DOCSLIB.ORG

How to Handle USB Suspend Mode on Sama5x

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
How to Handle USB Suspend Mode on Sama5x AN2457 How to Handle USB Suspend Mode on SAMA5x Introduction This application note describes the USB Suspend mode operation in the SAMA5x series of microprocessors. The document demonstrates the USB Suspend feature, and its implementation and testing in Linux on a SAMA5D2/D3/D4 Xplained Ultra board. References The following items are available on http://www.microchip.com. Type Title Lit. No. Datasheet SAMA5D2 Device Datasheet DS60001476 Datasheet SAMA5D3 Device Datasheet 11121 Datasheet SAMA5D4 Device Datasheet 11238 User Guide SAMA5D2 Xplained Ultra User Guide 44028 User Guide SAMA5D2 Rev. B Xplained Ultra User Guide 44083 User Guide SAMA5D3 Xplained User Guide 11269 User Guide SAMA5D4 Xplained Ultra User Guide 44005 Application Note SAMA5D2 Low-Power Modes Implementation 44042 Application Note Low-power Modes on the SAMA5D3 Series 11185 Software Package SAMA5D2 Software Package – Refer also to Linux Kernel from GitHub on: https://github.com/linux4sam/linux-at91 © 2017 Microchip Technology Inc. Application Note DS00002457A-page 1 AN2457 Table of Contents Introduction......................................................................................................................1 References...................................................................................................................... 1 1. USB Suspend Mode ................................................................................................. 4 2. USB Ports in SAMA5Dx Devices...............................................................................6 2.1. USB Host and Device Ports in SAMA5D2....................................................................................6 2.2. USB Host and Device Ports in SAMA5D3 and SAMA5D4...........................................................7 3. USB High-Speed Device Port (UDPHS)....................................................................9 3.1. Description................................................................................................................................... 9 3.2. Embedded Characteristics........................................................................................................... 9 3.3. UTMI Transceivers Sharing........................................................................................................10 3.4. Working with Host Port A as Device Port................................................................................... 10 4. Entering Suspend Mode from USB Device Port......................................................12 4.1. USB Device Suspend.................................................................................................................12 5. Exiting Suspend Mode from USB Device Port........................................................ 14 5.1. Receiving a Host Resume..........................................................................................................14 5.2. Sending an External Resume.....................................................................................................14 6. USB Host High-Speed Port (UHPHS)..................................................................... 16 6.1. Embedded Characteristics......................................................................................................... 16 6.2. SAMA5D2 USB Host Ports........................................................................................................ 16 6.3. SAMA5D3 USB Host Ports........................................................................................................ 16 6.4. SAMA5D4 USB Host Ports........................................................................................................ 16 6.5. USB Port Sharing.......................................................................................................................16 6.6. Block Diagram............................................................................................................................17 7. Types of USB Suspend........................................................................................... 20 8. USB Global Suspend...............................................................................................21 8.1. USB Global Suspend in SAMA5Dx Devices.............................................................................. 21 9. Suspending USB Host Ports in SAMA5Dx Devices................................................ 22 9.1. USB Suspend Mode Implementation in Linux Kernel................................................................ 22 10. USB Selective Suspend Example........................................................................... 24 10.1. Hardware Setup for USB Selective Suspend.............................................................................24 10.2. USB Selective Suspend Mode on Host Ports ........................................................................... 25 11. USB Global Suspend Example................................................................................33 12. Power Consumption during USB Suspend..............................................................34 © 2017 Microchip Technology Inc. Application Note DS00002457A-page 2 AN2457 13. USB Host Limitations and Corrections.................................................................... 35 14. Revision History.......................................................................................................36 The Microchip Web Site................................................................................................ 37 Customer Change Notification Service..........................................................................37 Customer Support......................................................................................................... 37 Microchip Devices Code Protection Feature................................................................. 37 Legal Notice...................................................................................................................38 Trademarks................................................................................................................... 38 Quality Management System Certified by DNV.............................................................39 Worldwide Sales and Service........................................................................................40 © 2017 Microchip Technology Inc. Application Note DS00002457A-page 3 AN2457 1. USB Suspend Mode According to the USB specification, in absence of bus traffic over USB in powered state for more than 3 milliseconds, all devices that are supplied power through the Universal Serial Bus (USB) must enter Suspend mode. Suspend mode reduces the use of bus power by a device when the host has no reason to communicate with it. This enables the device to enter low-power mode in order to reduce power consumption. Bus- powered devices draw current from the USB. These devices must reduce their power consumption to meet USB specifications when they are inactive. For power consumption values, refer to Section 4 of the USB Specifications datasheet (version 1.1), available on http://www.usb.org. A device in Suspend mode can resume operation when any active signal is received on its upstream port. It can resume operation from the application using an external interrupt. Selective port suspend reduces power, with most suspended devices drawing less than 500 µA, including current from pullup resistors on the bus. All devices below a suspended port are suspended. USB High Speed Device Port (UDPHS) and USB High Speed Host Port (UHPHS) in the SAMA5x series are compliant with the Universal Serial Bus (USB), revision 2.0 High Speed Device Specification and are designed to support Suspend mode when the USB bus is inactive. USB has a start of frame or keep alive packet sent periodically on the bus. This prevents an idle bus from entering Suspend mode in the absence of data. • A high-speed bus has microframes sent every 125.0 µs ±62.5 ns • A full-speed bus has a frame sent every 1.000 ms ±500 ns © 2017 Microchip Technology Inc. Application Note DS00002457A-page 4 AN2457 Figure 1-1. USB Device States Movement from one state to another depends on the USB bus state or on standard requests sent through control transactions via the default endpoint (endpoint 0). The USB bus only has two states - active and suspended - based on traffic over the bus. © 2017 Microchip Technology Inc. Application Note DS00002457A-page 5 AN2457 2. USB Ports in SAMA5Dx Devices This section classifies the available Universal Serial Bus ports and required power supply on SAMA5Dx products. 2.1 USB Host and Device Ports in SAMA5D2 SAMA5D2 devices feature three host ports (A, B, C). Host port A and Host port B support high-speed and full-speed devices as per USB 1.1 and USB 2.0 specifications. Host port A and the device port (UDPHS) share the same transceiver. Host port C is designed for HSIC (High-Speed Inter-Circuit) and supports only high-speed devices. A detailed description is given in USB Inter-chip Transceiver (SAMA5D2 only). Figure 2-1. USB Selection Table 2-1. SAMA5D2 USB Ports Device SAMA5D21/22/23 SAMA5D24 SAMA5D26 SAMA5D27 SAMA5D28 Package TFBGA196 TFBGA256 LFBGA289 USB 2 (2 hosts or 1 host/1 device) 3 (2 hosts/1 2 (2 hosts or 1 3 (2 hosts/1 HSIC, or 1 HSIC, or 1 host / 1 host/ 1 device/ 1 HSIC) host/1 device/ device) 1 HSIC) © 2017 Microchip Technology Inc. Application Note DS00002457A-page 6 AN2457 Table 2-2. SAMA5D2 Power Supplies Name
Load more

Recommended publications
  • Administració De Sistemes GNU Linux Mòdul4 Administració
    Administració local Josep Jorba Esteve PID_00238577 GNUFDL • PID_00238577 Administració local Es garanteix el permís per a copiar, distribuir i modificar aquest document segons els termes de la GNU Free Documentation License, Version 1.3 o qualsevol altra de posterior publicada per la Free Software Foundation, sense seccions invariants ni textos de la oberta anterior o posterior. Podeu consultar els termes de la llicència a http://www.gnu.org/licenses/fdl-1.3.html. GNUFDL • PID_00238577 Administració local Índex Introducció.................................................................................................. 5 1. Eines bàsiques per a l'administrador........................................... 7 1.1. Eines gràfiques i línies de comandes .......................................... 8 1.2. Documents d'estàndards ............................................................. 10 1.3. Documentació del sistema en línia ............................................ 13 1.4. Eines de gestió de paquets .......................................................... 15 1.4.1. Paquets TGZ ................................................................... 16 1.4.2. Fedora/Red Hat: paquets RPM ....................................... 19 1.4.3. Debian: paquets DEB ..................................................... 24 1.4.4. Nous formats d'empaquetat: Snap i Flatpak .................. 28 1.5. Eines genèriques d'administració ................................................ 36 1.6. Altres eines .................................................................................
    [Show full text]
  • Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 12 SP4
    SUSE Linux Enterprise Server 12 SP4 Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 12 SP4 Provides information about how to manage storage devices on a SUSE Linux Enterprise Server. Publication Date: September 24, 2021 SUSE LLC 1800 South Novell Place Provo, UT 84606 USA https://documentation.suse.com Copyright © 2006– 2021 SUSE LLC and contributors. All rights reserved. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled “GNU Free Documentation License”. For SUSE trademarks, see https://www.suse.com/company/legal/ . All other third-party trademarks are the property of their respective owners. Trademark symbols (®, ™ etc.) denote trademarks of SUSE and its aliates. Asterisks (*) denote third-party trademarks. All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its aliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof. Contents About This Guide xii 1 Available Documentation xii 2 Giving Feedback xiv 3 Documentation Conventions xiv 4 Product Life Cycle and Support xvi Support Statement for SUSE Linux Enterprise Server xvii • Technology Previews xviii I FILE SYSTEMS AND MOUNTING 1 1 Overview
    [Show full text]
  • USB Composite Gadget Using CONFIG-FS on Dra7xx Devices
    Application Report SPRACB5–September 2017 USB Composite Gadget Using CONFIG-FS on DRA7xx Devices RaviB ABSTRACT This application note explains how to create a USB composite gadget, network control model (NCM) and abstract control model (ACM) from the user space using Linux® CONFIG-FS on the DRA7xx platform. Contents 1 Introduction ................................................................................................................... 2 2 USB Composite Gadget Using CONFIG-FS ............................................................................. 3 3 Creating Composite Gadget From User Space.......................................................................... 4 4 References ................................................................................................................... 8 List of Figures 1 Block Diagram of USB Composite Gadget............................................................................... 3 2 Selection of CONFIGFS Through menuconfig........................................................................... 4 3 Select USB Configuration Through menuconfig......................................................................... 4 4 Composite Gadget Configuration Items as Files and Directories ..................................................... 5 5 VID, PID, and Manufacturer String Configuration ....................................................................... 6 6 Kernel Logs Show Enumeration of USB Composite Gadget by Host ................................................ 6 7 Ping
    [Show full text]
  • Oracle® Linux 7 Managing File Systems
    Oracle® Linux 7 Managing File Systems F32760-07 August 2021 Oracle Legal Notices Copyright © 2020, 2021, Oracle and/or its affiliates. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs) and Oracle computer documentation or other Oracle data delivered to or accessed by U.S. Government end users are "commercial computer software" or "commercial computer software documentation" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, the use, reproduction, duplication, release, display, disclosure, modification, preparation of derivative works, and/or adaptation of i) Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs), ii) Oracle computer documentation and/or iii) other Oracle data, is subject to the rights and limitations specified in the license contained in the applicable contract.
    [Show full text]
  • Unionfs: User- and Community-Oriented Development of a Unification File System
    Unionfs: User- and Community-Oriented Development of a Unification File System David Quigley, Josef Sipek, Charles P. Wright, and Erez Zadok Stony Brook University {dquigley,jsipek,cwright,ezk}@cs.sunysb.edu Abstract If a file exists in multiple branches, the user sees only the copy in the higher-priority branch. Unionfs allows some branches to be read-only, Unionfs is a stackable file system that virtually but as long as the highest-priority branch is merges a set of directories (called branches) read-write, Unionfs uses copy-on-write seman- into a single logical view. Each branch is as- tics to provide an illusion that all branches are signed a priority and may be either read-only writable. This feature allows Live-CD develop- or read-write. When the highest priority branch ers to give their users a writable system based is writable, Unionfs provides copy-on-write se- on read-only media. mantics for read-only branches. These copy- on-write semantics have lead to widespread There are many uses for namespace unifica- use of Unionfs by LiveCD projects including tion. The two most common uses are Live- Knoppix and SLAX. In this paper we describe CDs and diskless/NFS-root clients. On Live- our experiences distributing and maintaining CDs, by definition, the data is stored on a read- an out-of-kernel module since November 2004. only medium. However, it is very convenient As of March 2006 Unionfs has been down- for users to be able to modify the data. Uni- loaded by over 6,700 unique users and is used fying the read-only CD with a writable RAM by over two dozen other projects.
    [Show full text]
  • ODROID-HC2: 3.5” High Powered Storage  February 1, 2018
    ODROID WiFi Access Point: Share Files Via Samba February 1, 2018 How to setup an ODROID with a WiFi access point so that an ODROID’s hard drive can be accessed and modied from another computer. This is primarily aimed at allowing access to images, videos, and log les on the ODROID. ODROID-HC2: 3.5” High powered storage February 1, 2018 The ODROID-HC2 is an aordable mini PC and perfect solution for a network attached storage (NAS) server. This device home cloud-server capabilities centralizes data and enables users to share and stream multimedia les to phones, tablets, and other devices across a network. It is an ideal tool for many use Using SquashFS As A Read-Only Root File System February 1, 2018 This guide describes the usage of SquashFS PiFace: Control and Display 2 February 1, 2018 For those who have the PiFace Control and Display 2, and want to make it compatible with the ODROID-C2 Android Gaming: Data Wing, Space Frontier, and Retro Shooting – Pixel Space Shooter February 1, 2018 Variations on a theme! Race, blast into space, and blast things into pieces that are racing towards us. The fun doesn’t need to stop when you take a break from your projects. Our monthly pick on Android games. Linux Gaming: Saturn Games – Part 1 February 1, 2018 I think it’s time we go into a bit more detail about Sega Saturn for the ODROID-XU3/XU4 Gaming Console: Running Your Favorite Games On An ODROID-C2 Using Android February 1, 2018 I built a gaming console using an ODROID-C2 running Android 6 Controller Area Network (CAN) Bus: Implementation
    [Show full text]
  • Deploying OFS Technology in the Wild: a Case Study
    13th ANNUAL WORKSHOP 2017 DEPLOYING OFS TECHNOLOGY IN THE WILD A CASE STUDY Susan Coulter / HPC-Design Los Alamos National Laboratory [ March 31, 2017 ] LA-UR-17-22449 HOW THE STORY STARTS… . LANL / CSCNSI • Summer school for Junior/Senior Computer Science majors • Project: Compare 100G Ethernet to IB EDR • Cluster built with IB FDR • Preliminary test compared FDR to EDR 2 OpenFabrics Alliance Workshop 2017 FIRST WRINKLE . LANL deployed Damselfly IB backbone HUNTER • Only EDR systems in production • SM, slipknot cluster, redcap cluster • Most other systems FDR-connected • Built early with Mellanox-OFED GARCIA • Replaced with TOSS(RedHat) bundled OFS Trinity Lustre • Tri-Lab Operating System Stack Common Lustre • TOSS2 -> RedHat6 • TOSS3 -> RedHat7 • LANL upgrade schedule slower than LLNL upgrade schedule • LANL running version(s) LLNL has frozen Mid/Long Term Archive IB EDR 3 OpenFabrics Alliance Workshop 2017 WRINKLES WITHIN WRINKLES . Disk-ful / Disk-less / Configuration Management • Install / test Mellanox OFED on TOSS standalone system – easy • Non-standard kernels use Mellanox script – easy • Cfengine controls cluster configuration • RPMs only – automation preferred except under extreme circumstances • Local updates repo (kernel RPMs and associated libraries) • Newer version number • depmod –a » /etc/depmod.d/mlnx-ofa_kernel.conf • Hybrid images – RAM and NFS mount • Necessary kernel modules need to be in RAM » rdma_cm requires configfs.ko override ib_uverbs * weak-updates/mlnx-ofa_kernel/drivers/infiniband/core override ib_addr * weak-updates/mlnx-ofa_kernel/drivers/infiniband/core override ib_umad * weak-updates/mlnx-ofa_kernel/drivers/infiniband/core override ib_core * weak-updates/mlnx-ofa_kernel/drivers/infiniband/core 4 OpenFabrics Alliance Workshop 2017 SUCCESS ! . Campaign / Scality system upgraded • ~25% increase in performance • Uses >lots< of small messages .
    [Show full text]
  • Interaction Between the User and Kernel Space in Linux
    1 Interaction Between the User and Kernel Space in Linux Kai Lüke, Technische Universität Berlin F Abstract—System calls based on context switches from user to kernel supported in POSIX as well as System V style. A very space are the established concept for interaction in operating systems. common principle for IPC are sockets, and pipes can be seen On top of them the Linux kernel offers various paradigms for commu- as their most simple case. Besides the popular IP family with nication and management of resources and tasks. The principles and TCP/UDP, the local Unix domain sockets play a big role basic workings of system calls, interrupts, virtual system calls, special for many applications, while Netlink sockets are specific purpose virtual filesystems, process signals, shared memory, pipes, Unix or IP sockets and other IPC methods like the POSIX or System V to the Linux kernel and are not often found in user space message queue and Netlink are are explained and related to each other applications due to portability to other operating systems. in their differences. Because Linux is not a puristic project but home for There have been attempts to bring the D-BUS IPC into many different concepts, only a mere overview is presented here with the kernel with a Netlink implementation, kdbus and then focus on system calls. Bus1, but this will not be covered here. Also comparative studies with other operating systems are out of scope. 1 INTRODUCTION 2 KERNEL AND USER SPACE ERNELS in the Unix family are normally not initiating K any actions with outside effects, but rely on requests The processes have virtualized access to the memory as well from user space to perform these actions.
    [Show full text]
  • MCP Salt Formulas Version Q4-18 Mirantis Cloud Platform Salt Formulas Documentation Version Latest
    MCP Salt Formulas version q4-18 Mirantis Cloud Platform Salt Formulas Documentation version latest Copyright notice 2021 Mirantis, Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. No part of this publication may be reproduced in any written, electronic, recording, or photocopying form without written permission of Mirantis, Inc. Mirantis, Inc. reserves the right to modify the content of this document at any time without prior notice. Functionality described in the document may not be available at the moment. The document contains the latest information at the time of publication. Mirantis, Inc. and the Mirantis Logo are trademarks of Mirantis, Inc. and/or its affiliates in the United States an other countries. Third party trademarks, service marks, and names mentioned in this document are the properties of their respective owners. ©2021, Mirantis Inc. Page 2 Mirantis Cloud Platform Salt Formulas Documentation version latest Preface This documentation provides information on how to use Mirantis products to deploy cloud environments. The information is for reference purposes and is subject to change. Intended audience This documentation is intended for deployment engineers, system administrators, and developers; it assumes that the reader is already familiar with network and cloud concepts. Documentation history The following table lists the released revisions of this documentation: Revision date Description February 8, 2019 Q4`18 GA ©2021, Mirantis Inc. Page 3 Mirantis Cloud Platform Salt Formulas Documentation version latest List of Salt formulas supported in MCP Salt formulas are pre-written Salt states. They are open-ended and can be used for such tasks as package installation, service configuration and starting, users and permissions setup, and others.
    [Show full text]
  • Petalinux Tools Documentation: Reference Guide
    See all versions of this document PetaLinux Tools Documentation Reference Guide UG1144 (v2021.1) June 16, 2021 Revision History Revision History The following table shows the revision history for this document. Section Revision Summary 06/16/2021 Version 2021.1 Chapter 7: Customizing the Project Added a new section: Configuring UBIFS Boot. Chapter 5: Booting and Packaging Updated Steps to Boot a PetaLinux Image on Hardware with SD Card. Appendix A: Migration Added FPGA Manager Changes, Yocto Recipe Name Changes, Host GCC Version Upgrade. Chapter 10: Advanced Configurations Updated U-Boot Configuration and Image Packaging Configuration. UG1144 (v2021.1) June 16, 2021Send Feedback www.xilinx.com PetaLinux Tools Documentation Reference Guide 2 Table of Contents Revision History...............................................................................................................2 Chapter 1: Overview.................................................................................................... 8 Introduction................................................................................................................................. 8 Navigating Content by Design Process.................................................................................... 9 Chapter 2: Setting Up Your Environment...................................................... 11 Installation Steps.......................................................................................................................11 PetaLinux Working Environment Setup................................................................................
    [Show full text]
  • Using Squashfs to Read-Only Root File System
    2021/01/22 09:05 1/9 Using SquashFS to read-only root file system Using SquashFS to read-only root file system This HOWTO guide describes the usage of SquashFS. SquashFS is a compressed read-only file system for Linux on ODROID-XU4 series like HC1,HC2,MC1 and XU3. RootFS corruption rate after power failures will be significantly reduced because SquashFS is a very robust file system. Note.. The properly working built-in squashfs driver is available in the Kernel update 4.14.5-92 or higher. Prepare a boot device You need to prepare a bootable uSD or emmc with Ubuntu minimal image. For instructions on how to write images to a card, see the following page. https://wiki.odroid.com/troubleshooting/odroid_flashing_tools This HOWTO guide is using a uSD card. Installing the squashfs-tools Now you need to install squashfs-tools on your linux pc- the tool for creating squashed file systems. ck@ck-desktop:~$ sudo apt install squashfs-tools Creating squashed root file system image 1. Remove auto-resize script. 2. Eidt /etc/rc.local and remove auto-resize feature. 3. Eidt /etc/fstab and remove root mount option. 4. Use mksquashfs for creating read-only root file systems ck@ck-desktop:~$ sudo rm /media/ck/rootfs/aafirstboot ck@ck-desktop:~$ sudo cat /media/ck/rootfs/etc/rc.local #!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "" on success or any other # value on error. # ODROID Wiki - http://wiki.odroid.com/ Last update: odroid-xu4:application_note:software:read_only_rootfs_to_squashfs http://wiki.odroid.com/odroid-xu4/application_note/software/read_only_rootfs_to_squashfs 2021/01/18 02:24 # In order to enable or disable this script just change the execution # bits.
    [Show full text]
  • Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 15 SP2
    SUSE Linux Enterprise Server 15 SP2 Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 15 SP2 Provides information about how to manage storage devices on a SUSE Linux Enterprise Server. Publication Date: September 24, 2021 SUSE LLC 1800 South Novell Place Provo, UT 84606 USA https://documentation.suse.com Copyright © 2006– 2021 SUSE LLC and contributors. All rights reserved. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled “GNU Free Documentation License”. For SUSE trademarks, see https://www.suse.com/company/legal/ . All other third-party trademarks are the property of their respective owners. Trademark symbols (®, ™ etc.) denote trademarks of SUSE and its aliates. Asterisks (*) denote third-party trademarks. All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its aliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof. Contents About This Guide xii 1 Available Documentation xii 2 Giving Feedback xiv 3 Documentation Conventions xiv 4 Product Life Cycle and Support xvi Support Statement for SUSE Linux Enterprise Server xvii • Technology Previews xviii I FILE SYSTEMS AND MOUNTING 1 1 Overview
    [Show full text]