Subject: pms and pmsi - merge?
To: None <firstname.lastname@example.org>
From: Peter Seebach <email@example.com>
Date: 02/26/2002 15:05:24
So, my KVM switch breaks the pmsi driver in an interesting way. If I switch
away and back, the KVM starts using the standard 3-byte protocol again.
Windows is apparently aware of the switch, enough to resend the "change
I was thinking about this, and it seems that it would be useful for the driver
to know about protocol changes.
I was also thinking about my 5-button mouse.
It seems to me that a single PS/2 mouse driver that could re-negotiate
protocols under some circumstances might be a very useful thing to have.
With KVM switches, it's comprehensible to imagine a system *changing* from a
3-button mouse to a 5-button mouse with scrollwheel, while up and running.
Currently, we have no way to support this; if the pmsi driver doesn't probe
a mouse, it never gets used, and if we *do* configure pmsi, we can never
use a mouse that uses the 3-byte protocol.
The major thing missing is any idea of what happens to tell Windows that
it's time to re-enable the advanced protocol. Apart from that, everything
should be easy enough to do.
So... Would there be interest in a revised psm.c that supports multiple
protocols, and can change protocols dynamically under some circumstances?