Resources I've compiled while dealing with the Linux Kernel

 "Once you realize that documentation should be laughed at, peed upon, put
on fire, and just ridiculed in general, THEN, and only then, have you reached
the level where you can safely read it and try to use it to actually implement
a driver."

	- Linus Torvalds

First off - the best location for information about how the kernel does things is the /Documentation/ folder right in the source tree. Best source yet.

• How NOT To write a device driver
• Interfaces between Kernel and User space
• How linux keeps track of time
• The High Resolution Timer API
• Linux Device Drivers (free ebook) Vol 3
• Linux Kernel Module Programming Guide (LKMPG)
• Loadable Linux Kernel Module Guide
• Kernel Objects (struct kobject)
  • The Zen of Kernel Objects
  • Kobjects and Sysfs
  • New kobject/kset/ktype documentation and example code