SetInterfaceAltSetting Method (deviceHandle, interfaceNumber, alternateSetting)

LibUsbDotNet

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LibUsbDotNet 2.2.8 SetInterfaceAltSetting Method (deviceHandle, interfaceNumber, alternateSetting)

Activate an alternate setting for an interface.

Declaration Syntax

Visual Basic

Visual C++

public static int SetInterfaceAltSetting(
	MonoUsbDeviceHandle deviceHandle,
	int interfaceNumber,
	int alternateSetting
)

Public Shared Function SetInterfaceAltSetting ( _
	deviceHandle As MonoUsbDeviceHandle, _
	interfaceNumber As Integer, _
	alternateSetting As Integer _
) As Integer

public:
static int SetInterfaceAltSetting(
	[InAttribute] MonoUsbDeviceHandle^ deviceHandle, 
	int interfaceNumber, 
	int alternateSetting
)

Parameters

deviceHandle (MonoUsbDeviceHandle): A device handle.

interfaceNumber (Int32): The bInterfaceNumber of the previously-claimed interface.

alternateSetting (Int32): The bAlternateSetting of the alternate setting to activate.

Return Value

0 on success
ErrorNotFound if the interface was not claimed, or the requested alternate setting does not exist
ErrorNoDevice if the device has been disconnected
another MonoUsbError code on other failure

Remarks

The interface must have been previously claimed with ClaimInterface(MonoUsbDeviceHandle, Int32).

You should always use this function rather than formulating your own SET_INTERFACE control request. This is because the underlying operating system needs to know when such changes happen.

This is a blocking function.

Note: Member documentation was originally generated using the Libusb-1.0 API documentation: Device handling and enumeration

Assembly: LibUsbDotNet (Module: LibUsbDotNet) Version: 2.2.8.104 (2.2.8.104)

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