android usb host example

system_profiler SPUSBDataType, view all USB devices in the Mac system, and find the corresponding vendor Vender ID. Find the corresponding usb hub connected to the Android mobile device and find the corresponding vendor's Vender ID. For example, if my test machine K-Touch T619-day phone cannot connect to adb, the corr

3.1 More than three big packs of Android.hardware.usb, ANDROID.MTP, ANDROID.NET.RTP! Android.mtp Allow connected camera and other devices to directly use the PTP (Image Transfer Protocol) MTP (Media Transfer Protocol). Keep the device connected, the top app can receive notifications, cancel, manage the files and storage of these devices, file transmission and metadata, etc. It provides us with the definition of PTP and MTP Mtpconstants, describes the mtpdevice of the PTP or MTP devices conne

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 Wi

1. Open the management-Device Manager of the computer and connect the Android device with USB (for Android devices to Enable USB debugging). You can see the USB device with a yellow question mark.2. Right-click the device to view properties-details, and select hardware ID in

Http://tianmeng126.blog.163.com/blog/static/10800956820115981114488/ After connecting to the Android phone via USB under untun, use adbdevicesThe following figure is displayed: List of devices attached ???????????? No Permissions The device name is displayed in ddms as well ????, The process name cannot be displayed, and the log cannot be viewed. I. Introduction to toolsAndroid-sdk-linux_x86/tools has a bu

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 section Located in frameworks/base/services/java/com/android/server/frameworks/base/wifi/

My host is very old and it takes several minutes to start an android simulator. But thanks to the fact that there is an android real machine, debugging directly on the Android phone is also a good choice. Next I will introduce how to use Android mobile phones to debug

My host is very old and it takes several minutes to start an android simulator. But thanks to the fact that there is an android real machine, debugging directly on the android phone is also a good choice. Next, I will introduce the steps required to debug android application

filter specific intent devices, the list method is useful. Use intent Filter You can specify an android. Hardware. USB. Action. usb_accessory_attached intent filter so that your application can discover special USB attachment devices. Together with the intent filter, you also need to specify a resource file that contains the properties of the

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. Secondly, what I said last time about the dri

filter specific Intent devices, the list method is useful. Use Intent Filter You can specify an android. hardware. usb. action. USB_ACCESSORY_ATTACHED Intent filter so that your application can discover special USB attachment devices. Together with the Intent filter, you also need to specify a resource file that contains the properties of the

Sometimes we may want to listen for some Usb or SDCard plugging events, which is actually very simple. When we do the plugging, such as Usb or SDCard, the android underlying layer will send the corresponding Intent to the upper layer for use, for example, SDCard or USB

networkmanagement service In this way, your tracker will be able to monitor the network device plugging, so as to maintain compatibility with WiFi, otherwise you do not know whether the WiFi or USB Nic corresponding to eth0 and eth1. Usbnetworkstatetracker calls networkutils to manipulate network devices. A typical method is to execute DHCP by calling Public native static Boolean rundhcp (string interfacename, dhcpinfo ipinfo ); Call the function i

One day someone asked: Why can't I identify the connection between Android 3530 and the host? The answer is as follows: The original Android USB driver was based on the gaeget framework, which was quite special. Not all systems supported it. Then I checked it online and said that Google has an

Preparations:1) Check the phone is root, because the phone needs to execute the su command to modify the Phone gateway, so must root, if there is no root reference (Nexus S 4.1.1) This address: http://www.teamandroid.com/2012/07/20/root-nexus-s-on-android-411-jelly-bean-jro03e-official-software-update/2) install the terminal and busybox on the mobile phone through the market. Step 1: System Setting-> wireless networks-> more-> tethering portables