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Author: Dong Yuxin, Zhang Donglai Source: Micro-Computer Information1. Introduction
Hardware driver development is the foundation of embedded development. With the popularization of USB devices, the development of USB device drivers has become increasingly important in embedded development.
To support different types of platform peripherals that can be connected
Scenario
After the first installation of the system, the usb cannot be used. The usb serial interface driver is not installed. It is normal that the NIC driver cannot be installed. How can I install the driver in this case?
Solution
Check whether there is no
USB 3g nic Driver ProcessIntroductionFirst, we will introduce the overall driver mode in Linux:The Linux kernel version based on this article is 2.6.36 (and the Huawei em770w driver is customized by friendlyarm.Therefore, this driver can be downloaded from a friendly officia
The first contact with the OS-related device driver writing, it is very interesting, in order to not forget what I have seen, notes and summary of course indispensable, not to mention I decided to work for embedded. Well, to get to the next step, I'll talk about the harvest of this time and share with you the driver development of Linux. But this time only for Linux USB
In the first half of this year, I transplanted a Linux driver to a common vimicro camera on the market to an Embedded Development Board. The development environment is:
OS: linux2.6.9
Compile: Cross 3.3.2
CPU: Intel PXA270
Camera type: vimicro zc301p + hv7131r
The driver source code used is based on the free software spca5xx. Some minor changes were made based on the source code. Record it.
after her mission is basically completed, then she gave Urb to whom? This is the previously mentioned USB controller driver, host.As for host, there are a lot of money on the market now, and if your boss gives you the most mature image of EHCI, you're lucky. This basic does not need you to write, as long as a little modification, to register her on the bus can. If you are unfortunate enough to use a host l
IPhone 4S is connected to a computer and cannot recognize iPhone devices: Apple mobile device USB driver Driver Installation failure shows yellow exclamation mark Solution
Apple mobile device USB driver Driver Installation failur
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 cameras, and other products. 2. After an embedd
Introduction
The embedded linux system environment is widely used in the embedded field because of its ease of transplantation and cutting, small kernel, high efficiency, integrity, open source code, and excellent performance. Linux USB device source code mainly includes the massive storage devices of USB device, serial devices, network devices, and other device drivers and drivers of various
Author:Liu Hongtao, a lecturer at Huaqing vision embedded College.
A Linux USB driver consists of two parts. Some are USB device controller (UDC) drivers and others are hardware-independent function drivers (such as mouse, USB flash drive, USB serial port,
USB connection mode installation drive:
1, put the drive CD into the computer optical drive, and then open the disc, and then pop-up window we select "I have read and accept this License agreement", click Next, as shown in the following figure:
2, the following interface we selected "USB":
3, check the "software and utilities to install", and then click Next Action:
4, click "Advanced Options"-"Br
driver should register on the bus, or be listed. in the USB system, each driver of a USB device has a struct usb_driver structure. The Code is as follows: Include/Linux/USB. h
485 /*--------------------------------------------------------------------------*/486487 /**488 *
It is estimated that TP-LINK-TL-WN220M with the driver of the problem, tossing for a long time have not done. I looked at it again today and found that this item still does not appear in the list. Disappointed, just look at all the USB wireless network Card, suddenly found a Card: jensenscandinavia6511wlanminiusb dongle is USB, and its chip is also SiS162u, let's
This article is intended for intel? How to install the Android USB driver package. With this package, you can connect a Windows *-based machine to an Intel Atom? The Android device of the processor.System Requirements
Hardware requirements:Android mobile devices with the Intel Atom processor Z2460 are installed.One USB-USB
The following is a simple example to describe the development process of the driver.
For example, we have a USB mouse device. The device information is described as follows:
Device descriptor:
Bcdusb: 0x0100
Bdeviceclass: 0x00
Bdevicesubclass: 0x00
Bdeviceprotocol: 0x00
Bmaxpacketsize0: 0x08 (8)
Idvendor: 0x05e3 (Genesys Logic Inc .)
Idproduct: 0x0001
Bcddevice: 0x0101
Imanufacturer: 0x00
Iproduct: 0x01
Ise
$ lsMakefileModule. symvers secbulk. c secbulk. Ko secbulk. Mod. c secbulk. Mod. O secbulk. o
Use the insmod command to load the module. This requires the root permission.$ Sudo insmod./secbulk. Ko
After loading, run the dmesg command to check that the module has been successfully loaded.[2, 238.007970] secbulk: secbulk loaded[2, 238.009101] usbcore: registered new interface driver secbulk
2.3 compile the dnw Writing Tool$ CD dnw$ Gcc-O dnw. cAfter
Invalid URB function.
Usbd_status_invalid_parameter
0x80000300
Invalid parameter.
Usbd_status_error_busy
0x80000400
The client driver caused an error by attempting to close a endpoint, interface, or configuration handle with outstanding Transfers.
Usbd_status_request_failed
0x80000500
The hub driver cannot complete a URB request.
U
operated twice (the driver must be loaded twice );According to the above situation, solution 4 should be ideal. However, using command line operations is too cumbersome and not conducive to operations. Therefore, we recommend a graphical tool, which is officially provided by Intel.Procedure:1. Download and decompress the Windows 7 USB Creator utility;2. Insert t
the module with the Insmod command, which requires root privileges$sudo Insmod./secbulk.koAfter loading, use the DMESG command to see that the module has been successfully loaded[238.007970] Secbulk:secbulk loaded[238.009101] usbcore:registered new Interface driver Secbulk2.3 Compiling the DNW write tool$CD DNW$GCC-O dnw dnw.cBuild executable file after successful compilation DNW==========================It is important to use DMESG to see if the
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