Embedded Linux kernel and driver development
Date: 06 May 2011, 17:56
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Training materials in slides from http://free-electrons.com. You can free download it from http://free-electrons.com/training/drivers Overview The GNU / Linux operating system is more and more used in electronic devices embedding a significant part of software (digital assistants, telephones, dedicated terminals, etc.). Its strengths are many: freedom of modifying and redistributing sources, OS vendor independence, zero cost, no royalties, available tools, available documentation and support on the Internet by the community of its users. Duration 3 days. 1/2 of theory and 1/2 of practical labs. Language English Audience People developing devices using the Linux kernel. Driver developers for internal or external peripherals. Benefits Getting experience and knowledge useful to implement Linux based devices and write device drivers. Course objectives Learn how to (cross)compile and start a Linux kernel. Learn how to write complex device drivers and debug them on the target platform. Learn how to get help, report issues and even contribute to improving the code. This course mainly targets device driver developers and doesn't address inner kernel details. Prerequisites Knowledge and practise of Unix or Linux commands. Practise of the C language. Needed equipment Video projector, 1 PC computer on each desk (1 or 2 people). No operating system requirement. Materials Print and electronic copy of presentations and labs. Electronic copy of lab files. Contents Introduction System overview and role of the kernel History and versioning scheme Supported hardware architectures Legal issues: licensing constraints, software patents Kernel user interface Compiling and booting Getting the sources Using the patch command Structure of source files Kernel modules Kernel configuration Files used by kernel configuration tools Compiling Cross-compiling The bootloader Booting parameters Debugging through the serial port Creation of an initrd ramdisk Basic driver development Linux device drivers A simple module Programming constraints Loading, unloading modules Module parameters Module dependencies Adding sources to the kernel tree Kernel debugging Driver development Memory management I/O register and memory access Character device drivers Sleeping, interrupts mmap, DMA New device model, sysfs Hotplug udev dynamic devices Advice and resources Using Ethernet over USB Root filesystem on the host through NFS Review of the various filesystem types. The MTD subsystem. Advice for making a choice Getting help and contributions Bug report and patch submission to Linux developers. References PassWord: www.freebookspot.com
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