• views: 79
• date: 14 January 2026
• posted by: voska89

What you'll learn
Write character device driver from scratch
Understand the various file operations provided by character driver
Requirements
Should be able to write/compile/load/unload Hello World Linux Kernel Modules
Description
Updated on Oct 10: Added s sectionWhat will you learn from this course?Introduction to character driversWhat is device number and device fileAllocating device number - statically and dynamicallyCreating device file - Manually(mknod) and automatically (udev)Registering character device and its file operation with KernelCopying data from user space to kernel space and vice versaUnderstanding the various structures - struct file and struct inodeImplementation of open, release, read, write, llseek, ioctl file operationshow to create multiple device nodes and add support for private dataFlow of write system call from kernel system call entry point to driver write file operationsHandling all the error cases in ioctl implementationSending a signal to user space from kernel spaceVarious access control mechanisms and capabilitiesMisc DriverAPI's covered in this course:MAJORMINORMKDEVregister_chrdev_regionalloc_chrdev_regionclass_createdevice_createclass_destroydevice_destroyunregister_chrdev_regionimajoriminorcopy_from_usercopy_to_userput_userget_userprint_dev_tformat_dev_tstrnlen_usercontainer_ofaccess_okCommands used in this course:mknodudevadm monitor
Who this course is for
Developers interested in learning Linux Kernel Programming
Homepage

https://www.udemy.com/course/character-device-drivers-in-deep/

   
   
   

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