unix? user?
学习是最好的投资！
means userspace. There is such a paper: udev – A Userspace Implementation of devfs, see: http://www.kroah.com/linux/talks/ols_2003_udev_paper/Reprint-Kroah-Hartman-OLS2003 .pdf
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means userspace. There is such a paper: udev – A Userspace Implementation of devfs, see:
http://www.kroah.com/linux/talks/ols_2003_udev_paper/Reprint-Kroah-Hartman-OLS2003 .pdf