From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marco Stornelli Subject: Re: UIO - interrupt performance Date: Tue, 21 Oct 2008 11:30:39 +0200 Message-ID: <48FDA13F.3030303@coritel.it> References: <5958B8D7916AB84781FE0E7B57C218CB75AB98@306900ANEX2.global.avaya.com> <48FC71BD.9070703@coritel.it> <48FCAE16.70509@billgatliff.com> <48FD94AA.8070900@coritel.it> <63a49ef40810210201x36249476tcc75141d87a610f2@mail.gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <63a49ef40810210201x36249476tcc75141d87a610f2@mail.gmail.com> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Alessio Igor Bogani Cc: Bill Gatliff , "Douglas, Jim (Jim)" , Embedded Linux mailing list I could agree, but "the facto" due to UIO license condition, a company often uses UIO drivers, regardless performance, debug, etc, only as not to public the code under GPL. Alessio Igor Bogani ha scritto: > Hi All, > > Sorry for my (very) bad english. > > 2008/10/21 Marco Stornelli : > [...] >> idea. UIO drivers, however, has been inserted mainly for one reason: the >> problem with GPL, so I prefer, but it's only my opinion, at least for >> now, to write a "classic" driver if there aren't GPL problems. > > No, that isn't the main objective of the UIO Authors. > > AFAIK They want achieve: > > 1) Fast prototyping for device drivers > 2) Easy and fast debug > 3) Avoid "fast and furious" changes of the internal kernel interfaces > for their drivers > > Ciao, > Alessio > -- Marco Stornelli Embedded Software Engineer CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni http://www.coritel.it marco.stornelli@coritel.it +39 06 72582838