install device driver

Block device driver registration and logoffThe 1th work in block device drivers is usually to register themselves to the kernel, and the function to complete this task is Register_blkdev (), whose prototype is:int Register_blkdev (unsigned int major, const char *name);The major parameter is the main device number to be

("Platform:s3c64xx-spi"); static int __init s3c64xx_spi_init (void) {return platform_driver_probe (s3c64xx_spi_driver, S3c64xx_ spi_probe); } Subsys_initcall (S3c64xx_spi_init);Obviously, the system initialization phase (Subsys_initcall phase), through the S3c64xx_spi_init (), registered a platform driver, the driver's name is also: S3c64xx-spi, naturally, the platform bus will be it and the previous section defined platform _device match, a

about how to write a misc device, in the previous article has introduced the approximate process, now let us implement a simplest Misc device driver. http://blog.csdn.net/morixinguan/article/details/52700146The following four articles about the preceding character device can be used as a reference:http://blog.csdn.net/

1. All we learned before was the character device driver, just remember.Character Device driver:When our application layer reads and writes (read ()/write ()) character device drivers, the data is read and written by Byte/character, there is no buffer, because the data volume is small, can not randomly read data, such

Http://hi.baidu.com/linux_kernel/blog/item/5c8510dfbfdb9b1363279884.html In order to see the actual running effect, we select the 8139too Nic as an example. Program Cropping Code .The driver of a PCI device must describe itself to the PCI core in the kernel. At the same time, it must also tell the PCI core which devices can be driven by itself. The following describes two important data structures.Struct p

My philosophy: Simple and practical can be, do not engage in a pile of source code out, the results show people do not know how to use, Look at me: 1, in arch/arm/mach-xxx/own platform file to add I2C information, beauty its name Yue: i2c_board_info For example: static struct I2c_board_info __initdata xxxi2c_board_info[] = {{I2c_board_info ("Abcd1", 0x20),/* string to match the back, 0x20 from the device address * *. Platform_data = 0,},{I2c_board_in

1, first review before writing the driver and data together led driver code, the code is as follows:#include Now the code of LED2 and Led3 is removed, leaving only led1, and we want to know how we use the Platform platform bus method to achieve the LED driver, we have probe function, and the Remove function, corresponding to the

Select Computer to press the right mouse button "Properties". Open the System window click "Advanced system Settings" → "Hardware" → "Device installation settings. The Default Device Setup settings option is to install (i) from Windows Update when the driver software is not found on my compute

1. Device and driver registration, regardless of who first who after, can be matched by the query bus When the device is hooked up to the bus, it matches all the drivers on the bus (matched with bus_type.match), and if the match succeeds, it calls Bus_ Type.probe or Driver.probe initializes the device and hook

3 design and implementation of micro-drive The micro-drive in the class/micro drive model directly controls the external device. As long as the micro-drive creates the specified function, the application can be easily invoked via the DIO adapter module, the PIO adapter module, or the (and) Gio class driver. These specified functions include channel-bound functions (MD-BINDDEV), channel creation/deletion fun

follows:void Example_do_tasklet (unsigned long) { ...} Declare_tasklet (Example_tasklet, Example_do_tasklet, 0); irqreturn_t example_interrupt (int irq, void *dev_id, struct PT _regs *regs) { ... Tasklet_schedule (example_tasklet); ......}Task Force Column: A work queue invokes a function at a future time, in the context of a particular worker process. Because the work queue function runs in the context of the process, you can hibernate if necessary. Work Queue General Program wri

QIn NT/2000/XP, I want to write applications using VCProgramAccess hardware devices, such as obtaining disk parameters, reading and writing absolute sector data, and testing the actual speed of the optical drive. Where should I start? AIn NT/2000/XP, applications can use the API function deviceiocontrol to access devices, obtain information, send commands, and exchange data. Use this interface function to send the correct control code and data to the specified

4. WDM Environmenta installation VC6.0;b Install the DDK of the appropriate operating system (components must be selected all);c Installation DriverStudio;D Open compuware\driver studio\driverworks\source\vdwlibs.dsw project with VC6.0;1) Use DriverStudio's Driverwizard to create the projectCreate Regsample after the compilation error, delete the missing function, and then remove the ntstrsafe.lib link lib

Brief introduction The network interface is the third class of standard Linux devices, and this chapter describes how the network interface interacts with the rest of the kernel. The network interface must register itself with a specific kernel data structure in case it is called when the packet is exchanged with the outside world. There is no point in the use of common file operations on network interfaces, so it is not possible to embody Unix's "Everything is a file" ide

In the Linux Device Driver Model excerpt (2), we track the registration process of the driver in amba_pl011.c to demonstrate how a device is unified into the Linux unified device model, amba_pl011 is a generic device. The followin

Create a new thin device//call path in the thin pool: driver. Create () 1.1 func (Devices *deviceset) AddDevice (hash, basehash string) error {//find parent Devicebaseinfo, err: = DEVICES.LOOKUPD Evice (Basehash) if err! = Nil {return Err}baseinfo.lock.lock () defer baseInfo.lock.Unlock () devices. Lock () Defer devices. Unlock ()//check Imageid/containerid if the corresponding image exists if info, _: = De

After nearly two months, I finally moved to the nearest point. I have a detailed understanding of the scull driver in chapter 3 of Linux Device Drivers (3rd edition), and I will analyze the scull driver, for later viewing. 1. Create a character driver: 1. Get the device Num

It may be difficult to put the driver model in the first chapter, but as long as the driver model can be crossed, it will be much easier later. The driver model is the cornerstone of the entire Linux Device Driver. Most people call the d