, Guangzhou Zhou ligong, and Qingdao Hisense, 706 Beijing Aerospace department and other well-known enterprises.
Learning embedded linux underlying driver development
are too many installation and frequently-used command books. If you want to find this book in a little more details, you need to learn regular expressions.Advanced unix environment programming is recommended for system programming.And unix network programming.At this time, you may also need to read the materials to understand the elf File Format, connectors and loaders. It is better to name a cmu textbook in Chinese as "Understanding the computer sys
Driver, and debugging a Driver for information about iterative Building, testing, and Deb Ugging. This process would help ensure and that's build a driver that works.
Create A driver package for your Storport miniport driver. Create a
This digest from my my book fixing "embedded Linux driver template explaining and project practice"Initially it seems that Linux device driver development involves a lot of content, and the devices that need to be driven vary wide
This digest from my my book fixing "embedded Linux driver template explaining and project practice"Initially it seems that Linux device driver development involves a lot of content, and the need to achieve a wide range of drivers,
Linux driver development kernel module compilation-Makefile getting started tutorial, driver development makefile
I. Module Compilation
In the previous kernel compilation, we mentioned that driver compilation is dividedStatic Com
Linux driver development-I/O memory access process, driver development-I
A device usually provides a set of registers to control the device, read/write devices, and obtain the device status, including the control registers, data registers, and status registers, which may be
The first 5 steps above are the next three steps in how to write a Linux driver to make Linux drivers work correctly. 6.3 First Linux Driver: Count the number of words1. first establish The directory where the Linux
The relationship between device and driver in linux driver development-Linux general technology-Linux programming and kernel information. The following is a detailed description. Yesterday I saw a piece of news titled "Housewives
of device tree, please check out a blog from teacher Song Baohua:
HTTP://BLOG.CSDN.NET/AIRK000/ARTICLE/DETAILS/2 1 Drive development based on device tree mechanism kernel-case study
In this chapter, the author talks about the driver development case of the kernel using the device tree mechanism based on linux-3.2.x. T
than one, and the virtual address space of multiple application tiers can be mapped to the same physical address at the same time. Mmap is a very important function.(4) When the application layer uses MMAP, then the virtual address space in the current application layer will be mapped with the actual memory physical address, that is, a part of the virtual address space FB, I operate the FB virtual address space is actually operating the memory of the physical address space is actually operating
in Cuikulaxiu.Linux is the place to be, invincible. This is not unrelated to the Linux community-based development model, which is fast iterative. Linux updates its version every 2-3 months, absorbing new architectures, chip support, drivers, kernel optimizations, and new features, so that Linux is always able to meet
, kernel optimizations, and new features, so that Linux is always able to meet the needs of users in the first time and quickly adapt to changing markets. A huge Linux ecosystem is made up of Linux and the many businesses and enthusiasts that are doing product development around Li
buzzer in the kernel in/driver/char/buzzer/x210-buzzer.c. This driver has no job, or is compiled into the kernel, it depends on the directory in the makefile fileobj-$ (config_buzzer_driver) + = X210-BUZZER.OCONFIG_BUZZER_DRIVER macro is defined, whether this macro is defined depends on the Kconfig file in this directoryConfig X210_buzzer_driverbool "x210 buzzer driver
platform_driver, the struct body in the header file "vimInclude/linux/platform_device.h"in? Driver Registration platform_driver_register, drive unload functionPlatform_driver_unregister is also in this header file– The parameters of both functions are only structure-body platform_driverDriver Registration--registered structureDriver Registration--registered structure? Drive common several states, initializ
basis of Mini_linux_moduleDriver Registration--header file• Drive registration using the struct platform_driver, the struct in the header file "vimInclude/linux/platform_device.h"in• Driver Registration platform_driver_register, drive unload functionPlatform_driver_unregister is also in this header file– The parameters of both functions are only structure-body platform_driverDriver Registration--registered
set to 0 low because it is initialized to 0 low, so the buzzer will not start ringing. printk ("x210" Device_name "initialized\n"); //device_name macros are device names, whichPrinting information, the compilation will print the string represented by the macro. returnret;The above analysis has finished analyzing what happened when the buzzer driver module was loaded (Dev_init). The successful execution of the Dev_init function indicates that the
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