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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.mira.net.au!vic.news.telstra.net!act.news.telstra.net!psgrain!usenet.eel.ufl.edu!news.mathworks.com!uunet!in3.uu.net!van-bc!news.mindlink.net!nntp.portal.ca!cynic.portal.ca!not-for-mail From: cjs@cynic.portal.ca (Curt Sampson) Newsgroups: comp.unix.admin,comp.protocols.ppp,comp.unix.questions,comp.unix.bsd.freebsd.misc,comp.unix.bsd.netbsd.misc Subject: Re: Best Unix for SLIP/PPP Server- Best Reliability/Cost? Date: 19 Nov 1996 22:42:07 -0800 Organization: Internet Portal Services, Inc. Lines: 22 Message-ID: <56u97v$q3p@cynic.portal.ca> References: <56cfhc$h8b@access5.digex.net> <56lbop$egq@nntp1.best.com> <56m28s$jpb@cynic.portal.ca> <56r4eg$3sr@uriah.heep.sax.de> NNTP-Posting-Host: cynic.portal.ca Xref: euryale.cc.adfa.oz.au comp.unix.admin:50648 comp.protocols.ppp:15966 comp.unix.questions:91604 comp.unix.bsd.freebsd.misc:31291 comp.unix.bsd.netbsd.misc:4900 In article <56r4eg$3sr@uriah.heep.sax.de>, J Wunsch <joerg_wunsch@uriah.heep.sax.de> wrote: >cjs@cynic.portal.ca (Curt Sampson) wrote: > >> And how does the data get out of the FIFOs? You've got it: polling. >> No interrupts are generated. > >Nope. ``Tx buffer empty'' interrupts are probably as old as serial >communication chips are. Actually, I was referring to `out of the FIFOs and in to memory.' But the same goes for transmitting: there's just no point in generating an interrupt based on the status of a serial port when you know you're going to be checking the status every few milliseconds anyway. cjs -- Curt Sampson cjs@portal.ca Info at http://www.portal.ca/ Internet Portal Services, Inc. Vancouver, BC (604) 257-9400 De gustibus, aut bene aut nihil.