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实现对现有USB主控制器,集线器及其设备的识别;有环境设置的说明和代码的部分解释-The realization of the existing USB host controller, hub and its equipment identification environmental settings and code explanations
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This a sample schematics using uPD720114 USB hub controller chip. Can be used this schematics as reference in your Hardware design. Cheers-This is a sample schematics using uPD720114 USB hub controller chip. Can be used this schematics as reference i
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The good news is you don’t even need to bother reading the entire USB standard. Some chapters were churned
out by marketing, others aimed at the lower link layer normally taken care off by your USB controller IC and a
couple aimed at host and hub
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介绍linux下的usb架构,包括控制器模块/hub模块/usb core/设备功能部分-Introduced under linux usb architecture, including the controller module/hub module/usb core/equipment functional part
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此代码是遍历pc上usb设备。
包含控制器 hub port 设配id 等信息
usb其实和串口是一样的,其端口也是固定的(如果你不接扩展hub)。
有时一台电脑接多个相同的usb设备,如果接连个摄像头(前后各一个),我们如果区分打开的是哪一个呢?
1、先把usb设备先遍历出来,得到usb信息(设备串等)。
2、通过打开usb设备时返回信息(这个很重要 //usb#vid_1d27&pid_0600#5&10ef021e&0&5#{c3b5f022-5a42-1980-
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此代码是遍历pc上usb设备。
包含控制器 hub port 设配id 等信息-This code is to traverse pc usb devices. Contains controller hub port with id
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Wireless USB Host Controller Root Hub operations for Linux.
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Freescale QUICC Engine USB Host Controller Driver for Linux v2.13.6.
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OHCI HCD (Host Controller Driver) for USB.
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Driver for SMSC USB3503 USB 2.0 hub controller driver.
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Universal Host Controller Interface driver for USB.
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Freescale QUICC Engine USB Host Controller Driver.
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Wireless USB Host Controller Root Hub operations.
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OHCI HCD (Host Controller Driver) for USB.
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Multimedia
USB Keyboard
Controller with
Embedded Hub
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CH374是一个USB总线的通用接口芯片,支持USB-HOST主机方式和USB-DEVICE/SLAVE设备方式,内置3端口HUB根集线器,支持低速和全速的控制传输、批量传输、中断传输以及同步/等时传输。在本地端,CH374具有8位数据总线和读、写、片选控制线以及中断输出,可以方便地挂接到单片机/DSP/MCU/MPU等控制器的系统总线上。除此之外,CH374还提供了节约I/O引脚的SPI串行通讯方式,通过3线或者4线SPI串行接口以及中断输出与单片机/DSP/MCU/MPU等相连接。(CH37
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