Western Digital T13/2132-D - Manual (Page 42)

T13/2132-D Revision 3 June 23, 2010
30 Working Draft Enhanced Disk Drive - 4 (EDD-4)
8.2 Reset Disk Subsystem (FN 00h)
This function shall be used to reset all the devices controlled by the INT 13h interface.
Entry
AH 00h
DL BIOS device number
Exit
Carry Clear Function completed without error
AH Shall be cleared to zero
Carry Set Function completed with an error
AH Shall be set to the error code