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EFI_USBFN_IO_PROTOCOL.GetVendorIdProductId

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The GetVendorIdProductId function returns the vendor-id and product-id of the device.

Syntax

typedef
EFI_STATUS
(EFIAPI * EFI_USBFN_IO_GET_VENDOR_ID_PRODUCT_ID) (
  IN EFI_USBFN_IO_PROTOCOL      *This,
  OUT UINT16                    *Vid,
  OUT UINT16                    *Pid
  );

Parameters

This
A pointer to the EFI_USBFN_IO_PROTOCOL instance.

Vid
Returned vendor-id of the device. Vendor IDs (VIDs) are 16-bit numbers owned by the vendor company and are assigned and maintained by the USB-IF.

Pid
Returned product-id of the device. Product IDs (PIDs) are 16-bit numbers assigned by each vendor as they see fit.

Return values

The function returns the following values:

Return code Description
EFI_SUCCESS The function returned successfully
EFI_INVALID_PARAMETER A parameter is invalid
EFI_NOT_FOUND Unable to return VID or PID.

Remarks

Requirements

Header: User generated