WD_MultiTransfer

#define WD_MultiTransfer	(		h,
			pTransferArray,
			dwNumTransfers
	)

Value:

    WD_FUNCTION(IOCTL_WD_MULTI_TRANSFER, h, pTransferArray, \
        sizeof(WD_TRANSFER) * (dwNumTransfers), FALSE)

Executes multiple read/write instructions to I/O ports and/or memory addresses.

Parameters

[in]	h	Handle to WinDriver's kernel-mode driver as received from WD_Open().
[in]	pTransferArray	Pointer to a beginning of an array of transfer information structures
[in,out]	dwNumTransfers	The number of transfers to perform (the pTransferArray array should contain at least dwNumTransfers elements)

Returns

Returns WD_STATUS_SUCCESS (0) on success, or an appropriate error code otherwise

WD_TRANSFER Trans[4];
DWORD dwResult;
char *cData = "Message to send\n";
 
BZERO(Trans);
 
Trans[0].cmdTrans = WP_WORD; /* Write Port WORD */
Trans[0].pPort = 0x1e0;
Trans[0].Data.Word = 0x1023;
 
Trans[1].cmdTrans = WP_WORD;
Trans[1].pPort = 0x1e0;
Trans[1].Data.Word = 0x1022;
Trans[2].cmdTrans = WP_SBYTE; /* Write Port String BYTE */
Trans[2].pPort = 0x1f0;
Trans[2].dwBytes = strlen(cdata);
Trans[2].fAutoinc = FALSE;
Trans[2].dwOptions = 0;
Trans[2].Data.pBuffer = cData;
 
Trans[3].cmdTrans = RP_DWORD; /* Read Port Dword */
Trans[3].pPort = 0x1e4;
 
WD_MultiTransfer(hWD, &Trans, 4);
dwResult = Trans[3].Data.Dword;

Definition at line 1926 of file windrvr.h.