The object you use to access USB devices from user space, returned by the IOUSBFamily version 3.2.0 and above.
UIKit for Mac 13.0+Beta
The functions listed here include all of the functions defined for the IOUSBDeviceInterface, IOUSBDeviceInterface182, IOUSBDeviceInterface187, IOUSBDeviceInterface197, IOUSBDeviceInterface245, IOUSBDeviceInterface300, or IOUSBDeviceInterface320 and some new functions that are available in macOS 10.7.3 and later.
Returns the amount of bandwidth available on the bus for allocation to periodic pipes. If the device is a high or super speed device, it will be the number of bytes per microframe (125 µsecs). If it is a full speed device, it will be the number of bytes per frame (1ms)
Represents an SBP2 normal command ORB. Supplies the APIs for configuring normal command ORBs. This includes setting the command block and writing the page tables for I/O. The ORBs are executed using the submitORB method in IOFireWireSBP2LibLoginInterface.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.