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Date: Wed, 10 Jul 96 18:48:59 EST
From: "Nathan Melhorn" <n_melhor@Telebit.COM>
Message-Id: <9606108370.AA837050309@smtpgate.chelmsford.telebit.com>
To: questions@FreeBSD.org (general questions)
Subject: Installing parallel port IOMega ZIP drive?
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     I just got an IOMega parallel port ZIP drive (100 MEG, 
     dismountable) and installed it on my DOS/Windows and OS/2 systems. 
     It wasn't easy on OS/2, but it went OK. I then started to install 
     it on my FreeBSD system. Some information sources (any others?):
     
      http://www.torque.net/zip.html  {mostly Linux ->}
      http://www.prism.uvsq.fr/~son/ppa3.html {FreeBSD ->}
      http://www.prism.uvsq.fr/~son/ppa3.c {the source}
     
     This source is a port from Linux, and probably hasn't seen HEAVY 
     use. However, I was willing to take a try.  This source describes 
     how it should be incorporated. I modified the MY_MACHINE and 
     files.386 files and started a build. I got a compile error on 
     ppa3.c, and had to replace all int32 with int32_t and all u_int32 
     with u_int32_t. It built then.
     
     First, I found that the parallel port address they'd suggested 
     (0x278) was wrong for me, and I needed 0x378 -- which I got from 
     an old 'dmesg' output for LPR1.
     
     Now it works. It identifies my device, and I can read it (I 
     haven't tried writing yet, but I think it'll go).
     
     However, I find that it takes a LONG time to do the initial device 
     probes. Since the ppa interface is SCSI-ish, I thought the 
     SCSI_DELAY might change this. I reduced it from its original 15 
     seconds (it seemed MUCH longer) to 5. On reboot, probing now took 
     about 2 minutes! I changed it back to 15 seconds. 
     
     I'm stuck until I get a bright idea -- or some suggestions. I'll 
     also be asking the author.
     
     --thanks, Nate Melhorn (n_melhor@chelmsford.telebit.com)