Date: Fri, 12 Nov 2004 14:36:49 +0000 From: Josef Karthauser <joe@FreeBSD.org> To: Ian Dowse <iedowse@maths.tcd.ie> Cc: freebsd-usb@FreeBSD.org Subject: Re: Legacy keyboard suppport stops USB from working! (uhci) Message-ID: <20041112143649.GH962@genius.tao.org.uk> In-Reply-To: <200411111020.aa20937@salmon.maths.tcd.ie> References: <20041110111231.GB908@genius.tao.org.uk> <200411111020.aa20937@salmon.maths.tcd.ie>
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--ewQ5hdP4CtoTt3oD Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 11, 2004 at 10:20:35AM +0000, Ian Dowse wrote: > In message <20041110111231.GB908@genius.tao.org.uk>, Josef Karthauser wri= tes: > > > >Do users know that having legacy keyboard/mouse support switched on > >in the bios is a sure fire way of causing USB to not work properly? > >I wonder whether we would benefit from something like the following > >patch. >=20 > It's worth noting that the reason legacy emulation causes problems > is often that FreeBSD has not undone the BIOS's configuration of > the EHCI controller. Adding 'device ehci' to the kernel config seems > to fix this in many cases. What hardware were you seeing the problem > on, and does it have an EHCI controller that's not being set up by > FreeBSD? >=20 > Many PCs these days have no PS/2 mouse or keyboard ports, so it's > important that we work with legacy emulation turned on where possible. >=20 Ben Paley will be able to say more as it's his hardware, but it was a UHCI chipset and thus no EHCI was present. Joe --=20 Josef Karthauser (joe@tao.org.uk) http://www.josef-k.net/ FreeBSD (cvs meister, admin and hacker) http://www.uk.FreeBSD.org/ Physics Particle Theory (student) http://www.pact.cpes.sussex.ac.uk/ =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D An eclectic mix of fact an= d theory. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --ewQ5hdP4CtoTt3oD Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iEYEARECAAYFAkGUyoAACgkQXVIcjOaxUBbk4gCgx/y/uuVfdLtnGA6uoZCIQi5O JFgAn3/kIk1JniwHqrNAH5IX8nfa0MSp =p/gS -----END PGP SIGNATURE----- --ewQ5hdP4CtoTt3oD--
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