Topic       : TOS - The Operating System
Author      : 
Version     : tos.hyp (December 19, 2008)
Subject     : Programmieren/Atari
Nodes       : 3010
Index Size  : 93790
HCP-Version : 5
Compiled on : Atari
@charset    : atarist
@lang       : 
@default    : Title
@help       : 
@options    : +g -i -s +x +zz -t4
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View Ref-File11.5.16.34.5  d_driver                                             TOS

Together with d_devcode, this determines the medium. That means that 
if d_driver and d_devcode are identical, both drives lie on the same 
medium, and if the medium is to be ejected then both filesystems have 
to be locked. With a hard disk partition, d_biosdev is the BIOS drive, 
d_driver is arbitrary (e.g. pointer to the XHDI structure), d_devcode 
is the XHDI code of a medium, i.e. SCSI target and device number (one 
WORD in each case).