linux wireless driver development tutorial

kernel core layer, is kernel great god Linus and other people to change, the driver is basically to understand the Linux kernel architecture, in the framework of kernel drive each sensor) Learning route: 1. Linux basic Operations (commands) are commonly used such as the operation of files, the operation of folders, the use of Vim/vi, folders/files,

After two weeks of exploration, I finally had a preliminary understanding of the development of Linux device drivers. Next I will make a summary of the establishment of the development environment for Linux device drivers to facilitate future queries, it also helps beginners of the same path. When users are new to

After two weeks of exploration, I finally had a preliminary understanding of the development of Linux device drivers. Next I will make a summary of the establishment of the development environment for Linux device drivers to facilitate future queries, it also helps beginners of the same path. When users are new to

data storage operations in the device driver, but to consider the data processing congestion, do not affect the Serversuperio device-driven overall scheduling.Once you have configured and tested your system using the designer IDE, you can choose to start the console as a runtime environment with the following effects: 1.[serial] "C # communication (Serial and network) framework design and implementation"2.[Open source]c# cross-platform IoT comm

learn the interfaces that these three types of devices provide to us. (17) static compilation (re-download compiled Linux kernel) and dynamic compilation. The development phase is dominated by dynamic compilation (without restarting the kernel). Dynamically loaded in the same way as the module. (18) The main device number distinguishes device drivers. The secondary device number distinguishes between multi

without having to go through the undo mapping, which provides the following call to the kernel:void dma_sync_single_for_cpu (struct device *dev, dma_handle_tbus_addr, size_t size, enum dma_data_directction direction );This function should be called before the processor accesses the streaming DMA buffer. Once the function is called, the processor "owns" the DMA buffer and can access it as needed. Then, before the device accesses the buffer, the following function should be called to return owner

This is the day we start the actual combat! Here by the way, ah, come out to do the basis of development is very important Ah, the foundation is not good, sooner or later is to be bad. Personal deep feeling like this embedded development of C language and microcomputer interface and principle is very dependent on, must have a deep foundation to hold the live, or really like some people say, learned a year e

directly, but to get a device number it! Personally feel that the first number more conditioning, more easily detect whether the device number is re-used, the second Linux system in a master device number can correspond to multiple devices of the same type, in view of this, the device must also need a device number, or that sentence we say this useless, Linux drive dev