Service_SCSIAttached (changes)
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Programmer's Reference Manuals
» Service Calls
» Service_SCSIAttached
Service_SCSIAttached
(Service &20102)
| Entry | |
|---|---|
| R0 | Device ID |
| R1 | Reason Code 131330 (&20102) |
| R2 | Device ID mask |
| Exit | |
|---|---|
| All registers preserved | |
Use
Issued when a new device or bus is registered with SCSIdriver. A hardware driver may issue this itself to indicate that a device has been attached to an ID already registered with SCSIdriver.
The mask indicates whether a bus, a device or a unit (potentially multiple) has been attached; someone wanting to rescan the bus should scan all devices with IDs such that <device ID> AND R2 = R0.
Example:
| Bus 0, device 1 attached: | R0 = &01 (0:1.0), R2 = &1F (3:7.0) |
| Bus 3, device 4, unit 5 attached: | R0 = &BC (3:4.5), R2 = &FF (3:7.7) |
| Bus 2 attached: | R0 = &10 (2:0.0), R2 = &18 (2:0.0) |
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