PciExpressConfRegData2Str()

DWORD DLLCALLCONV PciExpressConfRegData2Str	(	_In_ WDC_DEVICE_HANDLE	hDev,
		_In_ DWORD	dwOffset,
		_Outptr_ PCHAR	pBuf,
		_In_ DWORD	dwInLen,
		_Outptr_ DWORD *	pdwOutLen
	)

Reads data from a PCI Express device's extended configuration space and parses the data to a string, if such a parsing is available.

The parsing is based upon information obtained from the official PCI Specification, 3rd Generation.

Parameters

[in]	hDev	Handle to a WDC PCI device structure, returned by WDC_PciDeviceOpen()
[in]	dwOffset	Offset of a register in the configuration space to be read and parsed to a string, if a parsing is available. Offset should be the sum of the value obtained from WDC_PciGetExpressOffset() WDC_PciGetExpressOffset() and the desired PCI Express offset.
[out]	pBuf	A pointer to a user preallocated buffer to be filled by the function. The buffer will not be filled if no parsing is available.
[in]	dwInLen	Size of the user preallocated buffer.
[out]	pdwOutLen	A pointer to a DWORD which will hold the actual length of the string the function wrote to the buffer. If the buffer is too small for the text written by the function then the text will be truncated. We recommend preallocating a 1024 byte buffer to avoid any truncation.

Returns

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