Developer --> Technical Publications
PATHHardware Documentation > USB Devices > Mac OS USB DDK API Reference

USB Power and Bus Attribute Constants

    kUSB100mAAvailable  = 50
    kUSB500mAAvailable  = 250
    kUSB100mA           = 50
    kUSBAtrBusPowered   = 0x80
    kUSBAtrSelfPowered  = 0x40
    kUSBAtrRemoteWakeup = 0x20
© 1999 Apple Computer, Inc.

Previous | Back Up One Level | Next | Show Frames | Hide Frames