What are the issues in putting a 3 button mouse on a MacII?

[John Sovereign]

In article <26543 at apple.Apple.COM> jrg at Apple.COM (John R. Galloway) writes:
>
>What are the issues in connecting a 3 button mouse to a MacII?  the possible
>confgurations in order of desireability seem to be:
>	add serial mouse to existing or additional serial port, add a
>		A/UX driver for it and use this mouse only under X, and
>		the standard ADB mouse for Mac OS.
>	same as above, but modify/replace the existing mouse driver to
>		allow Mac/OS to view all the buttons as "one" and for
>		X to distinguish them, thus having only one mouse for both. 
>	same as above but build a serial->ADB converter.  Can this be
>		powered off the ADB?  i.e. as long as it doesn't need
>		another cord it would not be a hassle.
>Are there issues that make this practicaly impossible?  Is it doable by a
>third party?  What gives? Of course what I would REALLY like is to be able to

Ja, these ideas have been tossed around here by three-button addicts.
Number one is definitely doable by a third-party; the existing serial i/o
driver has hooks for other protocols.  You should join APDA and buy a copy
of the A/UX Device Driver Kit ($80).  The Kit includes driver sources and
describes the autoconfiguration evironment on A/UX.

>apple!jrg	John R. Galloway, Jr.       contract programmer, San Jose, Ca

John Sovereign
UniSoft Corporation
uunet!unisoft!john