FS_GetDiskParms

FS_GetDiskParms(
 PIOREQ pir
 )
 

This function handles int 21h function 32h ( Get DPB address ). The FSD must return the real mode address of the DOS DPB for the drive and must update the real mode DPB if necessary. An FSD can fail this call if it does not maintain DPBs.

ir_rh

Supplies volume handle for the disk resource.

ir_user

Supplies user id for this request.

ir_pid

Supplies process id for this request.

ir_error	Returns status of the operation ( 0 if no error, errorcode otherwise ).
ir_aux1	Returns DPB real-mode address. High word contains the segment and the low word contains the offset of the DPB.