Other sources specifically about writing device drivers.
Randy Bentson recently wrote an interesting book called Inside Linux. It has some information on basic operating system theory, some that is specifically related to Linux, and occasional parts that aren't really related to Linux at all (such as a discussion of the Georgia Tech shell). ISBN 0-916151-89-1, published by Specialized System Consultants
Inline Assembly with DJGPP really applies to any version of GCC on a 386, and some of it is generic GCC inline assembly. Definitely required reading for anyone who wants to do inline assembly with Linux and GCC.
The Annotated Bibliography mentions plenty of books out that don't have ``Linux'' in the title which may be useful to Linux programmers. Especially if you are new to kernel programming, you may do well to pick up one of the textbooks recommended in the bibliography.
Copyright (C) 1996 Michael K. Johnson,
johnsonm@redhat.com.
 Linux Pgrogrammers Guide (LPG)  by Federico Lucifredi
Linux Pgrogrammers Guide (LPG)  by Federico Lucifredi  TTY documentation  by Michael De La Rue
TTY documentation  by Michael De La Rue 
 In the queue...  by Michael K. Johnson
In the queue...  by Michael K. Johnson 
 TTY documentation  by Eugene Kanter
TTY documentation  by Eugene Kanter  Untitled  by Yusuf Motiwala
Untitled  by Yusuf Motiwala  The vger linux mail list archives   by Drew Puch
The vger linux mail list archives   by Drew Puch   German book on Linux Kernel Programming  by Jochen Hein
German book on Linux Kernel Programming  by Jochen Hein 
 English version of Linux Kernel Internals  by Naoshad Eduljee
English version of Linux Kernel Internals  by Naoshad Eduljee  Book Review?  by Josh Du"Bois
Book Review?  by Josh Du"Bois  Thumbed through it  by Brian J. Murrell
Thumbed through it  by Brian J. Murrell  Multi-architecture support  by Michael K. Johnson
Multi-architecture support  by Michael K. Johnson  Analysis of the Ext2fs structure  by Michael K. Johnson
Analysis of the Ext2fs structure  by Michael K. Johnson  To add more sources of information:  by Michael K. Johnson
To add more sources of information:  by Michael K. Johnson