From mboxrd@z Thu Jan 1 00:00:00 1970 From: david@lang.hm Subject: Re: [git pull] Input updates for 2.6.34-rc6 Date: Fri, 14 May 2010 12:05:26 -0700 (PDT) Message-ID: References: <20100513075728.GF30110@core.coreip.homeip.net> <20100514145539.GA5598@srcf.ucam.org> <20100514184931.GA10113@srcf.ucam.org> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Return-path: Received: from mail.lang.hm ([64.81.33.126]:33351 "EHLO bifrost.lang.hm" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755455Ab0ENTFg (ORCPT ); Fri, 14 May 2010 15:05:36 -0400 In-Reply-To: Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Matthew Garrett Cc: Linus Torvalds , Dmitry Torokhov , Andrew Morton , Linux Kernel Mailing List , linux-input@vger.kernel.org, Bastien Nocera On Fri, 14 May 2010, david@lang.hm wrote: > On Fri, 14 May 2010, Matthew Garrett wrote: > >> On Fri, May 14, 2010 at 11:47:43AM -0700, david@lang.hm wrote: >> >>> yes, everything has USB ports, so they could use USB keyboards, but it's >>> actually pretty common to still use PS/2 keyboards (and while the systems >>> all support USB, it's not uncommon to have KVM systems, including pretty >>> expensive 'enterprise' KVM systems that still require PS/2 keyboards be >>> used to plug into the KVM, so those are the keyboards that are in the >>> datacenter that someone will grab to plug into a problem machine) >> >> The server hardware I've looked at will all declare the ports regardless >> of whether or not there's something plugged in. > > remember that many people use systems in datacenters that are not 'server > hardware'. > > when a desktop PC can have 4-6 cores with 8G+ of ram and a couple TB of > storage, a lot of people will end up using those systems for production. > > As they grow into bigger companies they will shift to 'server class' > hardware, but startups tend to use whatever they can scrounge (or buy > _really_ cheap) By the way, for what it's worth I think it's a very bad idea to hot-plug PS/2 keyboards. The hardware may be better nowadays, but back when I was a PC repair tech I made very good money replacing the fuses on motherboards that would blow because someone hot-plugged the keyboard. That said, there are times when it happens, and many people don't see any problem with it. David Lang