User`s manual

IOT - I/O Configure Disk Controller
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IOT - I/O Configure Disk Controller
Command Input
IOT [;[A|F|H|T]]
Options
Description
The IOT command allows you to set-up (ÒteachÓ) a new disk
configuration in the PPCBug for use by the system call disk
functions. IOT lets you modify the controller and device descriptor
tables used by the system call functions for disk access. Note that
because the PPCBug commands that access the disk use the system
call disk functions, changes in the descriptor tables affect all those
commands. These include the IOP and PBOOT commands, and
also any user program that uses the system call disk functions.
Refer to Table E-2 for information on formatting floppy disk drives.
Before attempting to access the disks with the IOP command, you
should verify the parameters and, if necessary, modify them for the
specific media and drives used in the system. (Refer to Appendix E
for details.)
A List all the disk controllers which are supported by PPCBug. SCSI
controllers are identiÞed with an asterisk (*). Each PCI controller
is only listed once.
F Force a device descriptor into the Device Descriptor Table. This
option makes it easier to debug a particular device, in the event
the device probe for the speciÞed device fails.
H List all the disk controllers which are available to the system.
SCSI controllers are identiÞed by an asterisk (*).
T Probe the system for I/O controllers. This option basically
invokes the IOI command with no options.