It is both an OSI layer 1 (physical layer) and layer 2 (data link layer) device, as it provides physical access to a networking medium and provides a low-level addressing system Device Drivers can provide a level of security as they can run in kernel-mode, thereby protecting the operating system from applications running in user-mode. The hardware preempts the currently executing thread The driver’s ISR does the minimum amount of work necessary The softirq handler does the rest of the driver’s work The Linux e1000 Driver Embed Size (px) Start on Show related SlideShares at end WordPress Shortcode Link Device Drivers 11,342 views Share Like Download Suhas S R, Student Follow Published on Mar 15, 2009 Source
Questions….???? Device Drivers Modeling Device Driver Effects in Real-Time Schedulability Analysis: Study of a Network Driver By Lewandowski, M. Stanovich, M.J. Baker, T.P. The device interrupt is
Disadvantages of device drivers in real time
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What is a demand analysis ?
www.en.wikipedia.org www.dlc.sun.com www.tjdl.uh.edu/articles/1/lectures/tables.cfm www.macsoft-firmware.com Modeling device driver effects in real-time schedulability analysis: Study of a network driver (IEEE paper) Papers Websites References Linux Device Drivers Books By Jonathan Corbet, Alessandro Rubini, A device driver simplifies programming by acting as an abstraction layer between a hardware device and the applications or operating systems that use it The higher-level application code can be written Facebook Twitter LinkedIn Google+ Link Public clipboards featuring this slide × No public clipboards found for this slide × Save the most important slides with Clipping Clipping is a handy have a peek here Case Studies A network interface controller ( NIC ), is a computer hardware component designed to allow computers to communicate over a computer network.
It allows users to connect to each other either by using cables or wirelessly. Gopalan, K. An-I Wang Dept. Device Drivers In Embedded Systems Ppt Select another clipboard × Looks like you’ve clipped this slide to already.
The device-driver accepts the generic high-level commands and breaks them into a series of low-level device-specific commands as required by the device being driven. 5. What is a demand analysis ?