From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,6394e5e171f847d1 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-09-05 13:07:29 PST Path: archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!out.nntp.be!propagator-SanJose!news-in!easynews!border1.nntp.aus1.giganews.com!nntp.giganews.com!news-east.rr.com!news-west.rr.com!lsnws01.we.mediaone.net!typhoon.san.rr.com!not-for-mail Message-ID: <3B9685EE.23ECDD48@san.rr.com> From: Darren New Organization: Boxes! X-Mailer: Mozilla 4.77 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: Ada OS Kernel features References: <9n4euv$t9m$1@slb6.atl.mindspring.net> <3B964C7A.BC04374E@icn.siemens.de> <9n5o9n$37a$1@slb7.atl.mindspring.net> <3%ul7.3362$9z1.440040@news6-win.server.ntlworld.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 05 Sep 2001 20:07:12 GMT NNTP-Posting-Host: 24.165.20.19 X-Complaints-To: abuse@rr.com X-Trace: typhoon.san.rr.com 999720432 24.165.20.19 (Wed, 05 Sep 2001 13:07:12 PDT) NNTP-Posting-Date: Wed, 05 Sep 2001 13:07:12 PDT Xref: archiver1.google.com comp.lang.ada:12769 Date: 2001-09-05T20:07:12+00:00 List-Id: > I really don't get why a driver must have access to system structures or > atleast those in kernel space, can you explain this? Generally because interrupt handling, munging of memory maps, and I/O instructions are all privledged operations on most machines. How do you let the user-space video driver change video modes without letting someone else do so? -- Darren New San Diego, CA, USA (PST). Cryptokeys on demand.