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From: allanh@netcom.UUCP (Allen Hessenflow)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Hardware write protect in SCSI disk driver
Summary: reporting write protect
Keywords: write protect, lock, SCSI, driver, disk
Message-ID: <4964@netcom.UUCP>
Date: 8 Dec 89 04:00:18 GMT
References: <1989Dec7.202804.6903@csispt.UUCP>
Organization: NetCom- The Bay Area's Public Access Unix System {408 997-9175 guest}
Lines: 13

In article <1989Dec7.202804.6903@csispt.UUCP>, bob@csispt.UUCP (Bob Finch) writes:
> 
> How should a SCSI disk driver that supports removable media tell the
> Mac OS that the drive is hardware write protected?
> 
All you should need to do is exactly what you said you've done.  When I
first tried to implement write protection on a removable media device 
it didn't work because I only set the bit in the dqe but didn't respond
to status calls at all.  As soon as I implemented status calls everything
worked.

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