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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!metro!munnari.OZ.AU!news.ecn.uoknor.edu!paladin.american.edu!zombie.ncsc.mil!news.mathworks.com!newsfeed.internetmci.com!news.sprintlink.net!news.sysnet.net!usenet From: patton@sysnet.net (Matthew Patton) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Support for HW compression DATs?? Date: 10 Jan 1996 15:28:38 GMT Organization: Defense Information Systems Agency Lines: 24 Message-ID: <4d0lv6$kce@unix2.sysnet.net> Reply-To: patton@sysnet.net (Matthew Patton) NNTP-Posting-Host: ppp4.sysnet.net X-Newsreader: IBM NewsReader/2 v1.2 I have an Archive 2gig DAT that does hardware compression. According to my kernal it's a 'generic' 3.81mm device. Needless to say, it doesn't enable the hardware compression mode. 1) How do I build specific device support into the kernel? (assuming it's necessary, and where to find the parameters needed in 'scsi_tape.h') 2) How to make the necessary /dev devices. (No, they AREN'T in MAKEDEV.) 3) What the major and minor numbers mean. (a good reference somewhere?) 4) What are the defined SCSI2 density codes? At a different installation which used DEC Ultrix, we had /dev/rmt08's with a trailing 'h' or 'l' to indicate the density. In my case, the devices are /dev/st0,1. Anyone know what a /dev/st20 is? Surely they don't mean the 20'th tape device! Thanks for the assistance. ========================================================================== Microsoft and it's minions (employees, MSN, Ziff Davis Publishing Co.) are prohibited from redistributing this work in any form, in whole or in part. Copyright, Matthew E. Patton, 1995.