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Date: Wed, 12 Jan 2005 22:49:31 GMT
From: Maksim Yevmenkin <emax@FreeBSD.org>
Message-Id: <200501122249.j0CMnVt4023627@freefall.freebsd.org>
To: sthommerel@osiatis.com, emax@FreeBSD.org, freebsd-usb@FreeBSD.org
Subject: Re: kern/71887: [kbd] Losing keyboard after plugging a bluetooth
	usb dongle
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Synopsis: [kbd] Losing keyboard after plugging a bluetooth usb dongle

State-Changed-From-To: open->closed
State-Changed-By: emax
State-Changed-When: Wed Jan 12 22:40:29 GMT 2005
State-Changed-Why: 
This is NOT USB problem NOR its Bluetooth problem. Few USB Bluetooth
dongles have this feature to allow use of Bluetooth keyboard and mouse 
on non-Bluetooth enabled systems. Hardware MUST pretend that there is
USB keyboard, because actual Bluetooth keyboard (or mouse) could be
powered off or it could be out of range. It just easier to pretend that
keyboard is connected but it just does not send any data.

This is just like KVM switch - it pretends that PS/2 keyboard and mouse
are plugged in, even if actual keyboard/mouse input is redirected to
another port on KVM switch. This is just another example why we need
keyboard mux driver.

http://www.freebsd.org/cgi/query-pr.cgi?pr=71887