An interesting but completely irrelevant and ficticious argument.
The debate is over the higher level code. The ISDN folks _dont_
release the Linux people their ISDN protocol code, they just said
"Its a blah blah siemens chip mapped like this" and let the Linux
folks do their own hard work. And there the GPL helps us nicely
we only have to write the driver once - each vendor had to write
their own driver for the same job probably including silly
features solely to outdo the other sides marketing. They all make
the same errors, they all have to find and fix the same bugs
And people wonder why the world seems short of programmers.
Alan