usb composite device

/* USB standard device descriptor */const u8 virtual_com_port_devicedescriptor [] = {0x12,/* blength * // The total length of the USB device descriptor is fixed to 18 bytes, therefore, this parameter is set to 12 h usb_device_descriptor_type,/* bdescriptortype * // The type value of the

Example assigning Host USB device to a Guest VMThis example was based on QEMU-KVM (0.15.0) as installed in Fedora 15. Would first show how does this manually, and second how to do it using the the Virt-manager tool. This HOWTO are limited to UHCI devices (no USB2 EHCI).Here we'll use a phone attached to the host:# Lsusb ... Bus 002 Device 003:id 18D1:4E11 Google

#!/bin/SH# Usage:./resetusb ARGUMENT (the keyword for your USB device)Var1=$1keyword=${var1:=Storage}debug=$ (LSUSB) bus=$ (lsusb|grep$keyword |Perl-ne"/\d+ (\d+) \d+ (\d+) +/; print QQ (\$1)") Device=$ (lsusb|grep$keyword |Perl-ne"/\d+ (\d+) \d+ (\d+) +/; print QQ (\$2)")Echo "/ * Usbreset--Send a USB port reset to a

Article Title: Use a USB storage device under Solaris. Linux is a technology channel of the IT lab in China. Some basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open-source systems 1. Earlier versions of Solaris vold cannot detect hot swapping immediately. You need to restart vold to identify it: 　 Insert the

When a USB device is plugged in to the host, the host uses a series of actions to enumerate the device configuration (the configuration is an enumeration state, which indicates the temporary State). These States are as follows: 1. Access state (attached): After a device is connected to a host, the host detects the ac

This idea is correct. Use this GUID: 53f56307-b6bf-11d0-94f2-00a0c91efb8b First, setupdigetclassdevs Then setupdienumdeviceinterfaces Setupdigetdeviceinterfacedetail can be used to obtain a device path. You can use this device path to createfile to open the device and obtain the handle. Then, use the deviceiocontrol function to obtain the serial number. Structure

Let's see Program In line 2, here is a judgment Statement, which is used to determine whether the inserted device is of the usbmsc_interface_class type. This constant is in usbmsc. the H file defines that if the device is not a USB storage device, the function is terminated, that is, the driver can only process

If you need to print with a USB memory device, follow these steps: Please read about USB memory instructions Second, insert USB memory device description Third, supported print file types To print a document from a

Base Class e0h (Wireless Controller)This base class was defined for devices, is Wireless controllers.Values not shown in the table below is reserved. These class codes is to being used in Interface descriptors, with the exception of the Bluetooth class code which can also b E used in a Device descriptor. Base Class Subclass Protocol Meaning e0h 01h 01h Bluetooth programming Interface. Get speci

In Linux, USB storage devices are managed as local storage devices, just like local disks. Therefore, after you enter the fdisk-l command, the USB storage device is listed with the local disk. Www.2cto.com the USB flash drive device name is sdb, which is simulated as a SCSI

Environment for attaching a Usb device to Centos in ESXi: www.2cto.com client: VMwarevSphereClient4.1.0 server: VMwareESXi4.11 virtual machine system: Windowsserver2003: CentOS6.3www. 2cto. comVMwareESXi4.1 supports US... environment for mounting Usb devices to Centos in ESXi: www.2cto.com Client: VMware vSphere Client 4.1.0 server: VMware ESXi 4.11 virtual machi

Linux system is usually automatically mounted USB devices, if not automatically mounted on the need to manually mount the USB device, then the Linux how to mount the USB device? How do you uninstall it when you don't need it? The following three types of information need to

1. When the VirtualBox and expansion packs are installed, the system will automatically generate Vboxusers user groups, add their own usernames to the Bvoxusers group, or you will not be able to use VBox.sudo usermod-g vboxusers your_user_name2. Using a USB device:Turn on the USB device option in the VirtualBox virtual machine configuration panel and tick the "St

1. Turn on USB debugging in your phoneGo to "Settings", "Application", "development" check "USB Debugger". This allows the device to be recognized by the PC when it is connected via USB.2. Install the driverTo connect your Android phone to your PC you need to install a driver, the tutorial is available in 2 ways: one i

Original URL: http://www.cnblogs.com/ericsun/archive/2013/06/10/3130679.htmlVirtual machines I have been using, not to say, windows, but sometimes some applications in the Windows experience is really better, such as Tencent QQ.I recently found my missing long 10moons revolver camera, which I bought in Zhongguancun when I was studying in Beijing. It cost me 100 yuan.Found after very feeling, so I intend to give my virtual machine inside QQ use up.As is known to all, VirtualBox uses a host

the upgrade, all files in logical partition 1 are copied to logical partition 2 for backup before the new esxi image is written to logical partition 1. The third MB logical partition is empty during initialization. It can be used as the storage of the kernel program fault diagnosis code. The fourth MB logical partition stores the VMware tool ISO file, vsphere client installer, other tools and drivers, and static storage. These extra files are not part of the vmkernel. The following is a deta

Sometimes when we plug the USB hard drive or U disk into the computer, we will encounter the "Unrecognized USB device" problem, repeated retries will not help, but the same USB device in other computers can be displayed normally. If you encounter this problem, you can refer

Last time, I was initially exposed to the mounting problem of Android USB client, so I wrote the first article about the feelings. There are still some problems in many places, some of which are not clear enough, so I want to continue writing. First, the last verification shows that the device can be mounted, but only one storage device can be mounted at a time.

What if the computer does not recognize the USB device? Normally, when we insert a USB device into our computer, the desktop will pop up some information on the computer trying to connect to this USB device when the WIN8 32-bit sy

USB storage devices, which we often use: U disk or removable hard disk. Sometimes, when we unplug a USB storage device, we are prompted that the storage device cannot be safely removed and the referenced file or folder is closed. Some netizens ' practice is to pull out directly. But what is the solution to the failure