## Physical Device Driver Reference

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### OEMHLP_PCI (0Bh) - Write PCI Configuration Space - Subfunction 04h

Category:
IOCTL_OEMHLP (80h)
Function:
OEMHLP_PCI (0Bh)
Description:
Write PCI Configuration Space - Subfunction 04h

Select an item:

    Description
    Parameter Packet Format
    Data Packet Format
    Remarks

Allows writing of a PCI Configuration register on a specified device.