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1989
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0004-DRVR installation-Nov89
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Item forwarded by CPLUS.ADMIN to CP.ARCHIVES
Item forwarded by CHAOS to MACDTS
Item 8611247 22-Nov-89 03:49
From: UK0310 Paul G Smith
To: CPLUS.DEV$ C++ Interest List--Developers
CPLUS.APPLE$ C++ Interest List--Apple Employees
Sub: DRVR installation
(This isn't really a C++-specific question, but since I'm writing *all* this
stuff in C++ I hope no-one objects too much!)
I've got working INIT and DRVR shells now, written entirely in C++ and easily
extensible by the creation of derived classes. It's just *wonderful*.
Is there an accepted (ie safe) way of grabbing a Unit Table entry for a driver
that is {i} being installed by an INIT and {ii} not to be found in the System
File or a slot ROM. I don't want my DRVR to have to be a DA in the System File.
I don't want to choose an un-used entry only to get trashed later by some other
device. Is there an accepted range of Unit Table entries I can scan? I know
that the SCSI install process scans *drives* but it's the unit table I'm
interested in. IM-V and TN-108 don't really help.
(End of question.)
Regards, Paul