A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the network, talk to a serial port, get interactive input from the user, pop up GUI windows, or read from disks. User-space drivers implemented using FUSD can be much easier to debug it is impossible for them to crash the machine, are easily traceable using tools such as gdb, and can be killed and restarted without rebooting even if they become corrupted. FUSD drivers don t have to be in C--Perl, Python, or any other language that knows how to read from and write to a file descriptor can work with FUSD. User-space drivers can be swapped out, whereas kernel drivers lock physical memory.
標(biāo)簽: user-space can drivers perform
上傳時(shí)間: 2014-01-01
上傳用戶:saharawalker
Wishbone to LPC (Low-Pin Count) Bridge, includes master and slave modules. Supports 8-bit I/O Read and Write cycles, 8-bit Memory Read/Write cycles, DMA cycles, and up to 32-bit Firmware memory read/write cycles. Serial IRQ support is also provided. None of this has been tested (yet) with a third-party LPC Peripheral or Host.
標(biāo)簽: Wishbone Supports includes Low-Pin
上傳時(shí)間: 2014-12-20
上傳用戶:古谷仁美
VHDL implementation of the twofish cipher for 128,192 and 256 bit keys. The implementation is in library-like form All needed components up to, including the round/key schedule circuits are implemented, giving the flexibility to be combined in different architectures (iterative, rolled out/pipelined etc). Manual in English is included with more details about how to use the components and/or how to optimize some of them. All testbenches are provided (tables, variable key/text, ECB/CBC monte carlo) for 128, 192 and 256 bit key sizes, along with their respective vector files.
標(biāo)簽: implementation twofish cipher VHDL
上傳時(shí)間: 2017-06-25
上傳用戶:王小奇
Normally a list view is updated by a user directly by selecting a list view item and then editing or deleting it. New items are usually added at the bottom of the list. This works fine since the user knows which items have been changed or deleted and where the new items will pop up. A drawback of it is that, if the list is sorted, then new items will not be displayed in a sorted way, instead they will be listed in the order of being created.
標(biāo)簽: list view selecting Normally
上傳時(shí)間: 2017-07-02
上傳用戶:Pzj
Help Desk Pro has three different interfaces for all three domains of users, providing them with the controls required by them, to save time the application generates reports, which are dynamic as well, taking input from admin and generating results.As for the user account management, the user him/herself can edit their account and personal set-up and the admin can make representatives and admin.
標(biāo)簽: three interfaces different providing
上傳時(shí)間: 2017-07-08
上傳用戶:sevenbestfei
WordWeb thesaurus/dictionary component for Delphi and C++ Builder Version 1.62, freeware The component uses the free WordWeb thesaurus/dictionay available from http://wordweb.co.uk/free You (and anyone using your program) should install WordWeb before using this component. If it is not installed the component raises an exception when you look up a word. It will also work with WordWeb Pro, available from http://www.wordweb.co.uk/ For more flexible and customizable dictionary/thesaurus components see WordWeb Developer at http://www.x-word.com/wwdev/
標(biāo)簽: dictionary thesaurus component freeware
上傳時(shí)間: 2014-01-11
上傳用戶:talenthn
設(shè)計(jì)一個(gè)單片機(jī)電路,2個(gè)按鍵,1位數(shù)碼管,4個(gè)LED,1個(gè)按鍵按下, 數(shù)碼管自增1(up),另一個(gè)按鍵按下,數(shù)碼管自減1(down),4個(gè)LED 顯示數(shù)字值。
標(biāo)簽: 單片機(jī)電路
上傳時(shí)間: 2013-12-10
上傳用戶:teddysha
GSM Call Flow MS Terminated Call Procedure Mobile - Originating Call Procedure INTRA_VLR LOCATION UPDATING OR IMSI ATTACH( in old VLR )
標(biāo)簽: Procedure Call Originating Terminated
上傳時(shí)間: 2017-07-28
上傳用戶:mpquest
The Pages 2.0 specification is one of the most exciting Java Community Process releases of the year. Chances are you picked this book to learn more about the new features of 2.0. Or you may be interested in using for the first time in your next project. Regardless of your interest, we ve put together a book that tries to bring you up to speed fast. The goal of has been to make it easier to create sophisticated, well-designed Web applications. We feel that the authors of the specification have achieved their goal. Working with databases or XML has never been simpler. Your applications can be functionally well-organized. You can create your own reusable components.
標(biāo)簽: specification Community the exciting
上傳時(shí)間: 2017-08-02
上傳用戶:liglechongchong
采用模塊化格式編寫的基于PIC單片機(jī)的簡(jiǎn)單計(jì)算器,采用4*4鍵盤輸入,4位數(shù)碼管輸出,電路圖為kb16seg74ok.DSN。 MPLAB V7.1+HI-TECH V8.05+Proteus V7.1
上傳時(shí)間: 2017-08-06
上傳用戶:牛津鞋
蟲蟲下載站版權(quán)所有 京ICP備2021023401號(hào)-1