reprint Please indicate source: Http://blog.csdn.net/Righthek Thank you! The previous article has mentioned that the most important two functions of the USB interface in the WiFi module are Usb_read_port () and Usb_write_port (). So how do they relate to WiFi? We can analyze from the following three aspects:1, the first need to clear the
This article takes the RealTek 8192cu WiFi module as an example to introduce the debugging notes of USB WiFi in jelly bean 4.1.
1. Overview of wifi disconnection
If the Wi-Fi cannot be opened, you can select the WiFi option under the settings of the UI and set it to on, but
A. Android platform WiFi Basic code path
1. wpa_supplicant Source Section
external/wpa_supplicant_6/
Build library libwpa_client.so and daemon wpa_supplicant
2. WiFi HAL Layer Code
Located in hardware/libhardware_legary/wifi/
3. The JNI part of WiFi
Located in Frameworks/base/core/jni/android_net_wifi_wifi.cpp
4. Java
Transplantation of rt2870 USB wifi on mx53 Android platform
There are a lot of porting tutorials for USB wifi on the Linux platform online, but there are few complete tutorials for porting on Android. It took a whole week to transplant this driver, here are the detailed transplant notes for this week.
I. Compile the
ICOM A2 Wifi a2+b+c 2014.4V Engineers Version is a professional and best diagnostic and programming OBD2 scanner for BMW. Recently, many fellows called me for Super BWM ICOM A2 USB WIFI setting problem. Here is some successful tips for sharing.1.Insert USB WiFi to the
recently, the company has given a task, the app needs a mobile phone external USB camera, the problem is that the phone outside the other USB devices, the phone can not connect with the PC, can not be on the PC side through Eclipse and other viewing log information, Debugging is particularly troublesome, because even if the program jumps, you do not see log or the cause of the program crashes. Just one co
Since the millet mobile phone, the time to do more Android, especially wireless internet use. At home There is a wireless router, mobile phone to see a movie is very good. Sometimes in the office to transfer data, and do not want to frequently dial the vulnerable data interface, so consider also want to get a WiFi source. (Extension: Win7 laptop One-click Set WiFi)
Consider two scenarios
Plan One: Buy a w
Kali linux hack wifi password how to mount a USB wireless card time: 2014-10-12 Source: Server home Contributor: RootThe first thing I want to say is that the WiFi password hack is not as easy as imagined, there is no one can crack any type of WiFi password tools or solutions exist. Although you can find a lot of tutor
ELM327 can divided into different categories according to the different ways1) Operating SystemELM327 is designed to work on various systems, Android and PC system, Android and iOS system, Android, iOS and PC system, Android and Symbian system, IOS system only etc. Different system based ELM327 scanners highlights Different features, also differs in software installation and usage. Users had better to pick up one, that meets their PHONE/PC requirements.2) Connection ModeELM327 Products is design
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
Are you still using a USB cable to connect your mobile phone to access sdcard ?, You are out. This article will tell you that if you connect your laptop to your mobile phone through wifi and quickly access sdcard, you certainly do not need a wireless router.
Prerequisites
The laptop system is windows 7, and the wireless network card is normal and the driver is normal.
Android phones support
powered (non-isolated cable), DC 5V DC 30mA.Full transparent data conversion.Compatible with any Hart protocol.1.3 Product FeaturesBuilt-in isolated dc24v output provides power and communication to second-line instrumentation to minimize wiring.The Hart signal is transmitted by means of an isolated transformer.Built-in high-precision loop 250ω resistor, communication test, no additional resistance required.With switch, can be converted with or without WiFiThe Panel has a light and the converter
purchased today. D-Link dwl-g122 usb wifi dongle. The device can be supported by Linux and there are several ways to install the driver:
using ndiswrapper install directly Windows xp version (currently ndiswrapper supports only Xp version of the driver files ( *.inf ).
directly from Realtek download the appropriate driver. the name of the Windows driver file, such as Net8192su.inf, can
Android logcat Method for viewing non-wifi/usb devices, androidlogcatAndroid: how to view logcat without wifi/usb devices
A custom Android device with wifi removed. I need to debug a USB device so that I cannot use
Hardware platform: Freescale MX258 Development Board
Operating system: Linux2.6.31
wifi:rt2860 USB WiFi Module
Cross-compilation environment: GCC version 4.1.2
Debugging steps:
The first step: testing the USB host interface
To set the USB host to kernel mode in Menuconfig:
After recompiling the kernel, start the Dev
ORANGEPI-PC + ubuntu 14.04 natively supports firmware reading, the reason why the RTL8192CU firmware is not loaded is because ORANGEPI-PC's Ubuntu 14.04 (trusty) No firmware providedAll we need to do is copy firmware from somewhere else to Orangepi/lib/firmware, I'm a copy of Ubuntu from my laptop firmwareWhen the NIC is loaded, because there is no interface, so we need to configure the network card with the command line, I use the following methods:1. Change the/etc/network/interfaces to add th
-change the adapter settings, right-click "Local Connection"-properties, and switch to the "share" tab
Check both. Select the wireless network card in "Home Network Connection. OK. If an error occurs, check whether the Firewall Service is disabled. To open a firewall, follow these steps.
"Start running-enter services. msc", find Windows Firewall, double-click to set the Startup Type to "automatic", and then start the service. OK.
After setting this way, return to the TP-LINK interface. Enable S
Bought a WiFi Pro e5771h-937 no line, has been wanting to use under Linux, official documents also do not have Linux under the instructions, their own search data research, and test success.Under Centos7, the Rndis_host.ko and Usbnet.ko drivers can be loaded directly by running the following modprobe rndis_host command650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M00/9D/61/wKioL1l_IIDByFPDAAA-fMW98Yk719.jpg-wh_500x0-wm_ 3-wmp_4-s_3484465064.
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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