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    <tr><td class="paramname">InstancePtr</td><td>is the PCIe component to operate on. </td></tr>
    <tr><td class="paramname">Bus</td><td>is the external PCIe function's Bus number. </td></tr>
    <tr><td class="paramname">Device</td><td>is the external PCIe function's Device number. </td></tr>
    <tr><td class="paramname">Function</td><td>is the external PCIe function's Function number. </td></tr>
    <tr><td class="paramname">Offset</td><td>from beggininng of PCIe function's configuration space. </t