微型机与应用
微型機與應用
미형궤여응용
Microcomputer & its Applications
2015年
21期
9-12
,共4页
无线网卡%设备驱动%USB 接口%嵌入式 Linux
無線網卡%設備驅動%USB 接口%嵌入式 Linux
무선망잡%설비구동%USB 접구%감입식 Linux
wireless network card%device driver%USB%embedded Linux
针对无线网卡驱动结构复杂、编写困难的问题，提出了一种结构清晰、简单易行的无线网卡驱动模型和设计实现方法；重点研究了 USB 设备驱动结构以及无线网卡数据包的接收和发送流程。在嵌入式 Linux 平台下，设计了基于 USB 接口的无线网卡驱动，实现了对无线网卡芯片 Realtek RTL8188的支持。同时，结合嵌入式软硬件开发平台，成功组建了无线局域网，对驱动程序进行了测试。测试结果表明，无线网卡驱动运行平稳，实现了预期的目标。
針對無線網卡驅動結構複雜、編寫睏難的問題，提齣瞭一種結構清晰、簡單易行的無線網卡驅動模型和設計實現方法；重點研究瞭 USB 設備驅動結構以及無線網卡數據包的接收和髮送流程。在嵌入式 Linux 平檯下，設計瞭基于 USB 接口的無線網卡驅動，實現瞭對無線網卡芯片 Realtek RTL8188的支持。同時，結閤嵌入式軟硬件開髮平檯，成功組建瞭無線跼域網，對驅動程序進行瞭測試。測試結果錶明，無線網卡驅動運行平穩，實現瞭預期的目標。
침대무선망잡구동결구복잡、편사곤난적문제，제출료일충결구청석、간단역행적무선망잡구동모형화설계실현방법；중점연구료 USB 설비구동결구이급무선망잡수거포적접수화발송류정。재감입식 Linux 평태하，설계료기우 USB 접구적무선망잡구동，실현료대무선망잡심편 Realtek RTL8188적지지。동시，결합감입식연경건개발평태，성공조건료무선국역망，대구동정서진행료측시。측시결과표명，무선망잡구동운행평은，실현료예기적목표。
Aiming at the problem that complex structure of network card driver is difficult to implement, a new driver model and method to design it in Linux are introduced. The structure of USB device driver, data packet reception and transmission process of wireless network card are also deeply studied. Meanwhile, a wireless network card driver based on USB is designed and the support for chip Realtek RTL8188 by our system is achieved. What is more, combined with embedded hardware development platform, wireless local area network is successfully established and the validity of driver is also tested. Finally, a result of expected and stable transmission speed, which meets the requirements, is produced.
