SysPciReadValue (FUN)

FUNCTION SysPciReadValue : RTS_IEC_RESULT

<description>Read one PCI config value This function allows to read single configuration values of a PCI card by returning a pointer on the associated memory address (pbyData). Thereby the associated bus entry is identified via the bus, device and function number. The component to be read out is indicated by the PciOffset. </description> <result><p>RESULT: Returns the runtime system error code (see CmpErrors.library).</p></result>

InOut:

Scope	Name	Type	Comment
Return	SysPciReadValue	RTS_IEC_RESULT
Input	usBus	WORD	<param name=”usBus” type=”IN”>PCI bus number (index)</param>
	usDevice	WORD	<param name=”usDevice” type=”IN”>PCI device number (index)</param>
	usFunction	WORD	<param name=”usFunction” type=”IN”>PCI function number (index)</param>
	usPciOffset	WORD	<param name=”usPciOffset” type=”IN”>Offset in the PCI config</param>
	pbyData	POINTER TO BYTE	<param name=”pbyData” type=”OUT”>Pointer to data to read to PCI</param>
	usSize	WORD	<param name=”usSize” type=”IN”>Size in byte of data to read</param>