2.14. WD_DMAUnlock()


	Chapter 2. WD_xxx PCI/PCMCIA/ISA Functions

Purpose

Unlocks a DMA buffer.

Prototype

DWORD WD_DMAUnlock(
    HANDLE hWD,
    WD_DMA *pDMA);

Parameters

Description

Name	Description
hWD	Handle to WinDriver's kernel-mode driver as received from `WD_Open`() [5.2]
pDMA	Pointer to a DMA information structure:
• hDma	DMA buffer handle, received from `WD_DMALock`() [2.13].

Return Value

Returns WD_STATUS_SUCCESS (0) on success, or an appropriate error code otherwise [A].

Example

WD_DMAUnlock(hWD, &dma);


2.13. WD_DMALock()		2.15. WD_DMASyncCpu()