Category 80h Adapter Presence-Check Services (TESTCFG.SYS)
The TESTCFG device driver provides services for
automatic detection of Original Equipment Manufacturer (OEM) hardware interfaces.
Functions provided by this driver are accessed entirely by opening the
device name TESTCFG$ and using the following Category 80h IOCtls.
┌──────────┬──────────────────────────────────────────────────┐
│Function │Description │
├──────────┼──────────────────────────────────────────────────┤
│40H │Get Copy of BIOS/Adapter Memory │
├──────────┼──────────────────────────────────────────────────┤
│41H │Issue an "IN" I/O Instruction │
├──────────┼──────────────────────────────────────────────────┤
│42H │Issue an "OUT" I/O Instruction │
├──────────┼──────────────────────────────────────────────────┤
│60H │Get Bus Architecture Function │
├──────────┼──────────────────────────────────────────────────┤
│61H │Return All POS IDs │
├──────────┼──────────────────────────────────────────────────┤
│62H │Return All EISA IDs │
└──────────┴──────────────────────────────────────────────────┘
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