INT 15H 5304H: Interface Disconnect
Expects: AX 5304H
BX 0000H (power device ID = System BIOS)
Returns: AH APM error code (if CF=CY)
Info: This breaks a connection between an application and system BIOS
made by a previous call to INT 15H 5301H, INT 15H 5302H, or
INT 15H 5303H.
This says, "I no longer wish to help manage power."
Notes: This restore the BIOS defaults for power management. However,
timers and device enable/disable settings (such as made via
INT 15H 5307H) will remain in effect.
See Also: APM API