一.问题描述 1.情景描述 笔者的物理主机系统是“windows7 64位”,想使用“摄像头录像大师”.这个软件在录制视频的过程中,需要调用windows自带的"windows media player"编码器.但是,由于“windos7 64位”缺少此编码器,而且网上也找不到安装的方法.无奈的情况下,只有利用虚拟机安装一个"windows7 32位"的系统,在虚拟机上使用“摄像头录像大师”. 2.环境描述 主机硬件:2个"USB 3.0"(接口…

转:http://www.linux-mtd.infradead.org/faq/general.html#L_mtd_what Note, you can find Ukranian translation of this page by Alyona Lompar (alyona.lompar@consultant.com) here. We have not assessed the contents, though. Table of contents Is an MTD device…

就是在spyder跑上一篇文章的代码然后就报错: Attempting to fetch value instead of handling error Internal: failed to get device attribute 13 for device 0: CUDA_ERROR_UNKNOWN: 问就是显卡内存太次了..新开terminal然后重试吧. 555 该换了…

问题: iphone5 手机连接USB出现例如以下弹框 watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvYW5nZWwyMnh1/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast" alt=""> 解决方法: 定位到C:\Program Files\Common Files\Apple\Mobile Device Support\…

转自:http://blog.csdn.net/thl789/article/details/6723350 Linux 2.6的设备驱动模型中,所有的device都是通过Bus相连.device_register() / driver_register()执行时通过枚举BUS上的Driver/Device来实现绑定,本文详解这一过程.这是整个LINUX设备驱动的基础,PLATFORM设备,I2C上的设备等诸设备的注册最终也是调用本文讲述的注册函数来实现的. Linux Device的注册最终都…

转自:http://www.cnblogs.com/haimeng2010/p/3582403.html 目录: 1.platform_device注册过程 2.platform_driver注册过程 从 Linux 2.6 起引入了一套新的驱动管理和注册机制 :Platform_device 和 Platform_driver . Linux 中大部分的设备驱动,都可以使用这套机制 ,  设备用 Platform_device 表示,驱动用 Platform_driver 进行注册. Linu…

http://www.kalinskyassociates.com/Wpaper4.html Architecture of Device I/O Drivers Many embedded systems developers will tell you that writing a device driver consists of a lot of "bit-bashing and register-twiddling" to convince some ornery unit…

解决方法:重启服务 一.关闭 adb kill-server 二.启动 adb start-server 三.连接 adb connect 192.168.1.10 四.查看设备 adb devices 输出 List of devices attached device…

在VMware的虚拟机中克隆CentOS,在重启网卡的时候报错: Bringing up interface eth0:  Error: No suitable device found: no device found for connection 'System eth0'. Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: E…

http://community.silabs.com/t5/Interface-Knowledge-Base/Windows-USB-Device-Path/ta-p/114059 Windows operating systems rely on a unique device path to uniquely identify each USB device/interface connected to the system. A device path string is used to…

http://www.velleman.eu/images/tmp/usbfind.c #ifdef __cplusplus extern "C" { #endif #include <windows.h> #include <tchar.h> #include <setupapi.h> #include <initguid.h> #include <stdio.h> // This is the GUID for the U…

Example Assigning Host USB device to a Guest VM This example is based on qemu-kvm (0.15.0) as installed in Fedora 15. Will first show how to do this manually, and second how to do it using the virt-manager tool. This HOWTO is limited to UHCI devices…

本文转载自:https://blog.csdn.net/autumn20080101/article/details/52776863 科普下USB复合设备和USB组合设备的区别. 关键字 Communication Device Class,简称CDC USB Compound Device,USB复合设备 USB Composite Device,USB组合设备 摘要 Compound Device内嵌Hub和多个Function,每个Function都相当于一个独立的USB外设,有自己的P…

struct tagDrives { WCHAR letter; WCHAR volume[ BUFFER_SIZE ]; } g_drives[ ]; // WCHAR GetUSBDrive( ) { LPTSTR lpDevID; WCHAR cDrive; DWORD dwSize = BUFFER_SIZE; // Get all removable disks on user laptop. if ( !GetAllRemovableDisks( ) ) { WRITELOG( "E…

usb host和device的关系 疑问1:我们通常所用的u盘应该是usb device吧?我想这个不用多说,呵呵. ===============恩.============== 疑问2:我们通常看到的u 盘里面的构造是否也是总线结构的,比如有一个usb总线什么的? =============内部就没有USB总线了.可以是一个MCU控制一个存储芯片(例如FLASH)和USB接口芯片.也可以是其它的专用芯片.============= 疑问3:usb术语中的endpoint是否在host和de…

在VMware的虚拟机中克隆CentOS,在重启网卡的时候报错:   Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: Error: No suitable device found: no device found for connection 'System eth0'. [FAILED] 解决办法: 首先,打开/etc/ude…

文章目录 1. 简介 2. Platform Layer 2.1 Platform Device 2.2 Platform Driver 3. UDC/Gadget Layer 3.1 Gadget Bus 3.2 Gadget Device 3.2.1 Endpoint Alloc 3.2.2 EndPoint Access 3.2.3 UDC Control 3.3 Gadget Driver (Configfs) 3.3.1 configfs 使用 3.3.2 configfs 层次结构…

catalogue . 引言 . Device Class Definition for Human Interface Devices (HID) . USB HID Report Descriptors . arduino USB Keyboard definition . USB Host Shield for Arduino分类 . USB Host Shield for Arduino datasheet . USB Host Library Rev.2.0 . USB Keyboar…

去年地摊买的破无线鼠标坏掉了.看上微软的Designer Mouse蓝牙鼠,但是买之前我要确认我能不能驱起来. 这款鼠标只支持蓝牙4.0.系统支持windows8以上,不支持xp和windows7. 其他系统支持mac和android,没写linux. 由于之前也没搞过蓝牙设备,所以需要了解一下linux下的蓝牙设备.然后在解决鼠标的问题. 需要解决的问题: 1. archlinux下蓝牙设备的使用与配置 2. 确定T450的蓝牙版本. 3. 驱鼠标. 首先,按照惯例还是读一下万事万灵的arch…

Android USB Connections Explained: MTP, PTP, and USB Mass Storage Older Android devices support USB mass storage for transferring files back and forth with a computer. Modern Android devices use the MTP or PTP protocols — you can choose which one you…

# # List of USB ID's # # Maintained by Vojtech Pavlik <vojtech@suse.cz> # If you have any new entries, send them to the maintainer. # The latest version can be obtained from # http://www.linux-usb.org/usb.ids # # $Id: usb.ids,v 1.139 2004/02/14 00:1…

源:STM32 USB虚拟串口 串口调试在项目中被使用越来越多,串口资源的紧缺也变的尤为突出.很多本本人群,更是深有体会,不准备一个USB转串口工具就没办法进行开发.本章节来简单概述STM32低端芯片上的USB虚拟串口的移植.在官方DEMO中已经提供了现成的程序,这里对修改方法做简单说明. 官方demo及驱动程序,我存放在百度盘: http://pan.baidu.com/s/1hq3moE4 首先打开官方demo我们开始进行移植,第一步复制我们可用的文件,操作如下: Projects\Virt…

第一步USB通信: Usb设备有两种,Host与Accessory 简单来说是主模式与从模式,主模式则android设备给外设供电,反之,外设给android设备充电,对于小票打印,使用的是Host模式 用到以下几个类: 1.UsbManager: 这个类用来获取USB设备-UsbDevice UsbManager manager = (UsbManager) getSystemService(Context.USB_SERVICE); // 获取设备 HashMap<String, UsbDe…

USB Host When your Android-powered device is in USB host mode, it acts as the USB host, powers the bus, and enumerates connected USB devices. USB host mode is supported in Android 3.1 and higher. 当您的Android设备处于USB主机模式时,它充当USB主机,为总线供电,并枚举连接的USB设备.Andr…

AT91 USB Composite Driver Implementation 1. Introduction The USB Composite Device is a general way to integrate two or more functions into one single device. It is defined in the USB Specification Revision 2.0, as "A device that has multiple interfac…

Communication Device Class,简称CDCUSB Compound Device,USB复合设备USB Composite Device,USB组合设备 摘要USB复合设备 Compound Device内嵌Hub和多个Function,每个Function都相当于一个独立的USB外设,有自己的PID/VID.USB组合设备Composite Device内只有一个Function,只有一套PID/VID,通过将不同的interface定义为不同的类来实现多个功能的组合.…

Hi guys,I am in need of your help, unfortunately STs documentation is lacking some information here. I am basically trying to implement a USB device (CDC-ACM to be precise) that utilizes suspend/wakeup. I am using the "STM32_USB-Host-Device_Lib_V2.1.…

Linux USB gadget configured through configfs 25th April 2013 Overview======== A USB Linux Gadget is a device which has a UDC (USB Device Controller) and canbe connected to a USB Host to extend it with additional functions like a serialport or a mass…

http://social.msdn.microsoft.com/Forums/windowsdesktop/zh-CN/35620a05-43be-46a8-8cbe-846bc8295d85/usb-mass-storage-cWe have an USB mass storage / Memory Stick device with an additional device on it. We communicate with PassThrough mechanism to the de…

来源:http://www.bverhue.nl/g2dev/?p=65 Delphi Android USB Interface with the G2 Leave a reply I first tried to use Libusb to connect my Android tablet with the G2. I managed to compile the libusb sources for Android and call it from the application, on…