Unless  otherwise stated, the  source code distributed  with this bookcan   be  redistributed in source    or  binary form   so  long  as anacknowledgment  appears in derived source   files. The citation shouldlist that the code comes from BOOK  by AUTHOR, published by O'Reilly &Associates.  This  code is under copyright and  cannot be  included inany other book, publication, or educational product without permissionfrom O'Reilly &  Associates. No warranty  is attached; we  cannot takeresponsibility for errors or fitness for use.There are a few exception to this licence, however: a few sourcesherein are distributed according to the GNU General Public License,version 2. You'll find a copy of the license in/usr/src/linux/COPYING, and in other places in your filesystem. Theaffected source files are:	pci/pci_skel.c	tty/tiny_serial.c	tty/tiny_tty.c	usb/usb-skeleton.cThe files in ./pci ./tty and ./usb inherit the GPL from the kernelsources, as most of their code comes straight from the kernel(usb-skeleton.c being part of the kernel source tree directly.)