DevHlp_CreateSpinLock

Create a subsystem spinlock.

This function creates a subsystem spinlock.

Syntax

DevHlp_CreateSpinLock(HSpinLock FAR * pSpl)

Parameters

pSpl (HSpinLock) - input

Pointer to spinlock handle.

Return Code

Exit

Example Code

Assembly language

    ;       dh_CreateSpinLock - Create a spinlock ;
    ;       This routine creats a subsystem spinlock.
    ;
    ;       ENTRY:  AX:BX = pointer to store spinlock handle
    ;
    ;       EXIT:   None
    ;
    ;       USES:   EAX, Flags
    ;

      MOV     AX,AddressHigh               ; high word of address
      MOV     BX,AddressLow                ; low word of address
      MOV     DL,DevHlp_CreateSpinLock     ; 79h
      CALL    DevHlp
      JC      Error