Android USB Connections Explained:mtp, PTP, and USB Mass StorageOlder Android devices support USB mass storage for transferring files back and forth with a computer. Modern Android devices use the MTP or PTP protocols-you can choose which one prefer.To select a
devices currently use USB-based protocols. The equipment supporting MTP on the market has Motorola's Z6, U9, E8 and so on, as well as the Sony NWZ-A81X series. In short, more and more devices are beginning to support MTP. Microsoft Official has a PlaysForSure certification, if your device through the Microsoft test, you will be authorized to give you a PlaysForSure logo.
MTP in Android
MTP is full of media Transfer Protocol (Media Transfer Protocol)
Original Address http://www.dzsc.com/data/html/2011-1-17/88338.html1 IntroductionIn distributed systems, a global time is often needed to determine the sequence of events in the system, to coordinate the transmission of various messages, and to control and monitor the state of the system. It is necessary to unify the local time of each part in the system and clock synchronization. With the widespread application of distributed simulation system and test system on the network, how to provide reli
1.PTP ModelsThe PTP (point-to-point) model is queue-based, and for the PTP message model its message is intended to be a message queue (queue), and the message producer always sends the message to the message queue each time it is sent. Message consumers always read messages from the message queue. Advanced Queue messages are first read by the message consumer.Th
1.PTP Models
The PTP (point-to-point) model is queue-based, and for the PTP message model its message is intended to be a message queue (queue), and the message producer always sends the message to the message queue each time it is sent. Message consumers always read messages from the message queue. Advanced Queue messages are first read by the message consumer.
architecture emerged, so JMS came out.
Here, we use Programming to Implement message transmission in the PTP model. Of course, either model is inseparable from the message server.
Because the server is based on the weblogic12c server, and the version of 12 has changed significantly compared with the previous version, to create a queue, you must first create a JMS module.
Step 1: Create persistent storage:
Click service> persistent storage> New> Sel
How to disable USB flash drives, disable USB storage devices, and prohibit USB flash drives from copying computer filesUSB flash drives and mobile hard disks are currently widely used USB storage tools, which greatly facilitates work. But at the same time, employees can easily copy computer files through
Usb-c interface Everyone may not be unfamiliar, Apple recently released a Mac 12 notebook only equipped with a USB-C interface to become the focus of digital enthusiasts, but also to allow more friends to recognize the Usb-c interface. What is the Usb-c interface? What is the difference between it and the
USB-HDD, USB-ZIP, USB-FDD boot
HDD, short for harddiskdrive, is the English name of the hard drive. The most basic computer memory, we often say that disk C, disk D and other disks are hard drive, but we generally referred to as hard drive. Modern hard disk capacity is generally 40g, 80g, 120g, 160g and so on, currently the highest desktop level hard di
are configurable?
public static final String USB_FUNCTION_MASS_STORAGE = mass_storage; /** * Name of the adb USB function. * Used in extras for the {@link #ACTION_USB_STATE} broadcast * * {@hide} */ public static final String USB_FUNCTION_ADB = adb; /** * Name of the RNDIS ethernet USB function. * Used in extras for the {@link #ACTION_USB_STATE} broadcast * * {
Step 1: view the USB flash disk Information First, run the sudo fdisk-l command to check where the USB flash disk is located, that is, where the USB disk is mounted.
(If the fdisk-l command is used directly without any results, you must add sudo to run it as an administrator)
After viewing this information, you may see the following information:
Disk/dev/SDA: 25
Because the USB driver in Linux is already very complete,You only need to follow the following configuration. After the configuration, recompile the kernel and install it on the Development Board.
1. Modify make menuconfig
System type -->
Input core support -->
SCSI device support --->
[*] Legacy/proc/SCSI/support
* ** SCSI support type (disk, tape, CD-ROM )***
[*] Hid devices --->
--- Hid Dev
Some friends asked why the optical drive will be stuck on the disc. In fact, it is not due to the poor quality of the disc or the aging of the optical drive laser head.
When the optical drive is reading some unclear areas of the optical drive, you need to repeat it to adjust the position and power of the optical drive to read data. At this time, the optical drive consumes a lot of CPU, this often causes false crashes.
At this time, you just need to take out the CD in the optical drive and th
How to enable the USB flash drive on the MSI motherboard, how to enable the USB flash drive on the MSI motherboard Bios, and how to enable the USB flash drive on the MSI motherboard bios
Press the Delete key on the keyboard repeatedly to go to the main interface of the motherboard BIOS. (See)
Use the keyboard arrow key, select "Advanced BIOS Features", an
Code for reading the serial number of usb hdd (USB mobile hard disk information), USB HDD
Code, model, and split of the serial number of the usb hdd.
Visual Studio 2010 is successfully compiled.
The Code uses the related code in smartata. c In CrystalDiskInfo:
The following connection explains why scsi-related code req
How to disable USB flash drives on the company's computer, prohibit USB flash drives from copying computer files on the company's computer, and prohibit USB flash drives on the computerAt present, USB flash drives are frequently used, and the read/write speed and storage space are getting bigger and bigger. Although it
One-click USB flash drive _ How to use a USB flash drive to install the system-Windows XP system and Windows 7 system tutorial-one-click USB flash drive boot disk creation tool tutorialStep 1: preparations and precautions before preparation
1. Download the one-click USB flash drive system software (Note: The computer m
) { updateUsbState(); updateAudioSourceFunction(); } break;4. What types of usb are configurable?
public static final String USB_FUNCTION_MASS_STORAGE = "mass_storage"; /** * Name of the adb USB function. * Used in extras for the {@link #ACTION_USB_STATE} broadcast * * {@hide} */ public static fina
What about USB devices that are not recognized by USB tips? USB interface Devices in our life is very common, not as common as our USB mouse, USB keyboard, USB speakers, USBU disk, etc., but the use of
3.1Three additional packages: Android. Hardware. USB, Android. MTP, and android.net. RTP!
USB, MTP, RTP------- There are three words, all bloody, so people are excited and excited. Why don't you get started with Google?
Android. MTP
Allow connected camera and other devices to directly use PTP (image transfer protocol) MTP (Media transfer protocol ).
Keep the
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