~~~~~~~~~~~~~~~~
-  These modules talk to the hardware (for example via USB), and provide
+Device drivers
+--------------
+
+These modules talk to the hardware (for example via USB), and provide
 events (keystrokes, mouse movements) to the input module.
 
-1.2 Event handlers
-~~~~~~~~~~~~~~~~~~
-  These modules get events from input and pass them where needed via
+Event handlers
+--------------
+
+These modules get events from input and pass them where needed via
 various interfaces - keystrokes to the kernel, mouse movements via a
 simulated PS/2 interface to GPM and X and so on.
 
-2. Simple Usage
-~~~~~~~~~~~~~~~
-  For the most usual configuration, with one USB mouse and one USB keyboard,
+Simple Usage
+============
+
+For the most usual configuration, with one USB mouse and one USB keyboard,
 you'll have to load the following modules (or have them built in to the
-kernel):
+kernel)::
 
 	input
 	mousedev
@@ -62,24 +70,25 @@ kernel):
 	uhci_hcd or ohci_hcd or ehci_hcd
 	usbhid
 
-  After this, the USB keyboard will work straight away, and the USB mouse
-will be available as a character device on major 13, minor 63:
+After this, the USB keyboard will work straight away, and the USB mouse
+will be available as a character device on major 13, minor 63::
 
 	crw-r--r--   1 root     root      13,  63 Mar 28 22:45 mice
 
-  This device has to be created.
-  The commands to create it by hand are:
+This device has to be created.
+
+The commands to create it by hand are::
 
 	cd /dev
 	mkdir input
 	mknod input/mice c 13 63
 
-  After that you have to point GPM (the textmode mouse cut&paste tool) and
-XFree to this device to use it - GPM should be called like:
+After that you have to point GPM (the textmode mouse cut&paste tool) and
+XFree to this device to use it - GPM should be called like::
 
 	gpm -t ps2 -m /dev/input/mice
 
-  And in X:
+And in X::
 
 	Section "Pointer"
 	    Protocol    "ImPS/2"
@@ -87,97 +96,107 @@ XFree to this device to use it - GPM should be called like:
 	    ZAxisMapping 4 5
 	EndSection
 
-  When you do all of the above, you can use your USB mouse and keyboard.
+When you do all of the above, you can use your USB mouse and keyboard.
 
-3. Detailed Description
-~~~~~~~~~~~~~~~~~~~~~~~
-3.1 Device drivers
-~~~~~~~~~~~~~~~~~~
-  Device drivers are the modules that generate events. The events are
+Detailed Description
+====================
+
+Device drivers
+--------------
+
+Device drivers are the modules that generate events. The events are
 however not useful without being handled, so you also will need to use some
 of the modules from section 3.2.
 
-3.1.1 usbhid
-~~~~~~~~~~~~
-  usbhid is the largest and most complex driver of the whole suite. It
+usbhid
+~~~~~~
+
+usbhid is the largest and most complex driver of the whole suite. It
 handles all HID devices, and because there is a very wide variety of them,
 and because the USB HID specification isn't simple, it needs to be this big.
 
-  Currently, it handles USB mice, joysticks, gamepads, steering wheels
+Currently, it handles USB mice, joysticks, gamepads, steering wheels
 keyboards, trackballs and digitizers.
 
- However, USB uses HID also for monitor controls, speaker controls, UPSs,
+However, USB uses HID also for monitor controls, speaker controls, UPSs,
 LCDs and many other purposes.
 
- The monitor and speaker controls should be easy to add to the hid/input
+The monitor and speaker controls should be easy to add to the hid/input
 interface, but for the UPSs and LCDs it doesn't make much sense. For this,
 the hiddev interface was designed. See Documentation/hid/hiddev.txt
 for more information about it.
 
-  The usage of the usbhid module is very simple, it takes no parameters,
+The usage of the usbhid module is very simple, it takes no parameters,
 detects everything automatically and when a HID device is inserted, it
 detects it appropriately.
 
-  However, because the devices vary wildly, you might happen to have a
+However, because the devices vary wildly, you might happen to have a
 device that doesn't work well. In that case #define DEBUG at the beginning
 of hid-core.c and send me the syslog traces.
 
-3.1.2 usbmouse
-~~~~~~~~~~~~~~
-  For embedded systems, for mice with broken HID descriptors and just any
+usbmouse
+~~~~~~~~
+
+For embedded systems, for mice with broken HID descriptors and just any
 other use when the big usbhid wouldn't be a good choice, there is the
 usbmouse driver. It handles USB mice only. It uses a simpler HIDBP
 protocol. This also means the mice must support this simpler protocol. Not
 all do. If you don't have any strong reason to use this module, use usbhid
 instead.
 
-3.1.3 usbkbd
-~~~~~~~~~~~~
-  Much like usbmouse, this module talks to keyboards with a simplified
+usbkbd
+~~~~~~
+
+Much like usbmouse, this module talks to keyboards with a simplified
 HIDBP protocol. It's smaller, but doesn't support any extra special keys.
 Use usbhid instead if there isn't any special reason to use this.
 
-3.1.4 wacom
-~~~~~~~~~~~
-  This is a driver for Wacom Graphire and Intuos tablets. Not for Wacom
+wacom
+~~~~~
+
+This is a driver for Wacom Graphire and Intuos tablets. Not for Wacom
 PenPartner, that one is handled by the HID driver. Although the Intuos and
 Graphire tablets claim that they are HID tablets as well, they are not and
 thus need this specific driver.
 
-3.1.5 iforce
-~~~~~~~~~~~~
-  A driver for I-Force joysticks and wheels, both over USB and RS232. 
+iforce
+~~~~~~
+
+A driver for I-Force joysticks and wheels, both over USB and RS232.
 It includes ForceFeedback support now, even though Immersion
 Corp. considers the protocol a trade secret and won't disclose a word
 about it.
 
-3.2 Event handlers
-~~~~~~~~~~~~~~~~~~
-  Event handlers distribute the events from the devices to userland and
+Event handlers
+--------------
+
+Event handlers distribute the events from the devices to userland and
 kernel, as needed.
 
-3.2.1 keybdev
-~~~~~~~~~~~~~
-  keybdev is currently a rather ugly hack that translates the input
+keybdev
+~~~~~~~
+
+keybdev is currently a rather ugly hack that translates the input
 events into architecture-specific keyboard raw mode (Xlated AT Set2 on
 x86), and passes them into the handle_scancode function of the
 keyboard.c module. This works well enough on all architectures that
 keybdev can generate rawmode on, other architectures can be added to
 it.
 
-  The right way would be to pass the events to keyboard.c directly,
+The right way would be to pass the events to keyboard.c directly,
 best if keyboard.c would itself be an event handler. This is done in
 the input patch, available on the webpage mentioned below.
 
-3.2.2 mousedev
-~~~~~~~~~~~~~~
-  mousedev is also a hack to make programs that use mouse input
+mousedev
+~~~~~~~~
+
+mousedev is also a hack to make programs that use mouse input
 work. It takes events from either mice or digitizers/tablets and makes
 a PS/2-style (a la /dev/psaux) mouse device available to the
 userland. Ideally, the programs could use a more reasonable interface,
 for example evdev
 
-  Mousedev devices in /dev/input (as shown above) are:
+Mousedev devices in /dev/input (as shown above) are::
 
 	crw-r--r--   1 root     root      13,  32 Mar 28 22:45 mouse0
 	crw-r--r--   1 root     root      13,  33 Mar 29 00:41 mouse1
@@ -188,31 +207,32 @@ for example evdev
 	crw-r--r--   1 root     root      13,  62 Apr  1 10:50 mouse30
 	crw-r--r--   1 root     root      13,  63 Apr  1 10:50 mice
 
-Each 'mouse' device is assigned to a single mouse or digitizer, except
-the last one - 'mice'. This single character device is shared by all
+Each ``mouse`` device is assigned to a single mouse or digitizer, except
+the last one - ``mice``. This single character device is shared by all
 mice and digitizers, and even if none are connected, the device is
 present.  This is useful for hotplugging USB mice, so that programs
 can open the device even when no mice are present.
 
-  CONFIG_INPUT_MOUSEDEV_SCREEN_[XY] in the kernel configuration are
+CONFIG_INPUT_MOUSEDEV_SCREEN_[XY] in the kernel configuration are
 the size of your screen (in pixels) in XFree86. This is needed if you
 want to use your digitizer in X, because its movement is sent to X
 via a virtual PS/2 mouse and thus needs to be scaled
 accordingly. These values won't be used if you use a mouse only.
 
-  Mousedev will generate either PS/2, ImPS/2 (Microsoft IntelliMouse) or
+Mousedev will generate either PS/2, ImPS/2 (Microsoft IntelliMouse) or
 ExplorerPS/2 (IntelliMouse Explorer) protocols, depending on what the
 program reading the data wishes. You can set GPM and X to any of
 these. You'll need ImPS/2 if you want to make use of a wheel on a USB
 mouse and ExplorerPS/2 if you want to use extra (up to 5) buttons.
 
-3.2.3 joydev
-~~~~~~~~~~~~
-  Joydev implements v0.x and v1.x Linux joystick api, much like
+joydev
+~~~~~~
+
+Joydev implements v0.x and v1.x Linux joystick api, much like
 drivers/char/joystick/joystick.c used to in earlier versions. See
 joystick-api.txt in the Documentation subdirectory for details.  As
 soon as any joystick is connected, it can be accessed in /dev/input
-on: 
+on::
 
 	crw-r--r--   1 root     root      13,   0 Apr  1 10:50 js0
 	crw-r--r--   1 root     root      13,   1 Apr  1 10:50 js1
@@ -222,19 +242,20 @@ on:
 
 And so on up to js31.
 
-3.2.4 evdev
-~~~~~~~~~~~
-  evdev is the generic input event interface. It passes the events
+evdev
+~~~~~
+
+evdev is the generic input event interface. It passes the events
 generated in the kernel straight to the program, with timestamps. The
 API is still evolving, but should be usable now. It's described in
 section 5.
 
-  This should be the way for GPM and X to get keyboard and mouse
+This should be the way for GPM and X to get keyboard and mouse
 events. It allows for multihead in X without any specific multihead
 kernel support. The event codes are the same on all architectures and
 are hardware independent.
 
-  The devices are in /dev/input:
+The devices are in /dev/input::
 
 	crw-r--r--   1 root     root      13,  64 Apr  1 10:49 event0
 	crw-r--r--   1 root     root      13,  65 Apr  1 10:50 event1
@@ -244,47 +265,48 @@ are hardware independent.
 
 And so on up to event31.
 
-4. Verifying if it works
-~~~~~~~~~~~~~~~~~~~~~~~~
-  Typing a couple keys on the keyboard should be enough to check that
+Verifying if it works
+=====================
+
+Typing a couple keys on the keyboard should be enough to check that
 a USB keyboard works and is correctly connected to the kernel keyboard
 driver.
 
-  Doing a "cat /dev/input/mouse0" (c, 13, 32) will verify that a mouse
+Doing a ``cat /dev/input/mouse0`` (c, 13, 32) will verify that a mouse
 is also emulated; characters should appear if you move it.
 
-  You can test the joystick emulation with the 'jstest' utility,
+You can test the joystick emulation with the ``jstest`` utility,
 available in the joystick package (see Documentation/input/joystick.txt).
 
-  You can test the event devices with the 'evtest' utility available
+You can test the event devices with the ``evtest`` utility available
 in the LinuxConsole project CVS archive (see the URL below).
 
-5. Event interface
-~~~~~~~~~~~~~~~~~~
-  Should you want to add event device support into any application (X, gpm,
+Event interface
+===============
+
+Should you want to add event device support into any application (X, gpm,
 svgalib ...) I <vojtech@ucw.cz> will be happy to provide you any help I
 can. Here goes a description of the current state of things, which is going
 to be extended, but not changed incompatibly as time goes:
 
-  You can use blocking and nonblocking reads, also select() on the
+You can use blocking and nonblocking reads, also select() on the
 /dev/input/eventX devices, and you'll always get a whole number of input
-events on a read. Their layout is:
+events on a read. Their layout is::
 
-struct input_event {
+    struct input_event {
 	    struct timeval time;
 	    unsigned short type;
 	    unsigned short code;
 	    unsigned int value;
-};
+    };
 
-  'time' is the timestamp, it returns the time at which the event happened.
+``time`` is the timestamp, it returns the time at which the event happened.
 Type is for example EV_REL for relative moment, EV_KEY for a keypress or
 release. More types are defined in include/uapi/linux/input-event-codes.h.
 
-  'code' is event code, for example REL_X or KEY_BACKSPACE, again a complete
+``code`` is event code, for example REL_X or KEY_BACKSPACE, again a complete
 list is in include/uapi/linux/input-event-codes.h.
 
-  'value' is the value the event carries. Either a relative change for
+``value`` is the value the event carries. Either a relative change for
 EV_REL, absolute new value for EV_ABS (joysticks ...), or 0 for EV_KEY for
 release, 1 for keypress and 2 for autorepeat.
-