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. |