You can find the kernel source it in any kernel, however it may be outdated. To get a newer version, as well as the utility package you have several options.
http://www.isdn4linux.de/download.php3
.
CVS - Concurrent Version System
This is a multiuser/server extension to RCS (Revision Control System). The I4L drivers are developed under CVS, and there exists on server (cvs.isdn4linux.de) a CVS tree to which all developers have access. In addition, Fritz has configured an anonymous read-only access. If you must have the very newest versions, you can get them there, however they may contain more bugs than the released versions!!!
Here is how to get the latest version:
mkdir ~/cvs; cd ~/cvs cvs -d :pserver:guest@cvs.isdn4linux.de:/i4ldev login
cvs -d :pserver:guest@cvs.isdn4linux.de:/i4ldev checkout isdn
cvs -d :pserver:guest@cvs.isdn4linux.de:/i4ldev checkout isdn4k-utils
cvs -d :pserver:guest@cvs.isdn4linux.de:/i4ldev checkout -r isdn4kernel_2_0 isdn
isdn
or isdn4k-utils
subdirectory and
running
cvs update -P -d
WATCH OUT!!! THE NEWEST STUFF SOMETIMES IS REALLY INSTABLE OR EVEN DOES NOT COMPILE WITHOUT PROGRAMMING KNOWLEDGE - No newbies questions on this PLEASE! Use the source, Luke!
People who want to help continuously developing isdn4linux by writing
new driver etc. can get a real account for full access. In this case write
an email to Fritz Elfert
fritz@isdn4linux.de