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From: ts@cup.portal.com (Tim W Smith)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Telling Floppies from Hard Disks
Message-ID: <21583@cup.portal.com>
Date: 25 Aug 89 02:53:19 GMT
References: <1742@cs-spool.calgary.UUCP> <3841@internal.Apple.COM>
Organization: The Portal System (TM)
Lines: 17

Not quite.  The check for removable drives recently posted here will
fail for many hard drives.  The following code was used:

	if ( *p == 8 )
		/* assume non-removable */
	else
		/* removable */

This fails because the value 0x48 can be used to signify non-removable
drives.  A value of 8 means that the drive is non-removable.  A value
of 0x48 means that the drive is non-removable, but the driver wants to
receive a control call when someone tries to eject the drive.

I have no idea why anyone would want to use 0x48.  Does anyone have
any ideas?

						Tim Smith