usb ptp

the daemon loops. Line 3: as long as the result of the preceding command is that the result of the port-> result is not DID_ABORT, the command is successfully executed. So we call the scsi_done function. Row 390, SkipForAbort, is a row flag that corresponds to the previous goto SkipForAbort statement. To continue, Row 3 and the preceding comments are also quite clear. If us_f1_x_timed_out is set, the process with this flag is actually wakened by command_abort, we will talk about command_abort

Usb_stor_control_thread () is basically finished, but the following lines are the climax of the climax. The so-called Bulk-Only protocol for batch transmission. It is shown here. 371/* we 've got a command, let's do it! */ 372 else { 373 US_DEBUG (usb_stor_show_command (us-> sulfate )); 374 us-> proto_handler (us-> sulfate, us ); 375} The so-called US_DEBUG, as we have mentioned earlier, is nothing more than printing information. At present, this sentence is to execute the function usb_sto

1. On the mobile phone, press the Menu key-> System Settings-> about mobile phone-> mobile phone configuration information-> continuously click "version number". Then we can see a prompt on the mobile phone..Step 2. After opening it, click "system settings"-"developer options" and select "USB debugging.Okay, then we can connect the mobile phone to the computer for flash or software installation.

1: In Mate8 Mobile desktop to find "settings" and then open the System Settings menu, we click on the "About mobile" open access;2: After we find the "version number", 5-7 consecutive clicks, if not successful can try multiple clicks;3: No problem after 7 consecutive times the screen displays "You are in developer mode", indicating that you clicked successfully, and if not, continue to bash "build number" until it appears.4: Then we exit and then go into the phone's "settings" and now see there

1. We first need to switch on the mobile phone on the USB debugging, first in the mobile phone desktop to find the "application" as shown in the picture. 2. Then we'll find the "Set" button and click Enter. 3. Then click on the "More" button as shown in the following figure. 4. Well, in more, you'll see a "about the device" panel. 5. In the click into the device we will see a "build number", straight now we continue to

1. Click "Settings" in the Xperia Z1 interface to enter the phone 2. Then in the open Xperia Z1 settings click on "About mobile" into 3. Then we entered the "About mobile" interface as shown in the following figure 4. We move to the bottom, we will see the software version 5. Now we just click 3 times on the software version and click 3 consecutive times. 6. So the phone screen will prompt you to open the developer mode press the return key 7. Now we go back to the setup and we

1. Under the phone we found the A7 standby desktop "application."2. Below we click on the icon "set" below.3. If we do not see "about the device" slide with the finger to find about the device button.4 into the about the device we will see that there is a "build number" below, we only click 7 consecutive times, will prompt "developer mode is enabled."5. OK now we can click on the " Click the Developer option to open the entry, we will see the USB mod

1 in the Vivo xplay3s mobile phone application interface to find the "Settings" icon, click to enter after we find "system settings" and then go to find inside the "about the phone" (about the tablet) we now click on it to enter. 2 in the open about the mobile interface we find "version number" and then click 7 consecutive times, direct screen display after the prompts we then click the "Back" Settings menu interface to select "Developer Options" 3 OK now we go to the developer option and

There are a lot of readily available information about USB. I will summarize some of the basic information here. I. Advantages of USB (1) easy to use. Supports hot swapping. (2) wide application scope. The USB system has less additional information and high bandwidth utilization. Both synchronous transmission and asynchronous transmission are supported. (3)

Now we are using more and more USB devices, and there are no fewer problems, software hardware aspects of the problem, then we analyze the USB device and troubleshoot. 1. Front usb cable Connection error. This type of failure occurs when the USB cable on the motherboard corresponds to the front

For system integration engineers, it may be necessary to install systems such as Windows operating systems, VMware ESXi, etc. frequently.For me, I often install Windows operating systems, VMware ESXi. Because of the different needs of users, the installed system and version are also different. I used to take several U-disk, now still with several U disk (this is the superiority of Chinese language, this U disk is not a U disk). But now with the USB fl

following versions of JB3,If the value of Resource_overlay_support is generic ==>> modify the alps/mediatek/custom/[project]/resource_overlay/generic/ Frameworks/base/core/res/res/xml/storage_list.xmlIf the value of Resource_overlay_support is empty ==>> modify Alps/framework/base/core/res/res/xml/storage_list.xmlFor JB3 (inclusive) versions, the value of Resource_overlay_support can be configured as SD_IN_EX_OTG or SD_EX_OTG as needed, no need to modify the fileSD_IN_EX_OTG or SD_EX_OTG respec

; modify the alps/mediatek/custom/[project]/resource_overlay/generic/ Frameworks/base/core/res/res/xml/storage_list.xmlIf the value of Resource_overlay_support is empty ==>> modify Alps/framework/base/core/res/res/xml/storage_list.xmlFor JB3 (inclusive) versions, the value of Resource_overlay_support can be configured as SD_IN_EX_OTG or SD_EX_OTG as needed, no need to modify the fileSD_IN_EX_OTG or SD_EX_OTG respectively means inside card + external card +OTG or external card +OTGThe correspondi

following versions of JB3,If the value of Resource_overlay_support is generic ==>> modify the alps/mediatek/custom/[project]/resource_overlay/generic/ Frameworks/base/core/res/res/xml/storage_list.xmlIf the value of Resource_overlay_support is empty ==>> modify Alps/framework/base/core/res/res/xml/storage_list.xmlFor JB3 (inclusive) versions, the value of Resource_overlay_support can be configured as SD_IN_EX_OTG or SD_EX_OTG as needed, no need to modify the fileSD_IN_EX_OTG or SD_EX_OTG respec

USB deviceWhen we mention it, we will think of it as a USB drive or USB data cable.However, the current USB manufacturer has changed the USB design mode and has been converted into some more useful and creative devices. You never thought of a transformer as a

Linux USBDevice Driver Framework Analysis In fact, all the device drivers in Linux follow the same Convention-representing the structure of the driver program (which is more appropriate with the driver, it should be called a better driver, the struct should contain all the resources required by the driver. In terms of terms, it is the attributes and members of the drive object. Since the Linux kernel is written in C, We also analyze the code according to this structured idea, but I still want to

Take notes on the USB Kernel in Linux-general Linux technology-Linux programming and kernel information. For details, refer to the following section. In Linux, the software structure of the USB subsystem is (400) {this. resized = true; this. width = 400; this. alt = 'click here to open new window';} "onmouseover =" if (this. resized) this. style. cursor = 'hand'; "onclick =" window. open ('HTTP: // www.hy

USB Introduction: Several versions of USB: 1. USB 1.0: Speed 1.5mb/s 2. USB 1.1: Speed 12mb/s 3. USB 2.0: Speed 60mbb/s 4. USB 3.0: Speed 640mb/s Key Benefits of

What is the difference between USB1.1 and USB2.0 interfaces? How do I identify the USB Type on my computer? The full name of USB is universal serial bus. USB supports hot swapping and plug-and-play advantages, so USB interface has become the most important interface method of MP3.