Plug and Play BIOS Specification

Plug and Play BIOS Specification 1.0A Page 55
Appendix C: Return Codes _______________________
The following table represents the return codes for the BIOS functions.
Bit 7 set indicates an error has occurred.
Success Codes 00h:
Return Code Value Description
SUCCESS 00h Function completed successfully
Warning Codes 01h through 7Fh:
Return Code Value Description
Reserved 01h
NOT_SET_STATICALLY 7Fh Warning that indicates a device could not be
configured statically, but was successfully configured
dynamically. This return code is used only when
function 02h is requested to set a device both
statically and dynamically.
Error Codes 81h through FFh:
Return Code Value Description
UNKNOWN_FUNCTION 81h Unknown, or invalid, function number passed
FUNCTION_NOT_SUPPORTED 82h The function is not supported on this system.
INVALID_HANDLE 83h Device node number/handle passed is invalid or out
of range.
BAD_PARAMETER 84h Function detected invalid resource descriptors or
resource descriptors were specified out of order.
SET_FAILED 85h Set Device Node function failed.
EVENTS_NOT_PENDING 86h There are no events pending.
SYSTEM_NOT_DOCKED 87h The system is currently not docked.
NO_ISA_PNP_CARDS 88h Indicates that no ISA Plug and Play cards are
installed in the system.
UNABLE_TO_DETERMINE_DOCK_
CAPABILITIES
89h Indicates that the system was not able to determine
the capabilities of the docking station.
CONFIG_CHANGE_FAILED_NO_
BATTERY
8Ah The system failed the undocking sequence because it
detected that the system unit did not have a battery.
CONFIG_CHANGE_FAILED_
RESOURCE_CONFLICT
8Bh The system failed to successfully dock because it
detected a resource conflict with one of the primary
boot devices; such as Input, Output, or the IPL
device.
BUFFER_TOO_SMALL 8Ch The memory buffer passed in by the caller was not
large enough to hold the data to be returned by the
system BIOS.
USE_ESCD_SUPPORT 8Dh This return code is used by functions 09h and 0Ah to
instruct the caller that reporting resources explicitly
assigned to devices in the system to the system BIOS
must be handled through the interfaces defined by the
ESCD Specification.
MESSAGE_NOT_SUPPORTED 8Eh This return code indicates the message passed to the
system BIOS through function 04h, Send Message, is
not supported on the system.