dtr device

/' uname-r '/build/m= ' pwd ' in this directory the command executed successfully the day before yesterday is installed the source code package, specifically can refer to other materials, Ubuntu just apt-get install several packages, The Redhat series requires only a few yuminstall. Of course, there is a development environment, that is, GCC and the like.Once the compilation is complete, the Mengcdev.ko module can be generated.Insert this module with root insmod Mengcdev.koThen go to the/proc/

Python to monitor the port usage of the device, python to monitor the port usage of the device This example describes how to monitor the port usage of a device using Python. Share it with you for your reference. The details are as follows: Recently, due to work requirements, the above requirements need to be reported daily O M of hundreds of port usage [], altho

Prior to Linux3.1, board-level information is generally stored in the/arch/arm/mach-** directory for devices on a typical arm platform.The files for the device tree are stored in the/arch/arm/boot/dts/***.dts directoryThe purpose of the device tree introduction:Avoid the duplication of individual vendor code, accelerating the development of the Linux kernel BSP. Compiling a mirror can support multiple diffe

After a block device is mounted, you can view the file system information for the device via the DF or Mount command. However, sometimes it is necessary to judge without mounting the device, and the following method can be used:(1) View file system type command: File-sl/dev/testvg/lv0 Sample output:/dev/testvg/lv0:linux Rev 1.0 ext2 FileSystem data (large files)

Tags: Linux device directory mount device Unable to view problem resolutionDevice mount take the optical drive as an example, first in the virtual machine VMware in the optical drive to add a mirror to confirm that the optical drive is working[Email protected] ~]# Cd/dev/cdrom-BASH:CD:/dev/cdrom: Not Directory[Email protected] ~]# Ls/dev/cdrom/dev/cdrom[[email protected] ~]# mount/dev/cdrom/mnt (Attach cdro

1, under the system simultaneously hold down the keyboard "Windows logo" key and "X" key, in the System tool shortcut entrance opens "Device Manager";(the following diagram) 2. Before the device class you want to disable, click to expand the view of the device you want to disable. Right-click on the device name

Open QQ Device Lock 1 The mobile phone QQ upgrade to the QQ4.6.2 version, and then the mobile phone login QQ, and then click on the panel "settings" 2 in the Setup Panel we will see that there is a "device lock" Labor 3 then click on it to go to the following image interface, and then we click on "Open Device lock" 4 then QQ will give us a mobile phone

Water Spraying Device (i.)Time limit: Ms | Memory limit: 65535 KB Difficulty: 3 describes the existing lawn, 20 meters in width, 2 meters wide, to place a spray device with a radius of Ri on the horizontal centerline, the effect of each water spray device will let the circle with its center radius for the real Ri (0The first line of each set of test data has an i

First read the code and comments: /*** Bdget_disk-Do bdget () by gendisk and Partition Number* @ Disk: gendisk of interest* @ Partno: Partition Number** Find partition @ partno from @ disk, do bdget () on it.** Context:* Don't care.** Returns:* Resulting block_device on success, null on failure.*/ Struct block_device * bdget_disk (struct gendisk * disk, int partno){Struct hd_struct * part;Struct block_device * bdev = NULL; Part = disk_get_part (disk, partno );If (Part)Bdev = bdget (part_devt (pa

[Code Note] Get the device model, note the device model I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSLog (@ "-- self-machine-% @", [self machineName]) ;}# pragma-mark-functions // obtain the device model-(NSString *) machineName {struct utsname systemInfo; uname ( systemInfo); NSString * result = [NSStrin

After experimenting on the virtual machine, cloning the virtual machine, and modifying the IP address, the following error occurred when restarting the network service:[Email protected] desktop]# service network restartshutting down loopback interface: [OK]bringi ng up Loopback interface: [OK]bringing up interface eth0:Error:No suitable device found: No device found for connection ' System eth0 '. [FAILED]

The computer often gets stuck and recovers after a minute or two. It also has the symptoms of power-off. There are two types of system logs: 1. Event ID: 51Event Type: WarningEvent Source: DiskDescription: an error was detected on device \ harddisk3 \ dr3 during a paging operation. (An error is detected on the device \ harddisk1 \ D during the call .) 2. Event ID: 9Event Type: ErrorEvent Source: nvgtsD

Environment Description:In virtual machine VMS, centos6.6 's operating systemFault Description:Vi/etc/sysconfig/network-scripts/ifcfg-eth0An error occurred after modifying the IP address of the virtual machine and when restarting the NIC using service network restart: error:no suitable device found:no device found for connection "Sys TEM eth0 "Workaround:Based on this error, looked up on the internet, found

ios-Get Model (device model), version (device version number), app (program version number), etc.NSLog (@ "uniqueidentifier:%@", [[Uidevice Currentdevice] uniqueidentifier]);NSLog (@ "Name:%@", [[Uidevice Currentdevice] name]);NSLog (@ "SystemName:%@", [[Uidevice Currentdevice] systemName]);NSLog (@ "systemversion:%@", [[Uidevice Currentdevice] systemversion]);NSLog (@ "model:%@", [[Uidevice Currentdevice]

IOS-Get Model (device Model), Version (device Version), app (program Version), etc.IOS-Get Model (device Model), Version (device Version), app (program Version), etc. NSLog (@ uniqueIdentifier: % @, [[UIDevice currentDevice] uniqueIdentifier]);NSLog (@ name: % @, [[UIDevice currentDevice] name]);NSLog (@ systemName: %

Question one: Why the device tree is needed. In the current widely used Linux kernel 2.6.x version, for different platforms, different hardware, there is often a large number of different, poor portability of the board level Description code to achieve these different platforms and different hardware special adaptation Demand. But too many platforms and different hardware have led to more and more such code, such as Arch/arm/plat-xxx and arch/arm/mach

USB Device cannot stop universal volume device What do I do? Method One: Release clear off the clipboard Caused "Unable to stop the universal volume device", generally there are reasons, such as the above mentioned reason is the most common, the solution can be released to clear off the Clipboard, you can casually copy anything on the hard drive to rele

Multimedia Network live video device selection, multimedia network live video deviceTianchuang hengda UB530 HD video acquisition card USB game PS4 video replaying movie network live video recording and Broadcasting Conference HDMI collection box Http://item.jd.com/1567495458.htmlTianchuang hengda UB5A0 USB acquisition card HDMI component Network Conference ps4 game video HD acquisition box 1080 p Http://item.jd.com/1542475884.html Or you can do i

require(dirname(__FILE__)."/lib/Mobile_Detect.php");$detect = new Mobile_Detect;$deviceType = ($detect->isMobile() ? ($detect->isTablet() ? 'tablet' : 'phone') : 'computer');if($_SERVER["SERVER_NAME"] == "nj.xxx.cn" ){ if($deviceType == "phone") { header("Location:http://m.xxx.cn/"); exit(); }} Have judged移动设备 What to do with the phone endpoint 使用电脑版 Reply content: require(dirname(__FILE__)."/lib/Mobile_Detect.php");$detect = new Mobile_Detect;$deviceType = ($dete

1. First login to the Apple ID on the computer to open "ITunes" and then log in AppleID as shown in the following figure. 2. In itunes we click on the "Login" icon in the itunes Store, as shown in the following figure. 3. Then in the pop-up login interface we click on the Apple ID account and password input correctly click Login. 4. Login success we will see our own Apple ID account, we click on our AppleID and then click on "Account" details as shown in the picture. 5. In entering i