| Linux环境下USB设备驱动程序设计 |
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| 引用本文： | 朱恩亮,赵腊才,茹伟,胡宇凡. Linux环境下USB设备驱动程序设计[J]. 电子科技, 2016, 29(1): 108 |
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| 作者姓名： | 朱恩亮 赵腊才 茹伟 胡宇凡 |
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| 作者单位： | (中航工业西安航空计算技术研究所 民用机载电子设备研究室,陕西 西安 710068) |
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| 基金项目： | 航空科学基金资助项目(20141931001) |
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| 摘 要： | 在介绍Linux设备驱动程序、USB逻辑组织的基础上,针对某数据采集系统与PC机之间的USB通信实时性要求高、数据带宽高的特点,采用URB并结合DMA的方法,开展Linux环境下USB设备驱动程序的设计。通过读取大容量数据对驱动程序进行测试,单个USB端点数据读取速度可达30 MB/s,能满足系统需求。
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| 关 键 词： | Linux 字符设备驱动 USB逻辑组织 USB设备驱动 |
Development of USB Device Drivers of Linux |
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| ZHU Enliang,ZHAO Lacai,RU Wei,HU Yufan. Development of USB Device Drivers of Linux[J]. Electronic Science and Technology, 2016, 29(1): 108 |
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| Authors: | ZHU Enliang ZHAO Lacai RU Wei HU Yufan |
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| Affiliation: | (Civilian Vehicle-borne Electronic Devices Research Section,AVIC Xi'an Aeronautic Computing Technique Research Institute,Xi'an 710068,China) |
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| Abstract: | Linux platform is widely used now while the requirements of device driver based on this platform are needed by more and more developers.A URB combining with DMA development method for the real-time and high bandwidth USB communication between a data collection system and a PC is provided after a brief introduction to Linux device drivers and USB logical organization.The system requirements can be satisfied by this development method after large capacity data reading test of the driver.The reading speed of a single USB endpoint reaches 30 MB/s. |
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| Keywords: | Linux character device driver USB logical organization USB device driver, |
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