connected to a computer?Answer 2: PC and USB devices are subject to some specifications.For example, when the USB device is connected to the computer, the PC will send out "What are you?" "The USB device must answer" I am XXX "and the language of the answer must be Chinese;
windows 7 was tested successfully, and the operation on the computer was much simpler than the XP system. Take a look at the following actions**********************************************************************************************One: Related preparation**************** 1, the mobile phone system is 2.2. 2, the phone needs root permission, and check the USB debugging.3, the computer installed a good Samsung
types of USB Drivers: drivers on the host system and drivers on the device. From the host's perspective, a common host is a PC.The driver of the USB device in the host system controls the USB device to be inserted, while the driver of the
Mbps, supports concurrent operations on multiple data streams and multiple devices, and supports hot swapping of peripherals.
At present, although the USB interface has only developed 2 generations (USB 1.1/, USB), USB integrates all the advantages of a multi-platform standard-including cost reduction and compatibilit
Download the following four software. For installation instructions, refer to the following tutorial.
(1)D908 driver Samsung PC Studio 3(61.0 MB). The link is invalid. Find it online!(2) softtick PPP
(3) Samsung XXXX Java Uploader Chinese edition
(4) jadwizard 1.0 (drag the jar to it without a JAD file)
If the downloa
With the increasing of USB devices, development of USB driver is becoming more and more important in embedded development. Windows CE's support for USB 2.0 is a huge boost to this wave of new technologies. The author of this article analyzes his own use-driven development experience, hoping that readers can take less d
To do USB-related things in wince, we must first understand some concepts, which is very important.
(1) host and FunctionFirst, you must know that the USB is a master-slave structure. For PCs and mobile phones, the PC end is the master end, called the host, and the mobile phone is the slave end, usually called the client. However, this term has changed in wince.
Vmware7 USB Arbitration Service andSony Ericsson mobile PC kit conflict
Install Sony EricssonAfter the mobile PC kit, virtual machines started by VMware cannot recognize USB flash drives and mobile hard disks.
Start VMware manuallyThe following message is displayed when the USB
.
Endpoint descriptor: the endpoint address, direction, and type. It supports the maximum package size. If it is an end point of the interrupt type, it also includes the round inquiry frequency rate. In Linux kernel, USB end points are described using the usb_host_endpoint structure. The USB end point description is defined as the usb_endpoint_descriptor structure.
String descriptor: other descriptors p
USB device: Mainly completes the processing of the USB protocol and data exchange.
PC program: consists of USB communication program and user service program. The user service program communicates with the system USB di through the USB
1. USB is a master-slave structureAll USB transmissions are initiated from the USB host side, and the USB device does not have the ability to "proactively" notify the USB host.Example: A USB mouse to swipe a moment to generate dat
Xixi teach you how to use USB to sync wince with PC (reprinted please note the Source: http://www.cnblogs.com/c51port/archive/2011/03/11/1980354.html)
How to use USB to synchronize wince with PC
Previously, WinCE can be used to synchronize the network cable with the PC, but
Delphi sometimes cannot connect to debug some phones, solutions:1. Install Google USB Driver2. Check the phone or tablet USB vid,pid via Device Manager3. Modify the Android_winusb.inf on your computer to add the vid,pid found in the 2nd step to the INF.For example:; Samsung Galaxy S3%singleadbinterface% = usb_install, usb
S3C2440 provides a USB slave interface. We can use it to simulate 2440 as a USB flash drive and access 2440 directly from the computer as a drive letter.
I. Kernel configurationUSB support
USB Peripheral Controller (S3C2410 USB device controller) --->
S3C2410 USB device con
Transplantation of USB Wifi module RT3070 driver and wifirt3070 driver on the tianembedded E9 Platform
Due to project work requirements, point-to-point and multi-point transmission of wifi must be implemented on the embedded E9 platform.
Wifi module chip: Reiling 3070 Chip
Embedded platform: E9 (ARM)
Cross-compilation environment: arm-none-linux-gnueabi
1. Firs
usb_device_descriptor.idproduct2> as root to edit the file/etc/udev/rules.d/51-android.rules, in the newly installed system, the default is not this file, you need to create it first.sudo gedit/etc/udev/rules.d/51-android.rules3> in the open 51-android.rules file, add the following line rule for each vendor:subsystem== "USB", attr{idvendor}== "15d9", mode= "0666", group= "Plugdev"Where the id "15d9" indicates that it is your mobile device; The value
B socket. Type a plugs are not plugged into a type B socket and vice versa.miniUSB is also divided into a type, B type, but added an AB type (not blood type Ah, do not make mistake, no O-type ^_^). Since it is called MINIUSB, then of course it is very small, mainly for portable devices, such as MP3, mobile phones, digital cameras and so on. USB is a master multi-slave structure that can only have one host at a time. Like a
running a Linux system on the Development Board, you can use the cross-compilation debugging environment to connect the development report to a PC. In this way, the debugging information can be printed on the terminal of the host through the serial port. Otg_ip can connect to the PHY chip through the ULPI interface and connect to the USB device.
After the device controller
The Linux USB Gadget device driver can be used to implement some interesting functions. For example, 1. A storage device in an embedded product or a partition of a storage device, it can be used as a USB flash disk by PC. It can easily complete file interaction. This function is widely used in mobile phones, digital ca
other is to use ARM-LINUX-GNUEABI-GCC for cross-compiling. The second way I used it, GitHub provided the version I compiled3. Copy firmware to Orangepi/lib/firmware, Orangepi Wily does not provide firmware so we have to manually copy firmware from somewhere else, I copied it from Ubuntu on my PC.The principle of firmware.c work:When USB WiFi is plugged in, the RTL8192CU driver requests firmware, and the ke
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