linux wireless driver development tutorial

how to implement the interrupt mechanism in Linux. This is a common technology used in writing drivers.9. Learn about memory management and understand the implementation details of various memory alloc functions. This is one of the basic functions of Linux development.10. Application of the learning lock mechanism, such as semaphores and spin locks. The lock is

;misc_class-> Devnode = Misc_devnode;return 0;FAIL_PRINTK:PRINTK ("Unable to get major%d for misc devices\n", misc_major); Class_destroy (Misc_class); Fail_remove:remove_proc_entry ("Misc", NULL); return err;}and a Misc_regiter function interface for driver developers. The main thing is to create misc devicesIntmisc_register (Structmiscdevice*misc) {structmiscdevice*c;dev_tdev; Interr=0;init_list_head (misc->list); Mutex_lock (AMP;MISC_MTX); List_for_

space can directly access the physical address of the device, mmap () to implement the user space of a piece of memory and device Memory Association, When the user accesses the user space, the address actually translates to access to the device. If the user space can be directly accessed through memory mapping, the pixel of the screen frame will no longer need a copy process from user space to kernel space, mmap () must be mapped in page_size unitsThe prototype of the mmap () function in the dr

Linux Driver Development III (the memory of hardware knowledge that must be understood) This article focuses on the basic knowledge of memory, the network on the Ram,rom,flash, etc. have a very detailed introduction, Lao Xie will these knowledge points summarized and annotated as follows. This process of finishing is also a process of deepening memory.1. What

Statement: these articles are original articles. If you want to reprint them, you need to obtain your own permission. Otherwise, you will be held accountable. I hope you can understand them! (Small fish in the deep ocean) Development Platform: PC (XP), virtual machine vwmare6.5, Linux operating system fedora9 Knowledge required: 1. Priority of printk Printing Output # Define kern_emerg "# Define kern_alert

Android Deep Exploration (Vol. 1) HAL and Driver development experienceThe tenth chapter of embedded Linux call technologyFor complex Linux drivers and libraries such as HAL, you need to debug them in a variety of ways. For example, set breakpoints, step through code, output debugging information, and so on. While embe

during the development phase, which is removed when the Linux driver is officially released. The output of the PRINTK function can be controlled by compiling instructions in the C language.3. Data interaction through a virtual file system (/PROC)In Linux file systems,/proc is often used as a tool for data interaction

This blog is updated in real-time on the Linux device Driver Development detailed (3rd edition).In 2014.6.30, the preliminary completion of the 4-9 chapters, relative to the 2nd edition, the main changes in these chapters.[F] is a revision or upgrade; [N] is a new point of knowledge; [D] is a deleted content4th chapter "Linux