IOUSBGetNextEndpointDescriptor(_:_:_:)

Declaration

func IOUSBGetNextEndpointDescriptor(_ configurationDescriptor: UnsafePointer<IOUSBConfigurationDescriptor>!, _ interfaceDescriptor: UnsafePointer<IOUSBInterfaceDescriptor>!, _ currentDescriptor: UnsafePointer<IOUSBDescriptorHeader>!) -> UnsafePointer<IOUSBEndpointDescriptor>!

Parameters

• configurationDescriptor:

  A configuration descriptor that contains the descriptors to iterate through.

• interfaceDescriptor:

  An interface descriptor within the bounds of configurationDescriptor.

• currentDescriptor:

  A descriptor pointer within the bounds of configurationDescriptor, or nil.

Return Value

A descriptor pointer, or nil if no matching descriptor returns.

Discussion

This method uses IOUSBGetNextAssociatedDescriptorWithType(_:_:_:_:) to find the next endpoint descriptor for a specific interface descriptor.

See Also

Endpoint Descriptor Parsing

• IOUSBGetEndpointDirection(_:)
• IOUSBGetEndpointAddress(_:)
• IOUSBGetEndpointNumber(_:)
• IOUSBGetEndpointType(_:)
• IOUSBGetEndpointMaxPacketSize(_:_:)
• IOUSBGetEndpointIntervalEncodedMicroframes(_:_:)
• IOUSBGetEndpointIntervalMicroframes(_:_:)
• IOUSBGetEndpointIntervalFrames(_:_:)
• IOUSBGetEndpointMaxStreamsEncoded(_:_:_:)
• IOUSBGetEndpointMaxStreams(_:_:_:)