I. Introduction to the Linux kernel module
The overall structure of the Linux kernel is very large, and it contains many components. How can we include all the required parts in the kernel?
One way is to compile all required functions into the kernel. This will cause two problems. One is that the generated kernel will be very large, and the other is that if we want to add or delete features in the existing kernel, We have to re-compile the kernel, work efficiency will be very low, and if the com
General Research on LINUX driver and RTC driver-Linux general technology-Linux programming and kernel information. The following is a detailed description. 1. The directory in linux is clearer. ARCH is related to the CPU of the Board or hardware system and is also the focus of transplantation. drivers is the file directory of the driver, FS, NET is a directory wi
MySQL loads the JDBC driver and mysql loads the jdbc driver.
First, install the MySQL database. MySQL5.5 is installed. The installation steps are not described here. Please note that if the installation process stops at the start service and cannot continue, please refer to my blog post "when installing MySQL5.5, the start service does not respond, solution", it should help you solve the problem.
Next,
I have been reading the code. Today I am going to try it. I will take the tiny6410 LED lamp to open the knife. Although I write it myself, it is actually referring to the routine. However, the basic idea is quite clear.
Define this drive as MISC device (Miscellaneous Device Driver), including the header file miscdevice. h. In fact, the so-called miscellaneous driver is the device
After the driver is uninstalled, mysql in ODBC is still in progress and cannot be deleted. after you click delete or configure, two windows will pop out! IMG (img.ask.csdn.netupload201507241437719369_282117.png )! IMG (img.ask.csdn.netupload201507241437719382_794672.png )! [Image description] (img. ask. csdn. netupload201507241437719392_42... mysql database driver odbc
After the
Recently, I have been drum up the lnux character device driver. I have collected various code and comments about the linux device driver on the internet, either for 2.4 or errors, and I cannot run it successfully, I really hope that you can carefully check the correctness of the code when posting a blog. In particular, you must list the code runtime environment and dependency conditions. Otherwise, it will
Method One:
1, in order to WIN8/8.1/10 we just in the computer keyboard Windows logo key +x key, and then click on the Open menu "program and Function", the following figure:
2, then we find the interface to click the Uninstall wireless network card driver, and then right-click the "Uninstall", follow the on-screen prompts to complete the uninstall.
Different wireless network names will not be the same, we search for their own wi
Uvc:usb Video ClassUVC Drive: drivers\media\video\uvc\UVC_DRIVER.C Analysis:1. Usb_register (uvc_driver.driver);2. Uvc_probeUvc_register_videoVdev = Video_device_alloc ();Vdev->fops = uvc_fops;Video_register_deviceDownload the UVC specification in www.usb.org,UVC 1.5 Class specification.pdf: Detailed descriptionUsb_video_example 1.5.pdf: There are examplesControlled by Videocontrol interface,Videostreaming interface to read video data,VC contains a number of unit/terminal and other functional mo
The development program requires a login function. You don't want to use a big database. Connect to access directly with Java. Everything is OK on your machine, and there is no problem with URL direct connection and configuration data source. Published to Windows server2008, the data connection is not available. The system is 64-bit. Office is 2010 32-bit. The problem has been looking for half a day. Finally resolved:32 for access driver needs t
This problem occurs when you use ASP to connect to the MySQL database.One afternoon, it was an ODBC data source problem.Record it:Cause of error: The 64-bit system uses 32-bit ODBC.Workaround: Use 64-bit ODBC for no problem.32-bit ODBC in the location: C:\Windows\System32\odbcad32.exe64-bit ODBC in the location: C:\Windows\SysWOW64\odbcad32.exe(The directory may differ for different systems)A problem also occurs during the connection process:[MySQL] [ODBC 5.3 (a)
Various printer installation Tutorials:
To install a local printer
1, recognize the printer model, find the printer's drive CD-ROM or download the printer driver from the official website. HP2288, for example, downloads printer drivers from HP's official website, or drives life with a universal drive downloader to download printer drivers
2, double-click the driver to install, after installation after th
Obtain the database connection through Driver and the driver database connection
Take a look at the file. There is a properties configuration file under the current package, and there is a lib folder under the root directory, which contains the mySql driver jar package
Driver: an interface. The database vendor must pr
1, we first find the "computer" on the desktop and then right-click it pop-up menu Device Manager-Display adapter Click "Update Driver Software";
2, then our computer will automatically scan all updatable or problematic drivers, such as will display "automatic search updated driver software";
Okay, if you have a problem, it will be automatically updated, if you update t
In the previous blog post, we have compiled the First_drv.ko file by makefile, which is a driver module that can be installed in Ubuntu.Execution in/work/my_drivers/first_drv/1th/directory: Insmod First_drv.koIf you are executing this command in a normal user state, you can see that the system reminds us: insmod:error inserting ' First_drv.ko ':-1 operation not permittedThis is because installing the driver
The source code is as follows:
#include
The test code is as follows:
/************************************************************************* *fileName: test.c *description: test the myscull.c *author: Hzc *create time: 2007-04-20 *modify info: -*************************************************************************/#include
The driver loading script is as follows:
#!/bin/shinsmod scull.komknod /dev/sculldev c 252 0
The
Android DRIVER: android driver
1 SensorManager mSensorManager = (SensorManager) getSystemService (SENSOR_SERVICE );
Step 2: Use the getdefasensensor method of SensorManager to obtain the sensor Object of the specified type;
1 Sensor sensor = mSensorManager. getdefasensensor (Sensor. TYPE_GRAVITY); // gravity sensing
Step 3: implement the onSensorChanged and onAccuracyChanged methods of the SensorEventListen
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