Greg Kroah-Hartman (Linux kernel developer)
Is a Linux kernel developer. He is the current Linux kernel maintainer for the -stable branch, the staging subsystem, USB, driver core, debugfs, kref, kobject, and the sysfs kernel subsystems, Userspace I/O (with Hans J. Koch), and TTY layer. He also created linux-hotplug, the udev project, and the Linux Driver Project. He worked for Novell in the SUSE Labs division and, as of 1 February 2012, works at the Linux Foundation. He is a co-author of Linux Device Drivers (3rd Edition) and author of Linux Kernel in a Nutshell, and used to be a contributing editor for Linux Journal. He also contributes articles to LWN.net, the computing news site. Kroah-Hartman frequently helps in the documentation of the kernel and driver development through talks and tutorials. In 2006, he released a CD image of material to introduce a programmer to working on Linux device driver development.