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  1. #1

    How to switch from user mode to kernel mode in linux

    I'm learning about linux kernel but i don't understand how to switch from user mode to kernel mode in linux. how it work? could you give me some advice or give me some link to refer to it or some book about this? thank so much!

  2. #2
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    Install a kernel module. You can't just directly access kernel mode from user space.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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