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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.mel.connect.com.au!munnari.OZ.AU!spool.mu.edu!howland.reston.ans.net!newsfeed.internetmci.com!EU.net!Austria.EU.net!news.aut.alcatel.at!atusc74!ladavac From: ladavac@aut.alcatel.at (Marino Ladavac) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: ioperm call on FreeBSD? Date: 5 Jan 1996 12:51:23 GMT Organization: Alcatel Austria AG Lines: 19 Message-ID: <4cj6sb$gip@atusks02.aut.alcatel.at> References: <DKEMoG.C19@midway.uchicago.edu> <4c49he$f8v@uriah.heep.sax.de> <4c4hcm$ur@prds-grn.demon.co.uk> <4c8ifo$30e@uriah.heep.sax.de> NNTP-Posting-Host: atusc74.aut.alcatel.at X-Newsreader: TIN [version 1.2 PL2] J Wunsch (j@uriah.heep.sax.de) wrote: : t.d.g.sandford@prds-grn.demon.co.uk (Thomas D.G. Sandford) writes: : > Is there any documentation on how to use /dev/io ? - I can't find a man : > page anywhere. What would be yet better (and it is partially in the kernel, ifndeffed with not yet, is /dev/iomem which gives a low grain access to the iomap, but is a special file rather than a system call. iomem access control being granted through a special file makes it possible for the program to execute setgid iomem, rather than setuid root, even though the point is moot since the iomem hole is big enough to allow the program programmed io to the disc... Still, cosmetically speaking :) I'm not volunteering :) Intel arcana is too deep for the aging remaining braincells in my head. /Alby