linux device driver


One of the many advantages of free operating systems, as typified by Linux, is that their internals are open for all to view. The operating system, once a dark and mysterious area whose code was restricted to a small number of programmers, can now be readily examined, understood, and modified by anybody with the requisite skills. Linux has helped to democratize operating systems. The Linux kernel remains a large and complex body of code, however, and would-be kernel hackers need an entry point where they can approach the code without being overwhelmed by complexity. Often, device drivers provide that gateway.

A Persistent Snapshot Device Driver for Linux .
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Web servers and large enterprises demand online backup capability to protect data that must be available continuously and eliminate the down-time needed to perform conventional off-line backups. Online backup demand is fueled by growing data capacities

Language support for Linux device driver programming
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The success of any commodity operating system is determined by the quality of device driver support. Over the last decades, the computer hardware industry has been advancing at a rapid pace, putting high pressure on device driver developers. About 52% of the Linux

Kernel Korner How to Write a Linux USB Device Driver
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The Linux USB subsystem has grown from supporting only two different types of devices in the 2.2. 7 kernel (mice and keyboards), to over 20 different types of devices in the 2.4 kernel. Linux currently supports almost all USB class devices (standard types of devices like

Linux Device Driver
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#define f_dentry f_path.dentry #define f_vfsmnt f_path.mnt const struct file_operations *f_op; atomic_t f_count; unsigned int f_flags; mode_t f_mode; loff_t f_pos; struct fown_struct f_owner; unsigned int f_uid, f_gid; struct file_ra_state f_ra; unsigned long f_version; #ifdef

Verification of Linux Device Driver Code
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We examine a Linux device driver used on IBM mainframes and focus on the misuse of unsigned integers. First, we develop a specialpurpose tool which analyzes the parse-tree of the source code. It reports easy cases of misuses immediately, and otherwise annotates the

Linux Device Driver Synthesis and Verification
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I. 1 Problem The device driver is a program which provides a software interface to a hardware device enabling operating systems and other computer programs to access hardware functions without needing to know details of the hardware. It can be treated as an

DEMOLISHING MYTHS IN MICROCOMPUTING LAB: BUILD A LINUX DEVICE DRIVER
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ABSTRACT In Computer Science and Informatics courses, students usually learn programming in a finest abstract way. The highlevel programming though does not provide information about what the computer really does when executing a program. On the other

PCIComm: A Linux Device Driver for Communication over PCI Shared Memory
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Computing clusters are often comprised of a set of full computers connected by a network. Several technologies are emerging to more tightly couple the CPUs in clusters. This paper addresses a Linux device driver for an inter-node communication system. It describes a

A Linux Device Driver for Direct Access to the Parallel Port
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While trying to find decent tools for programming a PIC 16F84A microcontroller (or PICs in general) in-circuit under Linux I learned that there are a lot of solutions on the Internet. However, all programs ranging from prog841 to picprg2 need root access to work. This is

Linux Device Driver For The IBM Charm-Lite Asynchronous Transfer Mode Adapter
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Abstract Asynchronous Transfer Mode (ATM) delivers important advantages over existing LAN and WAN technologies, including the promise of scalable bandwidths at unprecedented price and performance points and Quality of Service (QoS) guarantees

An Embedded USB Controller Linux Device Driver : Common Practices and Experience
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An embedded device is a special-purpose computer system, which is completely encapsulated by the device it controls. An embedded device has specific requirements and performs pre-defined tasks, unlike a general-purpose personal computer. Examples of

Understanding Linux Network Device Driver and NAPI Mechanism
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in te rru p ts /s e co n d Time(s) streaming YouTube video streaming YouTube video Accumulated interrupts Differentiated interrupts Page 12. 5/2/2014 12 Summary and future work The Linux network device driver was analyzed base on Intel E1000 driver code files. The mechanism and

IMPLEMENTATION OF LINUX BASED UART DEVICE DRIVER
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This paper deals with design, implementation and testing of device driver for a DUART TL16C2550 peripheral on a MDROADM board. The MDROADM board is used in optical networks for switching the optical signals between the nodes. The MDROADM board is

Implementation of Cmos Camera Device Driver and Wifi Technology on S3c2440 Using Linux
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With the processing of CMOS technology, the technology of video acquisition based on CMOS is becoming a new trend. However, many CMOS camera chip is not supported by the newest Linux kernel yet. The environmental image acquirement and the Wi-Fi transmission

A Symbol Spectrum24 Wireless LAN Device Driver for Linux
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With Linux becoming a viable alternative to commercial operating systems and the recent explosion of wireless technologies, Symbol Technologies is seeking a driver that will allow them to tap into the Linux market. This project created a Linux device driver for the PCMCIA

Analysis of techniques for Linux kernel device driver programming
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This interest finally materialized as the desire to start and develop the PFC project as a personal research project to gain further knowledge on Linux programming, covering some kernel-space concepts. So in some sense this work is kind of a continuation to the work

A Formal Model for a Block Device Driver and Related Subsystems of the Linux Kernel
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A formal model of the block- device subsystem of the Linux operating system kernel is set out here, as a preliminary to further formal methods work, an introduction to the kernel for formal methods people, and a new perspective for kernel authors. The model is written abstractly

Design and Development of a USB Device , Firmware Stack, and Linux Kernel Driver
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The purpose of this independent study was to gain a thorough understanding of the Universal Serial Bus (USB) protocol, as well as the hardware and software interfaces used to communicate between a USB host and device . As such, this study included the design



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