IOUSBGetEndpointIntervalEncodedMicroframes(_:_:)

Declaration

func IOUSBGetEndpointIntervalEncodedMicroframes(_ usbDeviceSpeed: UInt32, _ descriptor: UnsafePointer<IOUSBEndpointDescriptor>!) -> UInt32

Parameters

• usbDeviceSpeed:

  The operational speed of the device.

• descriptor:

  The endpoint descriptor to parse.

Return Value

The encoded endpoint interval.

Discussion

This method parses an endpoint descriptor and returns the service interval as n in (2^(n-1)) microframes.

See Also

Endpoint Descriptor Parsing

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