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authorMattias Andrée <maandree@operamail.com>2015-11-27 00:47:09 +0100
committerMattias Andrée <maandree@operamail.com>2015-11-27 00:47:09 +0100
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parentadd shell tab-completion (diff)
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Signed-off-by: Mattias Andrée <maandree@operamail.com>
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+\input texinfo @c -*-texinfo-*-
+
+@c %**start of header
+@setfilename adjbacklight.info
+@settitle adjbacklight
+@afourpaper
+@documentencoding UTF-8
+@documentlanguage en
+@finalout
+@c %**end of header
+
+
+@c @defindex op
+@c @synindex op vr
+@c @synindex cp pg
+
+
+@copying
+This manual is for @command{adjbacklight}.
+
+Copyright @copyright{} 2013, 2014 Mattias Andrée (maandree@@member.fsf.org)
+
+@quotation
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.3 or
+any later version published by the Free Software Foundation; with no
+Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
+Texts. A copy of the license is included in the section entitled
+``GNU Free Documentation License''.
+@end quotation
+@end copying
+
+
+@ifnottex
+@node Top
+@top adjbacklight
+@insertcopying
+@end ifnottex
+
+@titlepage
+@title adjbacklight 7.1
+@subtitle Convenient method for adjusting the backlight on your portable computer.
+@author Mattias Andrée, maandree@@member.fsf.org
+@page
+@vskip 0pt plus 1filll
+@insertcopying
+@page
+@*@*
+@center And sometimes the portable computers' adjustment keys arn't even wired to the hardware…
+@end titlepage
+
+@contents
+
+
+@menu
+* Overview:: Overview of @command{adjbacklight}
+* Invoking:: How to start @command{adjbacklight}
+* Using:: How to use @command{adjbacklight}
+* Behind the scenes:: How @command{adjbacklight} works
+* License of adjbacklight:: Summary of the license of the program
+* GNU General Public License:: The license of the program
+* GNU Free Documentation License:: The license of this manual
+* Concept index:: Concept index
+@end menu
+
+
+
+@node Overview
+@chapter Overview
+@cindex overview
+@cindex description
+
+@command{adjbacklight} is convient method for adjusting the backlight on your
+portable computer. Depending on your computer, the details of @command{adjbacklight}
+differs.
+
+For some computers program will adjust the same parameters as the keys on your
+keyboard, one other computers this program will adjust an independent parameter
+allowing more detailed adjustment and may not be affected by the battery status
+change. One some computers the keys for the suns does not do anything and is
+expected to be binded by the OS, for thoses computers this may be the best choice
+if you are in the TTY.
+
+@command{adjbacklight} allows 0.5 % precision, assuming that the firmware allows
+at least that. If you want higher precision, it is simple to modify the source
+code. Just run @code{sed -i s/200/400/g src/adjbacklight.c}, if you want
+0.25 % precision.
+
+@cindex root
+@cindex video
+@cindex permissions
+To use @command{adjbacklight} you must either be root or be a member of the
+group `video'. The `video' membership requirement is artificial so you can rip
+that out from the code if you prefer, but the effective user must be `root'
+(EUID = 0) otherwise you will not have permission to use files in
+@file{/sys/class/backlight} unless you make your initialisation
+system give you access.
+
+
+
+@node Invoking
+@chapter Invoking
+@cindex invoking
+@cindex starting
+@cindex options
+@cindex arguments
+@cindex device
+@cindex selecting device
+@cindex interactive mode
+@cindex non-interactive mode
+@cindex @command{adjbacklight}
+@cindex @option{-c}
+@cindex @option{--copying}
+@cindex @option{--copyright}
+@cindex @option{-w}
+@cindex @option{--warranty}
+@cindex @option{-a}
+@cindex @option{--all}
+@cindex @option{-g}
+@cindex @option{--get}
+@cindex @option{-s}
+@cindex @option{--set}
+
+@command{adjbacklight} can be started with @option{-c}, @option{--copying} or
+@option{--copyright} for displaying copyright information, @option{-w} or
+@option{--warranty} for displaying a warranty disclaimer.
+
+To actually use the program, just execute @command{adjbacklight} without any
+arguments, or with @option{-a} or @option{--all} to not limit the devices to
+those that are not ACPI video devices. Alternatively you can list the devices
+either by full path or just the name in the directory @file{/sys/class/backlight}.
+
+If you do not want to run in interactive mode, you can use the option
+@option{-g} or @option{--get} to get the average backlight of all devices
+selected by the arguments (as in interactive mode), the value will be
+printed percents with no whitespace between the value and the percent,
+the value will be formated in the traditional computer format, only 0-9
+with one dot (.) for separation of the integer part and the decimal part
+(which will be two digits.) If you want to set the backlight there are
+a few ways to do this: @option{-s} or @option{--set} followed by a value
+or the value directly but with a prepending `=' if it does not start with
+`+' or `-'. This argument is formated similar to the value printed by
+@option{--get}, except it may end with zero, one, or two percent signed.
+`+' is used for increase in brightness, `-' for decrease. Zero percent
+signed is used for a raw value, one percent signed is used for a cooked
+value that is usable on all backlight devices, and two percent signed
+is used for a value relative to the current value.
+
+Assume the current backlight is 50 (25 %) on a device and the maximum is
+200. @code{+25} will set it to 75 (37,5 %) and @code{-25} will set it to
+25 (12,5 %). @code{+50%} will set it to 75 % (150), @code{-50%} would
+set it to -25 % (-50) but because that is not within the accepted value
+range it will be truncated to 0. @code{+100%%} will set it to 100 (50 %),
+that it 200 % of the current brightness, @code{-50%%} will set it to
+25 (12,5 %), that is 50 % of the current brightness. For the following
+formats the `=' is optional if @option{-s} or @option{--set} is used.
+@code{=150} will set the brightness to 150 (75 %), @code{=50%} will set
+it to 50 % (100), and @code{=200%%} will set it to 100 (50 %), that is
+200 % of the current brightness.
+
+
+
+@node Using
+@chapter Using
+@cindex interactive mode
+@cindex usage
+@cindex keyboard
+@cindex darken screen
+@cindex brighten screen
+@cindex quit
+@cindex exit
+@cindex close
+@cindex next screen
+
+When you run @command{adjbacklight} in interactive mode, the following
+keys are used to adjust the backlighting:
+
+The @kbd{left} and @kbd{down} arrow keys are used to darken the screen.
+The @kbd{right} and @kbd{up} arrow keys are used to brighten the screen.
+@kbd{q}, @kbd{enter} and @kbd{<control>d} continues to the next backlight
+controller, or if you are at the last one, exits the program.
+
+
+
+@node Behind the scenes
+@chapter Behind the scenes
+@cindex behind the scenes
+@cindex inner workings
+
+On normally configured Linux systems, the kernel mounts a virtual
+partition on @file{/sys}. If you have screens using backlight,
+you should find backlight device in @file{/sys/class/backlight}.
+These devices are directories containing control files which you
+can read the current values from or write to (perhaps using @command{echo})
+to modify the value. In a directory in @file{/sys/class/backlight}
+you will find @file{brightness} and @file{max_brightness}.
+Just read from @file{max_brightness} to get the maximum allowed integer
+value in @file{brightness}, the minimum value is 0.
+
+
+
+@node License of adjbacklight
+@appendix License of adjbacklight
+@flushleft
+adjbacklight – Convient method for adjusting the backlight on your portable computer
+
+Copyright © 2012, 2013, 2014 Mattias Andrée (maandree@@member.fsf.org)
+
+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 3 of the License, or
+(at your option) any later version.
+
+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 with this program. If not, see <http://www.gnu.org/licenses/>.
+@end flushleft
+
+@node GNU General Public License
+@appendix GNU General Public License
+@include gpl.texinfo
+
+@node GNU Free Documentation License
+@appendix GNU Free Documentation License
+@include fdl.texinfo
+
+@node Concept index
+@appendix Concept index
+@printindex cp
+
+@c @node Concept and program index
+@c @appendix Concept and program index
+@c @printindex pg
+
+@c @node Variable and option index
+@c @appendix Variable and option index
+@c @printindex vr
+
+
+@bye
+
diff --git a/doc/info/fdl.texinfo b/doc/info/fdl.texinfo
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+@c The GNU Free Documentation License.
+@center Version 1.3, 3 November 2008
+
+@c This file is intended to be included within another document,
+@c hence no sectioning command or @node.
+
+@display
+Copyright @copyright{} 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
+@uref{http://fsf.org/}
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+Everyone is permitted to copy and distribute verbatim copies
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+@end display
+
+@enumerate 0
+@item
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+``Dedications'', or ``History'', the requirement (section 4) to Preserve
+its Title (section 1) will typically require changing the actual
+title.
+
+@item
+TERMINATION
+
+You may not copy, modify, sublicense, or distribute the Document
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense, or distribute it is void, and
+will automatically terminate your rights under this License.
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
+terminates your license, and (b) permanently, if the copyright holder
+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, receipt of a copy of some or all of the same material does
+not give you any rights to use it.
+
+@item
+FUTURE REVISIONS OF THIS LICENSE
+
+The Free Software Foundation may publish new, revised versions
+of the GNU Free Documentation License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns. See
+@uref{http://www.gnu.org/copyleft/}.
+
+Each version of the License is given a distinguishing version number.
+If the Document specifies that a particular numbered version of this
+License ``or any later version'' applies to it, you have the option of
+following the terms and conditions either of that specified version or
+of any later version that has been published (not as a draft) by the
+Free Software Foundation. If the Document does not specify a version
+number of this License, you may choose any version ever published (not
+as a draft) by the Free Software Foundation. If the Document
+specifies that a proxy can decide which future versions of this
+License can be used, that proxy's public statement of acceptance of a
+version permanently authorizes you to choose that version for the
+Document.
+
+@item
+RELICENSING
+
+``Massive Multiauthor Collaboration Site'' (or ``MMC Site'') means any
+World Wide Web server that publishes copyrightable works and also
+provides prominent facilities for anybody to edit those works. A
+public wiki that anybody can edit is an example of such a server. A
+``Massive Multiauthor Collaboration'' (or ``MMC'') contained in the
+site means any set of copyrightable works thus published on the MMC
+site.
+
+``CC-BY-SA'' means the Creative Commons Attribution-Share Alike 3.0
+license published by Creative Commons Corporation, a not-for-profit
+corporation with a principal place of business in San Francisco,
+California, as well as future copyleft versions of that license
+published by that same organization.
+
+``Incorporate'' means to publish or republish a Document, in whole or
+in part, as part of another Document.
+
+An MMC is ``eligible for relicensing'' if it is licensed under this
+License, and if all works that were first published under this License
+somewhere other than this MMC, and subsequently incorporated in whole
+or in part into the MMC, (1) had no cover texts or invariant sections,
+and (2) were thus incorporated prior to November 1, 2008.
+
+The operator of an MMC Site may republish an MMC contained in the site
+under CC-BY-SA on the same site at any time before August 1, 2009,
+provided the MMC is eligible for relicensing.
+
+@end enumerate
+
+@page
+@heading ADDENDUM: How to use this License for your documents
+
+To use this License in a document you have written, include a copy of
+the License in the document and put the following copyright and
+license notices just after the title page:
+
+@smallexample
+@group
+ Copyright (C) @var{year} @var{your name}.
+ Permission is granted to copy, distribute and/or modify this document
+ under the terms of the GNU Free Documentation License, Version 1.3
+ or any later version published by the Free Software Foundation;
+ with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+ Texts. A copy of the license is included in the section entitled ``GNU
+ Free Documentation License''.
+@end group
+@end smallexample
+
+If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
+replace the ``with@dots{}Texts.''@: line with this:
+
+@smallexample
+@group
+ with the Invariant Sections being @var{list their titles}, with
+ the Front-Cover Texts being @var{list}, and with the Back-Cover Texts
+ being @var{list}.
+@end group
+@end smallexample
+
+If you have Invariant Sections without Cover Texts, or some other
+combination of the three, merge those two alternatives to suit the
+situation.
+
+If your document contains nontrivial examples of program code, we
+recommend releasing these examples in parallel under your choice of
+free software license, such as the GNU General Public License,
+to permit their use in free software.
+
+@c Local Variables:
+@c ispell-local-pdict: "ispell-dict"
+@c End:
diff --git a/doc/info/gpl.texinfo b/doc/info/gpl.texinfo
new file mode 100644
index 0000000..97a17e1
--- /dev/null
+++ b/doc/info/gpl.texinfo
@@ -0,0 +1,717 @@
+@c The GNU General Public License.
+@center Version 3, 29 June 2007
+
+@c This file is intended to be included within another document,
+@c hence no sectioning command or @node.
+
+@display
+Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/}
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+@end display
+
+@heading Preamble
+
+The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom
+to share and change all versions of a program---to make sure it remains
+free software for all its users. We, the Free Software Foundation,
+use the GNU General Public License for most of our software; it
+applies also to any other work released this way by its authors. You
+can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you
+have certain responsibilities if you distribute copies of the
+software, or if you modify it: responsibilities to respect the freedom
+of others.
+
+For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too,
+receive or can get the source code. And you must show them these
+terms so they know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the
+manufacturer can do so. This is fundamentally incompatible with the
+aim of protecting users' freedom to change the software. The
+systematic pattern of such abuse occurs in the area of products for
+individuals to use, which is precisely where it is most unacceptable.
+Therefore, we have designed this version of the GPL to prohibit the
+practice for those products. If such problems arise substantially in
+other domains, we stand ready to extend this provision to those
+domains in future versions of the GPL, as needed to protect the
+freedom of users.
+
+Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish
+to avoid the special danger that patents applied to a free program
+could make it effectively proprietary. To prevent this, the GPL
+assures that patents cannot be used to render the program non-free.
+
+The precise terms and conditions for copying, distribution and
+modification follow.
+
+@heading TERMS AND CONDITIONS
+
+@enumerate 0
+@item Definitions.
+
+``This License'' refers to version 3 of the GNU General Public License.
+
+``Copyright'' also means copyright-like laws that apply to other kinds
+of works, such as semiconductor masks.
+
+``The Program'' refers to any copyrightable work licensed under this
+License. Each licensee is addressed as ``you''. ``Licensees'' and
+``recipients'' may be individuals or organizations.
+
+To ``modify'' a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of
+an exact copy. The resulting work is called a ``modified version'' of
+the earlier work or a work ``based on'' the earlier work.
+
+A ``covered work'' means either the unmodified Program or a work based
+on the Program.
+
+To ``propagate'' a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+To ``convey'' a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user
+through a computer network, with no transfer of a copy, is not
+conveying.
+
+An interactive user interface displays ``Appropriate Legal Notices'' to
+the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+@item Source Code.
+
+The ``source code'' for a work means the preferred form of the work for
+making modifications to it. ``Object code'' means any non-source form
+of a work.
+
+A ``Standard Interface'' means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+The ``System Libraries'' of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+``Major Component'', in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+The ``Corresponding Source'' for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+The Corresponding Source need not include anything that users can
+regenerate automatically from other parts of the Corresponding Source.
+
+The Corresponding Source for a work in source code form is that same
+work.
+
+@item Basic Permissions.
+
+All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+You may make, run and propagate covered works that you do not convey,
+without conditions so long as your license otherwise remains in force.
+You may convey covered works to others for the sole purpose of having
+them make modifications exclusively for you, or provide you with
+facilities for running those works, provided that you comply with the
+terms of this License in conveying all material for which you do not
+control copyright. Those thus making or running the covered works for
+you must do so exclusively on your behalf, under your direction and
+control, on terms that prohibit them from making any copies of your
+copyrighted material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under the
+conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+@item Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such
+circumvention is effected by exercising rights under this License with
+respect to the covered work, and you disclaim any intention to limit
+operation or modification of the work as a means of enforcing, against
+the work's users, your or third parties' legal rights to forbid
+circumvention of technological measures.
+
+@item Conveying Verbatim Copies.
+
+You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+@item Conveying Modified Source Versions.
+
+You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these
+conditions:
+
+@enumerate a
+@item
+The work must carry prominent notices stating that you modified it,
+and giving a relevant date.
+
+@item
+The work must carry prominent notices stating that it is released
+under this License and any conditions added under section 7. This
+requirement modifies the requirement in section 4 to ``keep intact all
+notices''.
+
+@item
+You must license the entire work, as a whole, under this License to
+anyone who comes into possession of a copy. This License will
+therefore apply, along with any applicable section 7 additional terms,
+to the whole of the work, and all its parts, regardless of how they
+are packaged. This License gives no permission to license the work in
+any other way, but it does not invalidate such permission if you have
+separately received it.
+
+@item
+If the work has interactive user interfaces, each must display
+Appropriate Legal Notices; however, if the Program has interactive
+interfaces that do not display Appropriate Legal Notices, your work
+need not make them do so.
+@end enumerate
+
+A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+``aggregate'' if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+@item Conveying Non-Source Forms.
+
+You may convey a covered work in object code form under the terms of
+sections 4 and 5, provided that you also convey the machine-readable
+Corresponding Source under the terms of this License, in one of these
+ways:
+
+@enumerate a
+@item
+Convey the object code in, or embodied in, a physical product
+(including a physical distribution medium), accompanied by the
+Corresponding Source fixed on a durable physical medium customarily
+used for software interchange.
+
+@item
+Convey the object code in, or embodied in, a physical product
+(including a physical distribution medium), accompanied by a written
+offer, valid for at least three years and valid for as long as you
+offer spare parts or customer support for that product model, to give
+anyone who possesses the object code either (1) a copy of the
+Corresponding Source for all the software in the product that is
+covered by this License, on a durable physical medium customarily used
+for software interchange, for a price no more than your reasonable
+cost of physically performing this conveying of source, or (2) access
+to copy the Corresponding Source from a network server at no charge.
+
+@item
+Convey individual copies of the object code with a copy of the written
+offer to provide the Corresponding Source. This alternative is
+allowed only occasionally and noncommercially, and only if you
+received the object code with such an offer, in accord with subsection
+6b.
+
+@item
+Convey the object code by offering access from a designated place
+(gratis or for a charge), and offer equivalent access to the
+Corresponding Source in the same way through the same place at no
+further charge. You need not require recipients to copy the
+Corresponding Source along with the object code. If the place to copy
+the object code is a network server, the Corresponding Source may be
+on a different server (operated by you or a third party) that supports
+equivalent copying facilities, provided you maintain clear directions
+next to the object code saying where to find the Corresponding Source.
+Regardless of what server hosts the Corresponding Source, you remain
+obligated to ensure that it is available for as long as needed to
+satisfy these requirements.
+
+@item
+Convey the object code using peer-to-peer transmission, provided you
+inform other peers where the object code and Corresponding Source of
+the work are being offered to the general public at no charge under
+subsection 6d.
+
+@end enumerate
+
+A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+A ``User Product'' is either (1) a ``consumer product'', which means any
+tangible personal property which is normally used for personal,
+family, or household purposes, or (2) anything designed or sold for
+incorporation into a dwelling. In determining whether a product is a
+consumer product, doubtful cases shall be resolved in favor of
+coverage. For a particular product received by a particular user,
+``normally used'' refers to a typical or common use of that class of
+product, regardless of the status of the particular user or of the way
+in which the particular user actually uses, or expects or is expected
+to use, the product. A product is a consumer product regardless of
+whether the product has substantial commercial, industrial or
+non-consumer uses, unless such uses represent the only significant
+mode of use of the product.
+
+``Installation Information'' for a User Product means any methods,
+procedures, authorization keys, or other information required to
+install and execute modified versions of a covered work in that User
+Product from a modified version of its Corresponding Source. The
+information must suffice to ensure that the continued functioning of
+the modified object code is in no case prevented or interfered with
+solely because modification has been made.
+
+If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or
+updates for a work that has been modified or installed by the
+recipient, or for the User Product in which it has been modified or
+installed. Access to a network may be denied when the modification
+itself materially and adversely affects the operation of the network
+or violates the rules and protocols for communication across the
+network.
+
+Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+@item Additional Terms.
+
+``Additional permissions'' are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders
+of that material) supplement the terms of this License with terms:
+
+@enumerate a
+@item
+Disclaiming warranty or limiting liability differently from the terms
+of sections 15 and 16 of this License; or
+
+@item
+Requiring preservation of specified reasonable legal notices or author
+attributions in that material or in the Appropriate Legal Notices
+displayed by works containing it; or
+
+@item
+Prohibiting misrepresentation of the origin of that material, or
+requiring that modified versions of such material be marked in
+reasonable ways as different from the original version; or
+
+@item
+Limiting the use for publicity purposes of names of licensors or
+authors of the material; or
+
+@item
+Declining to grant rights under trademark law for use of some trade
+names, trademarks, or service marks; or
+
+@item
+Requiring indemnification of licensors and authors of that material by
+anyone who conveys the material (or modified versions of it) with
+contractual assumptions of liability to the recipient, for any
+liability that these contractual assumptions directly impose on those
+licensors and authors.
+@end enumerate
+
+All other non-permissive additional terms are considered ``further
+restrictions'' within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions; the
+above requirements apply either way.
+
+@item Termination.
+
+You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
+terminates your license, and (b) permanently, if the copyright holder
+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+@item Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run
+a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+@item Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+An ``entity transaction'' is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+@item Patents.
+
+A ``contributor'' is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's ``contributor version''.
+
+A contributor's ``essential patent claims'' are all patent claims owned
+or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, ``control'' includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a ``patent license'' is any express
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+
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+
+@item No Surrender of Others' Freedom.
+
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+
+@item Use with the GNU Affero General Public License.
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+
+@item Interpretation of Sections 15 and 16.
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+
+@end enumerate
+
+@heading END OF TERMS AND CONDITIONS
+
+@heading How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
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+
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+@var{one line to give the program's name and a brief idea of what it does.}
+Copyright (C) @var{year} @var{name of author}
+
+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
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+
+This program is distributed in the hope that it will be useful, but
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+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see @url{http://www.gnu.org/licenses/}.
+@end smallexample
+
+Also add information on how to contact you by electronic and paper mail.
+
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+@smallexample
+@var{program} Copyright (C) @var{year} @var{name of author}
+This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}.
+This is free software, and you are welcome to redistribute it
+under certain conditions; type @samp{show c} for details.
+@end smallexample
+
+The hypothetical commands @samp{show w} and @samp{show c} should show
+the appropriate parts of the General Public License. Of course, your
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+use an ``about box''.
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a ``copyright disclaimer'' for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+@url{http://www.gnu.org/licenses/}.
+
+The GNU General Public License does not permit incorporating your
+program into proprietary programs. If your program is a subroutine
+library, you may consider it more useful to permit linking proprietary
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+the GNU Lesser General Public License instead of this License. But
+first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}.
diff --git a/doc/man/adjbacklight.1 b/doc/man/adjbacklight.1
new file mode 100644
index 0000000..d946738
--- /dev/null
+++ b/doc/man/adjbacklight.1
@@ -0,0 +1,104 @@
+.TH ADJBACKLIGHT 1 ADJBACKLIGHT
+.SH NAME
+adjbacklight - Convenient method for adjusting the backlight on your portable computer
+.SH SYNOPSIS
+.B adjbacklight
+(-c | -w | [-g | -s
+.IR LEVEL
+|
+.IR LEVEL ]
+[-a |
+.IR DEVICE ...])
+.SH DESCRIPTION
+.B adjbacklight
+can be used to fetch or set the backlight non-interactively.
+If these feature is not used, it starts a interactive user
+interface in the terminal.
+.PP
+.B adjbacklight
+installs with the set-uid bit set, to enable any user to
+change the backlight on the computer.
+.PP
+.B adjbacklight
+was originally designed for small netbooks that are not running
+.BR X .
+However, it is still suitable for desktop computers and can
+be used inside
+.BR X .
+In fact it seems to work for all machines with backlight, which
+is not true for
+.BR xbacklight (1).
+.V adjbacklight
+uses
+.IR /sys/class/backlight .
+.B adjbacklight
+as been retrofitted to be convenient for use inside
+.B X
+on desktop computers, with commands that lets it be used
+non-interactively with hotkeys set up in
+.BR xbindkeys (1).
+.SH OPTIONS
+.TP
+.BR \-c ,\ \-\-copyright ,\ \-\-copying
+Display copyright information.
+.TP
+.BR \-w, \ \-\-warranty
+Display warranty disclaimer.
+.TP
+.BR \-a, \ \-\-all
+Run for all devices, including ACPI devices.
+.TP
+.BR \-g, \ \-\-get
+Get average brightness on devices.
+.TP
+.BR \-s, \ \-\-set \ \fILEVEL\fP[%]
+Set brightness on devices.
+.PP
+.TP
+.BR \+ \fILEVEL\fP
+Increase brightness on devices by actual value.
+.TP
+.BR \- \fILEVEL\fP
+Decrease brightness on devices by actual value.
+.TP
+.BR \= \fILEVEL\fP
+Set brightness on devices by actual value.
+.br
+.TP
+.BR \+ \fILEVEL\fP%
+Increase brightness on devices by percentage-points.
+.TP
+.BR \- \fILEVEL\fP%
+Decrease brightness on devices by percentage-points.
+.TP
+.BR \= \fILEVEL\fP%
+Set brightness on devices by percentage-points.
+.br
+.TP
+.BR \+ \fILEVEL\fP%%
+Increase brightness on devices by percentage.
+.TP
+.BR \- \fILEVEL\fP%%
+Decrease brightness on devices by percentage.
+.TP
+.BR \= \fILEVEL\fP%%
+Set brightness on devices by percentage.
+.SH "SEE ALSO"
+.BR xbindkeys (1),
+.BR xbacklight (1)
+.PP
+Full documentation available locally via: info \(aq(adjbacklight)\(aq
+.SH AUTHORS
+Principal author, Mattias Andrée. See the COPYING file for the full
+list of authors.
+.SH LICENSE
+Copyright \(co 2015 Mattias Andrée
+.br
+License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
+.br
+This is free software: you are free to change and redistribute it.
+.br
+There is NO WARRANTY, to the extent permitted by law.
+.SH BUGS
+Please report bugs to https://github.com/maandree/adjbacklight/issues or to
+maandree@member.fsf.org