Date: Tue, 7 Jun 2011 16:05:30 -0400 From: John Baldwin <jhb@freebsd.org> To: "Jung-uk Kim" <jkim@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r222795 - head/sys/dev/atkbdc Message-ID: <201106071605.30586.jhb@freebsd.org> In-Reply-To: <201106071508.31068.jkim@FreeBSD.org> References: <201106062303.p56N3cjs053024@svn.freebsd.org> <201106071402.11620.jhb@freebsd.org> <201106071508.31068.jkim@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tuesday, June 07, 2011 3:08:29 pm Jung-uk Kim wrote: > On Tuesday 07 June 2011 02:02 pm, John Baldwin wrote: > > On Tuesday, June 07, 2011 11:39:26 am Jung-uk Kim wrote: > > > On Tuesday 07 June 2011 09:52 am, John Baldwin wrote: > > > The whole point of this commit is to blacklist *recent* BIOS (or > > > CSM) from probing keyboard typematic information, more > > > specifically, recent Intel chipset platforms. They don't support > > > many INT 15h/16h functions but only cause trouble at best. OTOH, > > > I haven't seen such problems with AMD chipset systems and they > > > all seem to have traditional entry points at the interrupt vector > > > table, for example. > > > > Err, but you didn't blacklist recent BIOS. You blacklist _all_ > > BIOS that use entry points other than the ones from the UEFI spec, > > including BIOSes that don't claim to support UEFI and the BIOS from > > the two systems I quoted. > > Relax. The entry points were originally from IBM PC/AT and PS/2 > systems and UEFI CSM spec. was written to ensure backward > compatibility with the *real* BIOS. I am quite sure your BIOS > doesn't support keyboard typematic, i.e., it doesn't have sufficient > compatibility with the original IBM BIOS. If it does, I'll happily > revert the change. :-) Hmm, I had not expected such consistency among BIOS implementations given the number of vendors, etc. I would probably be fine with just removing this feature entirely though unless it is truly useful. -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201106071605.30586.jhb>