WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_URB function (wdfusb.h)

Artikel
02/22/2024

[Applies to KMDF and UMDF]

The WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_URB function initializes a WDF_USB_INTERFACE_SELECT_SETTING_PARAMS structure so that a driver can select a USB interface by specifying a URB.

Syntax

void WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_URB(
  [out] PWDF_USB_INTERFACE_SELECT_SETTING_PARAMS Params,
  [in]  PURB                                     Urb
);

Parameters

[out] Params

A pointer to a driver-allocated WDF_USB_INTERFACE_SELECT_SETTING_PARAMS structure.

[in] Urb

A pointer to a URB structure.

Return value

None

Remarks

The WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_URB function zeros the WDF_USB_INTERFACE_SELECT_SETTING_PARAMS structure and sets its Size member to the size of the structure. It also sets the Type member to WdfUsbInterfaceSelectSettingTypeUrb and sets the Types.Urb.Urb member to the value that is specified by Urb pointer.

To initialize a WDF_USB_INTERFACE_SELECT_SETTING_PARAMS structure, your driver must call one of the following functions:

WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_DESCRIPTOR
WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_SETTING
WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_URB

Examples

The following code example initializes a URB structure and then uses the structure as input to WdfUsbInterfaceSelectSetting.

WDF_USB_INTERFACE_SELECT_SETTING_PARAMS  selectSettingParams;
URB  urb;
NTSTATUS  Status;

//
// Initialize the URB structure here.
//
...

//
// Initialize the WDF_USB_INTERFACE_SELECT_SETTING_PARAMS 
// structure and call WdfUsbInterfaceSelectSetting.
//
WDF_USB_INTERFACE_SELECT_SETTING_PARAMS_INIT_URB(
                                      &selectSettingParams,
                                      &urb
                                      );

Status = WdfUsbInterfaceSelectSetting(
                                      UsbInterface,
                                      WDF_NO_OBJECT_ATTRIBUTES,
                                      &selectSettingParams
                                      );

Requirements

Requirement	Value
Target Platform	Universal
Minimum KMDF version	1.0
Minimum UMDF version	2.0
Header	wdfusb.h (include Wdfusb.h)

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