DOCSLIB.ORG

Input Abstraction Layer

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Input Abstraction Layer Diploma Thesis University of Applied Sciences Augsburg Department of Computer Science Input Abstraction Layer Design and Implementation of an Extended Input Interface Submitted by Timo H¨onig,Winter Semester 2004/2005 Examiner: Prof. Dr. Hubert H¨ogl Examiner: Prof. Burkhard Stork Supervisor: Dipl. Inf. (univ.) Stefan Behlert The Diploma Thesis has been created in cooperation with SUSE Linux AG, Nuremberg. Diploma Thesis University of Applied Sciences Augsburg Department of Computer Science I affirm that the diploma thesis is my own work and has never been used before, for any auditing purposes. All used sources, additional used information and citations are quoted as such. Timo H¨onig Input Abstraction Layer Timo H¨onig °c 2004, 2005 Timo H¨onig All rights reserved. Timo H¨onig,Johannes-Haag-Straße 2, D-86153 Augsburg 08 07 06 05 04 6 5 4 3 2 First edition: 15. December 2004 Second impression, with corrections: 9. January 2005 This work is licensed under the Creative Commons Attribution License. To view a copy of this license, visit http://creativecommons.org/licenses/by/2.0/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. All terms mentioned in this work that are known to be trademarks or service marks have been appropriately capitalized. The author cannot attest to the accuracy of this information. Use of a term in this work should not be regarded as affecting the validity of any trademark or service mark. Contents Contents i 1 An Introduction to Linux Input 1 1.1 Current State of Input Devices . 2 1.2 Objective . 3 1.3 Overview of the Diploma Thesis . 3 2 Drivers and Interfaces 5 2.1 Input Core . 5 2.2 Keyboard Device Drivers . 7 2.3 USB Input Device Drivers . 8 2.4 Bluetooth Input Device Drivers . 9 2.5 Event Interface . 10 2.6 Advanced Configuration and Power Interface . 11 Button Driver . 12 Input Event Drivers . 13 Subsystem Overview . 13 2.7 Other Interfaces . 14 3 Requirements Specification 16 3.1 Required Interfaces . 16 Input Event Interface . 16 ACPI Event Interface . 17 Specific Event Interfaces . 17 Output Interface . 18 3.2 Functional Requirements . 19 Unattended Input Events . 19 Elimination of Barriers . 19 Unified Data Representation . 19 Permanent Interface . 19 Independent Interface . 19 3.3 Performance Requirements . 20 3.4 Quality Attributes . 20 3.5 Security Attributes . 20 i CONTENTS ii 4 Design and Architecture 21 4.1 Event Data Flow . 21 4.2 Daemon . 22 4.3 Modular Input Interface . 24 4.4 Abstract Output Interface . 25 5 Implementation 27 5.1 Common Data Structures . 28 5.2 Library . 29 D-BUS . 29 Programming Interface . 30 Logging System . 33 5.3 Modules . 35 Data Structure . 36 Input Events . 37 5.4 Daemon . 38 Module Loader . 39 Configuration File Parser . 42 Command Line Interface . 43 D-BUS . 46 Module Invocation . 47 Event Loop . 48 5.5 Event Interface Module . 49 5.6 ACPI Module . 52 5.7 Toshiba Module . 54 6 Requirements Verification 56 6.1 Functional Achievements . 56 6.2 Performance . 57 6.3 Quality and Security . 62 7 Open Source Development Methodology 63 7.1 Licenses . 64 7.2 Tools and Services . 65 7.3 Collaborative Environment . 66 8 Conclusion 68 8.1 Achievements . 68 8.2 Future Work . 69 A Utilized Free and Open Source Software 70 A.1 Typesetting . 70 A.2 Figures . 70 A.3 Statistical Calculations . 71 A.4 Survey . 71 CONTENTS 1 B Survey: Current State of Linux Input Devices 72 B.1 Announcement . 72 B.2 General . 73 B.3 Desktop Systems . 76 B.4 Laptop Systems . 77 B.5 Demand of Features . 78 C Linux Function Key Support for Laptops 80 C.1 Acer System Management Mode Driver . 80 C.2 Asus/Medion ACPI Driver . 80 C.3 Dell System Management Mode Driver . 80 C.4 Hewlett Packard OmniBook Driver . 81 C.5 IBM ThinkPad ACPI Driver . 81 C.6 IBM ThinkPad (NVRAM) . 81 C.7 Panasonic ACPI Driver . 81 C.8 Toshiba ACPI Driver . 82 C.9 Toshiba System Management Mode Driver . 82 D Source Code 83 D.1 Linux Kernel . 83 D.2 Input Abstraction Layer . 84 D.3 Latency Kernel Driver . 85 E Copyright 87 E.1 Commons Deed . 87 E.2 Legal Code . 88 Abbreviations 92 Glossary 94 Bibliography 96 Print Publications . 96 Online Ressources . 97 Chapter 1 An Introduction to Linux Input The Linux kernel offers drivers for a vast number of different input devices—drivers for key- boards, mice, joysticks, touch screens and others. Even though, many of these input devices can not be used with the GNU/Linux operating system. This severe problem is caused by input device drivers’ varying implementations: they are not following a common standard. It is in the nature of the process how free and open source development evolves by the course of time. Most developers implement device drivers in their sole discretion, only a few are following common approaches. The increasing number of input devices are connected in many different ways which results in a numerous amount of device drivers. For example, most function keys found on mobile computers follow an entirely different approach for processing input events than regular keyboards. All keys—no matter how they are connected to the system—are in- tended to trigger input events which can be utilized. However, applications are not prepared to receive input events from all the interfaces offered by the input device drivers. The project outcome resulting from this diploma thesis solves the problem by creating an abstraction layer—the Input Abstraction Layer. The Input Abstraction Layer represents a framework unifying input events of the different input device.
Load more

Recommended publications
  • Linux Kernel and Driver Development Training Slides
    Linux Kernel and Driver Development Training Linux Kernel and Driver Development Training © Copyright 2004-2021, Bootlin. Creative Commons BY-SA 3.0 license. Latest update: October 9, 2021. Document updates and sources: https://bootlin.com/doc/training/linux-kernel Corrections, suggestions, contributions and translations are welcome! embedded Linux and kernel engineering Send them to [email protected] - Kernel, drivers and embedded Linux - Development, consulting, training and support - https://bootlin.com 1/470 Rights to copy © Copyright 2004-2021, Bootlin License: Creative Commons Attribution - Share Alike 3.0 https://creativecommons.org/licenses/by-sa/3.0/legalcode You are free: I to copy, distribute, display, and perform the work I to make derivative works I to make commercial use of the work Under the following conditions: I Attribution. You must give the original author credit. I Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one. I For any reuse or distribution, you must make clear to others the license terms of this work. I Any of these conditions can be waived if you get permission from the copyright holder. Your fair use and other rights are in no way affected by the above. Document sources: https://github.com/bootlin/training-materials/ - Kernel, drivers and embedded Linux - Development, consulting, training and support - https://bootlin.com 2/470 Hyperlinks in the document There are many hyperlinks in the document I Regular hyperlinks: https://kernel.org/ I Kernel documentation links: dev-tools/kasan I Links to kernel source files and directories: drivers/input/ include/linux/fb.h I Links to the declarations, definitions and instances of kernel symbols (functions, types, data, structures): platform_get_irq() GFP_KERNEL struct file_operations - Kernel, drivers and embedded Linux - Development, consulting, training and support - https://bootlin.com 3/470 Company at a glance I Engineering company created in 2004, named ”Free Electrons” until Feb.
    [Show full text]
  • The Linux Graphics Stack Attributions
    I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions Introduction to GPUs and to the Linux Graphics Stack Martin Peres CC By-SA 3.0 Nouveau developer Ph.D. student at LaBRI November 26, 2012 1 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview Outline 1 I - Hardware : Anatomy of a GPU General overview Driving screens Host < − > GPU communication 2 II - Host : The Linux graphics stack General overview DRM and libdrm Mesa X11 Wayland X11 vs Wayland 3 Attributions Attributions 2 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview General overview of a modern GPU's functions Display content on a screen Accelerate 2D operations Accelerate 3D operations Decode videos Accelerate scientific calculations 3 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview CPU Clock Front-side Graphics Generator bus card slot Chipset Memory Slots High-speed graphics bus (AGP or PCI Northbridge Memory Express) bus (memory controller hub) Internal Bus PCI Bus Onboard Southbridge graphics PCI (I/O controller controller Bus hub) IDE SATA USB Cables and Ethernet ports leading Audio Codec CMOS Memory off-board PCI Slots LPC Bus Super I/O Serial Port Parallel Port Flash ROM Floppy Disk Keyboard (BIOS) Mouse 4 / 36 I - Hardware : Anatomy of a GPU II - Host : The Linux graphics stack Attributions General overview Hardware architecture GPU: Where all the calculations are made VRAM: Stores
    [Show full text]
  • Freiesmagazin 07/2009
    freiesMagazin Juli 2009 Topthemen dieser Ausgabe ZevenOS – Linux goes BeOS Seite 4 Ein biologisches Phänomen hat längst Einzug in die Linux-Welt gehalten: Mimikry. Das bedeu- tet, dass eine Spezies wegen bestimmter Vorteile eine andere Spezies nachahmt, z. B. legt sich eine harmlose Fliegenart das Aussehen von Wespen zu. Einer der neueren Fälle in der Linux-Welt ist ZevenOS, eine Linux-Distribution, die auf Ubuntu aufbaut. Das Besondere: Sie will im Aussehen und in der Benutzung etwas vom Feeling des legendären und leider im Nebel der Geschichte verschwundenen Betriebssystems BeOS vermitteln. (weiterlesen) easyVDR – The easy VDR Distribution Seite 12 Die Distribution easyVDR ist eine unter der GNU General Public License (GPL) veröffentlichte Distribution, die sich den Themen Video und TV widmet. Hat man noch ausgemusterte Rech- ner zuhause, lassen sich diese mit der Hilfe von easyVDR als digitaler Videorekorder nutzen – mit dem Vorteil, in vielen Belangen anpassbar zu sein; ein digitaler Selbstbaukasten sozusa- gen. (weiterlesen) Was bieten freie CRM-Lösungen? – Im Vergleich: SugarCRM und vtiger CRM Seite 34 CRM steht für Customer Relationship Management und beschreibt die Verwaltung von Kunden- daten und Kundenbeziehungen. Anhand eines konkreten Anwendungsfalls der fiktiven Firma EVENTO, einer Veranstaltungsagentur mit dem Schwerpunkt auf außergewöhnliche Orte, wer- den zwei CRM-Lösungen verglichen. Aus der Vielzahl an frei verfügbaren Programmen wurden die zwei populären Vertreter SugarCRM Version 5.2.0c und vtiger CRM Version 5.0.4 ausge- wählt. (weiterlesen) © freiesMagazin GNU FDL Ausgabe 07/2009 ISSN 1867-7991 MAGAZIN Editorial Anleitung: Wie verprellt man eine Community? Wir befinden uns im Jahre 2009 n. Chr. Die ganze ten [5].
    [Show full text]
  • Armadillo-640 製品マニュアル
    Armadillo-640 製品マニュアル A6400-U00Z A6400-D00Z A6400-B00Z Version 1.14.0 2020/07/13 株式会社アットマークテクノ [https://www.atmark-techno.com] Armadillo サイト [https://armadillo.atmark-techno.com] Armadillo-640 製品マニュアル 株式会社アットマークテクノ 製作著作 © 2018-2020 Atmark Techno, Inc. Version 1.14.0 2020/07/13 Armadillo-640 製品マニュアル Armadillo-640 製品マニュアル 目次 1. はじめに ........................................................................................................................................ 15 1.1. 本書で扱うこと扱わないこと ............................................................................................. 15 1.1.1. 扱うこと .................................................................................................................. 15 1.1.2. 扱わないこと ........................................................................................................... 15 1.2. 本書で必要となる知識と想定する読者 ............................................................................... 15 1.3. ユーザー限定コンテンツ .................................................................................................... 16 1.4. 本書および関連ファイルのバージョンについて ................................................................. 16 1.5. 本書の構成 ......................................................................................................................... 16 1.6. 表記について ...................................................................................................................... 17 1.6.1. フォント .................................................................................................................
    [Show full text]
  • Linux, Yocto and Fpgas
    Embedded Open Source Experts Linux, Yocto and FPGAs Integrating Linux and Yocto builds into different SoCs From a Linux software perspective: ➤ Increased demand for Linux on FPGAs ➤ Many things to mange, both technical and practical ➤ FPGAs with integrated CPU cores – very similar many other SoCs Here are some experiences and observations... © Codiax 2019 ● Page 2 Why use Linux? ➤ De-facto standard ➤ Huge HW support ➤ FOSS ➤ Flexible ➤ Adaptable ➤ Stable ➤ Scalable ➤ Royalty free ➤ Vendor independent ➤ Large community ➤ Long lifetime Why not Linux? ➤ Too big ➤ Real-time requirements ➤ Certification ➤ Boot time ➤ Licensing ➤ Too open? Desktop Shells: Desktop Display server: Display BrailleDisplay Touch-Screen Mouse & Keyboard Wayland Compositor Wayland + development tools = a lot code!of source Linux system example weston, clayton,mutter,KWin evdev libinput GNOME Shell D radeon nouveau lima etna_viv freedreno tegra-re lima nouveau radeon freedreno etna_viv e libwayland-server libwayland-server s Cinnamon k t o kms p Linux kernel, Linux kernel, Plasma 2 w i (Kernel Mode Setting) Mode (Kernel d g Cairo-Dock e t s drm (Direct Rendering Manager) Rendering (Direct drm cache coherent L2-Caches L2-Caches cache coherent CPU &GPU Enlight. DR19 System libraries: System oflibraries): form (in the Toolkits Interface User µClibc Pango glibc glibc main memory possibly adaptations to Wayland/Mir libwayland / COGL libwayland Cairo Cairo (Xr) GTK+ Clutter 2D Application 2D GModule GThread GThread GLib GObject Glib GIO ATK devicedrivers other& modules System
    [Show full text]
  • Zynq Ultrascale+ Mpsoc TRD User Guide (UG1221)
    Zynq UltraScale+ MPSoC Base Targeted Reference Design User Guide UG1221 (v2016.4) March 22, 2017 Revision History The following table shows the revision history for this document. Date Version Revision 03/22/2017 2016.4 Released with Vivado Design Suite 2016.4 with no changes from previous version. 12/15/2016 2016.3 Updated for Vivado Design Suite 2016.3: Updated Reference Design Overview. Replaced Chapter 2, Reference Design. Updated Figure 3-1 and the following paragraph. Updated Figure 4-1 and perfapm library descriptions in Chapter 4, RPU-1 Software Stack (Bare-metal). Updated Figure 6-1, Figure 6-2, and DDR region descriptions under Memories in Chapter 6. Updated Figure 7-1, Figure 7-4, and Figure 7-5. Added X11 section, deleted first paragraph under EGLFS QPA, and modified “Evdev” section to “Libinput” in Chapter 7, APU Software Platform. Updated Table 8-2 and clock descriptions under Clocks, Resets and Interrupts in Chapter 8. 07/22/2016 2016.2 Updated for Vivado Design Suite 2016.2: Added “GPU” to hardware interfaces and IP under Key Features. Changed link under Design Modules from the wiki site to the HeadStart Lounge and updated link under Tutorials to the Base TRD wiki site. Deleted steps 2 and 4 under Tutorials and added reference tutorial (last bullet). Added second to last sentence to second paragraph under Boot Process. Added “Load PMU FW” component to Figure 6-1. Clarified Message Passing section (text only). Changed “PCA9546” to PCA9548” in Figure 8-7. 06/29/2016 2016.1 Initial Xilinx release. Zynq UltraScale+ MPSoC Base TRD www.xilinx.com Send Feedback 2 UG1221 (v2016.4) March 22, 2017 Table of Contents Revision History .
    [Show full text]
  • The Pulseaudio Sound Server Linux.Conf.Au 2007
    Introduction What is PulseAudio? Usage Internals Recipes Outlook The PulseAudio Sound Server linux.conf.au 2007 Lennart Poettering [email protected] Universit¨atHamburg, Department Informatik University of Hamburg, Department of Informatics Hamburg, Germany January 17th, 2007 Lennart Poettering The PulseAudio Sound Server 2 What is PulseAudio? 3 Usage 4 Internals 5 Recipes 6 Outlook Introduction What is PulseAudio? Usage Internals Recipes Outlook Contents 1 Introduction Lennart Poettering The PulseAudio Sound Server 3 Usage 4 Internals 5 Recipes 6 Outlook Introduction What is PulseAudio? Usage Internals Recipes Outlook Contents 1 Introduction 2 What is PulseAudio? Lennart Poettering The PulseAudio Sound Server 4 Internals 5 Recipes 6 Outlook Introduction What is PulseAudio? Usage Internals Recipes Outlook Contents 1 Introduction 2 What is PulseAudio? 3 Usage Lennart Poettering The PulseAudio Sound Server 5 Recipes 6 Outlook Introduction What is PulseAudio? Usage Internals Recipes Outlook Contents 1 Introduction 2 What is PulseAudio? 3 Usage 4 Internals Lennart Poettering The PulseAudio Sound Server 6 Outlook Introduction What is PulseAudio? Usage Internals Recipes Outlook Contents 1 Introduction 2 What is PulseAudio? 3 Usage 4 Internals 5 Recipes Lennart Poettering The PulseAudio Sound Server Introduction What is PulseAudio? Usage Internals Recipes Outlook Contents 1 Introduction 2 What is PulseAudio? 3 Usage 4 Internals 5 Recipes 6 Outlook Lennart Poettering The PulseAudio Sound Server Introduction What is PulseAudio? Usage Internals Recipes Outlook Who Am I? Student (Computer Science) from Hamburg, Germany Core Developer of PulseAudio, Avahi and a few other Free Software projects http://0pointer.de/lennart/ [email protected] IRC: mezcalero Lennart Poettering The PulseAudio Sound Server Introduction What is PulseAudio? Usage Internals Recipes Outlook Introduction Lennart Poettering The PulseAudio Sound Server It’s a mess! There are just too many widely adopted but competing and incompatible sound systems.
    [Show full text]
  • A Brief Overview of the Re-Implementation of the Android Push Event Stream Model
    ANDROID PUSH EVENT MODEL 1 A Brief Overview of the Re-Implementation of the Android Push Event Stream Model Dustin McAfee and Brad Vander Zanden E-mail: [email protected], [email protected] F 1 INTRODUCTION The work described, here, is an ongoing attempt to 2 METHODS re-implement an existing model, the Android Event Push Stream Model (ESM), put forth in a number of papers by The Android input stack is comprised of multiple layers Drs. Marz, Vander Zanden, and Gao at the University of for polling input and demultiplexing it to the user processes Tennessee, Knoxville, [1], [2], [3]. This re-implementation (applications). The polling interface to the Linux kernel that differs from Marz’s original implementation in that it at- the Android operating system uses is epoll (see ”frame- tempts to implement only the event push model in the works/native/services/inputflinger/EventHub.cpp” in the Android kernel while Marz’s implementation implemented Android source code, and ”fs/eventpoll.c” in the Linux the event push model in the Android kernel, moved the kernel source code). The Linux kernel running inside of display system into the kernel, and implemented a GUI Android uses the evdev input event interface (see ”driver- scheduler to better manage different GUI tasks. At this point s/input/evdev.c” in the Linux kernel source code). After an we are only re-implementing the event push model so that input event fires an interrupt in the Linux kernel, evdev is we can examine its ability to reduce the power consumption responsible for directing the input event to the correct input of apps using sensor events.
    [Show full text]
  • Release Notes for X11R7.7 the X.Org Foundation [ April 2012
    Release Notes for X11R7.7 The X.Org Foundation [http://www.x.org/wiki/XorgFoundation] April 2012 Abstract These release notes contain information about features and their status in the X.Org Foun- dation X11R7.7 release. 1 Release Notes for X11R7.7 Table of Contents Introduction to the X11R7.7 Release .................................................................... 3 Summary of new features in X11R7.7 .................................................................. 4 Overview of X11R7.7 ............................................................................................. 5 Details of X11R7.7 components ............................................................................ 5 Video Drivers ................................................................................................. 5 Input Drivers .................................................................................................. 7 Xorg server .................................................................................................... 7 Font support ................................................................................................. 10 Build changes and issues .................................................................................... 11 Strict compilation flags ................................................................................ 11 Silent build rules ......................................................................................... 11 New configure options for font modules ....................................................
    [Show full text]
  • 0132396556 Sample.Pdf
    Many of the designations used by manufacturers and sellers to distinguish their products are claimed Editor-in-Chief as trademarks. Where those designations appear in this book, and the publisher was aware of a Mark Taub trademark claim, the designations have been printed with initial capital letters or in all capitals. Executive Editor The author and publisher have taken care in the preparation of this book, but make no expressed Debra Williams Cauley or implied warranty of any kind and assume no responsibility for errors or omissions. No liability Managing Editor is assumed for incidental or consequential damages in connection with or arising out of the use Gina Kanouse of the information or programs contained herein. Project Editor The publisher offers excellent discounts on this book when ordered in quantity for bulk pur- Anne Goebel chases or special sales, which may include electronic versions and/or custom covers and content particular to your business, training goals, marketing focus, and branding interests. For more Copy Editor information, please contact: Keith Cline U.S. Corporate and Government Sales Indexer (800) 382-3419 Erika Millen [email protected] Proofreader For sales outside the United States please contact: San Dee Phillips International Sales Technical Editors [email protected] Vamsi Krishna Jim Lieb Visit us on the Web: www.informit.com/ph Publishing Coordinator Library of Congress Cataloging-in-Publication Data: Heather Fox Venkateswaran, Sreekrishnan, 1972- Interior Designer Essential Linux device drivers / Sreekrishnan Venkateswaran.-- 1st ed. Laura Robbins p. cm. ISBN 0-13-239655-6 (hardback : alk. paper) 1. Linux device drivers (Computer programs) Cover Designer I.
    [Show full text]
  • Real-Time Sensing on Android
    Real-Time Sensing on Android Yin Yan], Shaun Cosgrove], Ethan Blantony, Steven Y. Ko], Lukasz Ziarek];y ]: SUNY Buffalo y: Fiji Systems Inc fyinyan, shaunger, stevko, [email protected] elb@fiji-systems.com ABSTRACT ing. Android provides OS-level and framework-level support for Modern smartphones contain many hardware and software sen- sensor event gathering, fusion, and processing. This well-established sors, with numerous additional sensing capabilities scheduled to be sensor architecture makes Android a robust platform for sensing added in future iterations of the hardware and Android framework applications. Indeed, many Android applications rely and utilize layer. This comes at no surprise as sensing is a crucial aspect of the sensors. most Android applications. Unfortunately, the Android framework provides few guarantees on the delivery of sensor data to applica- There has been much recent interest in exploring the addition of tions that require it. Similarly, the Android specification does not real-time features into Android [10, 15, 28, 29]. Many of the pro- provide much in terms of configuration, making its programming posed uses of a real-time capable Android system are in the con- model difficult to utilize in more traditional real-time contexts. sumer healthcare electronics market segment [1, 3, 5, 6] and rely on Android’s sensing architecture as a core component of the ap- In this paper, we examine the Android’s sensor architecture in de- plication. To apply Android to such setting, real-time guarantees tail and show why it is not suitable for use in a real-time context. must be provided in the framework layer, virtual machine, and the We then introduce the re-design of the sensor architecture within operating system.
    [Show full text]
  • July/August 2021
    July/August 2021 A Straight Path to the FreeBSD Desktop Human Interface Device (HID) Support in FreeBSD 13 The Panfrost Driver Updating FreeBSD from Git ® J O U R N A L LETTER E d i t o r i a l B o a r d from the Foundation John Baldwin FreeBSD Developer and Chair of ne of the myths surrounding FreeBSD is that it • FreeBSD Journal Editorial Board. is only useful in server environments or as the Justin Gibbs Founder of the FreeBSD Foundation, • President of the FreeBSD Foundation, foundation for appliances. The truth is FreeBSD and a Software Engineer at Facebook. O is also a desktop operating system. FreeBSD’s base sys- Daichi Goto Director at BSD Consulting Inc. tem and packages include device drivers for modern • (Tokyo). graphics adapters and input devices. Consistent with Tom Jones FreeBSD Developer, Internet Engineer FreeBSD’s role as a toolkit, FreeBSD supports a variety • and Researcher at the University of Aberdeen. of graphical interfaces ranging from minimalist window managers to full-featured desktop environments. The Dru Lavigne Author of BSD Hacks and • The Best of FreeBSD Basics. first article in this issue walks through several of these Michael W Lucas Author of more than 40 books including options explaining how users can tailor their desktop • Absolute FreeBSD, the FreeBSD to their needs. It also provides pointers to downstream Mastery series, and git commit murder. projects which build an integrated desktop system on Ed Maste Senior Director of Technology, top of FreeBSD. The next two articles dig into the details • FreeBSD Foundation and Member of the FreeBSD Core Team.
    [Show full text]