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PEP_ACPI_INITIALIZE_SPB_SPI_RESOURCE function (pepfx.h)

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The PEP_ACPI_INITIALIZE_SPB_SPI_RESOURCE function initializes a platform extension plug-in's (PEP) PEP_ACPI_SPB_SPI_RESOURCE structure.

Syntax

void PEP_ACPI_INITIALIZE_SPB_SPI_RESOURCE(
  [in]  USHORT             DeviceSelection,
  [in]  UCHAR              DeviceSelectionPolarity,
  [in]  UCHAR              WireMode,
  [in]  UCHAR              DataBitLength,
  [in]  BOOLEAN            SlaveMode,
  [in]  ULONG              ConnectionSpeed,
  [in]  UCHAR              ClockPolarity,
  [in]  UCHAR              ClockPhase,
  [in]  PUNICODE_STRING    ResourceSource,
  [in]  UCHAR              ResourceSourceIndex,
  [in]  BOOLEAN            ResourceUsage,
  [in]  BOOLEAN            SharedMode,
  [in]  PCHAR              VendorData,
  [in]  USHORT             VendorDataLength,
  [out] PPEP_ACPI_RESOURCE Resource
);

Parameters

[in] DeviceSelection

The device selection value. This value is specific to the device and may refer to a chip-select line, GPIO line, or other line selection mechanism.

[in] DeviceSelectionPolarity

The polarity of the clock. If zero, this indicates the clock is low during the first phase. If 1, this indicates the clock is high during the first phase.

[in] WireMode

When zero, indicates that this device produces and consumes this resource. Otherwise, this device only consumes this resource.

[in] DataBitLength

The size, in bits, of the smallest unit of transfer.

[in] SlaveMode

Indicates if the resource is operating in slave mode.

[in] ConnectionSpeed

The maximum speed, in hertz, supported by this connection.

[in] ClockPolarity

The polarity of the clock. If zero, this indicates the clock is low during the first phase. If 1, this indicates the clock is high during the first phase.

[in] ClockPhase

The phase of the clock pulse on which to capture data.

[in] ResourceSource

The name of the serial bus controller device to which this connection descriptor applies. The name can be a fully qualified path, a relative path, or a simple name segment that utilizes the namespace search rules.

[in] ResourceSourceIndex

This parameter should always be set to zero.

[in] ResourceUsage

Indicates if the resource is in use.

[in] SharedMode

Indicates if the resource is shared.

[in] VendorData

A pointer to optional data that is specific to the serial bus connection type.

[in] VendorDataLength

The length of the buffer pointed to by the VendorData parameter.

[out] Resource

A pointer to the resource. The structure behind the pointer is of type PEP_ACPI_SPB_SPI_RESOURCE.

Return value

None

Requirements

Requirement Value
Minimum supported client Supported starting with Windows 10.
Target Platform Windows
Header pepfx.h (include Pep_x.h)

See also

PEP_ACPI_SPB_SPI_RESOURCE