linux kernel driver tutorial

In the previous blog post, we have learned how to coordinate how each level in the whole system works, and the command issued by the application layer reaches the drive layer under the kernel, thus achieving the purpose of operating the hardware layer.Let's look at the code in the final molded "shell driver" first_drv.c in the last blog post:#include As I said in my previous blog post, there is a disadvanta

-S/usr/src/Linux-version/usr/src/Linux Then restart and use uname-R to check the kernel version. Naturally, remember to reinstall the graphics card driver.Cleanup If your kernel can work stably and properly after a period of testing, you can clean up and release disk space.Clear old files Return to the

Original address: Linux kernel source Code Analysis--Kernel boot (5) Image kernel boot (rest_init function) (Linux-3.0 ARMv7) TekkamanninjaTransferred from: http://blog.chinaunix.net/uid-25909619-id-4938395.htmlThe previous rough analysis of the Start_kernel function, which

How to compile the driver statically into the kernel. Development boards used: TQ210 's s5pv210 Development Board Kernel version: linux-3.8.3 Compiler: ARM-LINUX-GCC 4.4.3 Relevant download Address: First, ready to properly compile the source code to guide the Development

SCI:The SCI layer provides a standard set of system call functions for user space to access the linux kernel and build a bridge between user space and kernel space. Process scheduling Management pm:the focus of process management is to create processes (Fork, exec), stop processes (Kill, Exit), and control communication between them (signal or POSIX mechanism ).

References: Http://www.ylmf.net/zhuanti/zt02/2010/1108/8747.html Http://www.linuxdiyf.com/viewarticle.php? Id = 107960 Http://wenku.baidu.com/view/9b156d1f650e52ea55189852.html Http://wenku.baidu.com/view/0f36597f27284b73f2425024.html? From = related hasrec = 1 1. kconfig and makefile To put it bluntly, kconfig and makefile are the two most dependent files when we browse kernel code. Basically, there will be a kconfig file and a MAKEFILE file under e

After uboot completes the system boot and copies the Linux kernel to the memory, bootm-> do_bootm_linux () jumps to the start position of the kernel;The compressed kernel entry is in arch/ARM/boot/compressed/head. s, which decompress the call function decompress_kernel () and print "Uncompressing

interface. This nmake.exe program is critical to the east and west. What is the application? Used to run makefile files! With regard to the nmake.exe applet, you can find it on your own, which must be included in the installation directory of visual stuio. The file attribute of this tool is described as Microsoft program maintenance utility (Microsoft engineering management tool ). Makefile is a project management file, which is widely used on Linux/

Write driver-Ubuntu7.10 compile the kernel 2.6.24 -- general Linux technology-Linux programming and kernel information. For details, refer to the following section. After Ubuntu 7.10 is installed, the version displayed by executing uname-r is the

.2cto.com Two problems are found from this error. the same file autoconf. h command is missing in two places to find this file: Sudo find/-mount-name autoconf. h The returned result is as follows: /Usr/src/linux-headers-2.6.35-22-generic-pae/include/generated/autoconf. h /Usr/src/linux-headers-2.6.35-22-generic/include/generated/autoconf. h Then uname-r is used to check which

This section describes the Linux Device Driver framework, driver configuration files, and common methods for loading drivers. It also describes how Red Hat Linux installer loads drivers, we can put the driver into the boot disk by ourselves; after installing the system, we c

Upgrade Ubuntu 10.04 with 2.6.32 kernel to 3.0 kernel graphic tutorial, 10.042.6.32 1. Complete the following practical work and screenshot the practice steps: 1) download and install the Virtual Machine VMWare Workstation; 2) install Linux2.x on the virtual machine; 3) Compile the Linux 2. upgrade x

From: http://gmier.com/books/understanding-android-system/chapter2-kernel We say that android is based on Linux, and the most fundamental reason is that android uses the Linux kernel. 2.1 Android kernel features The android kernel