Motorola USB08 - page 160

Designer Reference Manual USB08 Evaluation Board
160 Universal USB Device Driver (USBIO) MOTOROLA
Universal USB Device Driver (USBIO)
IOCTL_USBIO_UNCONFIGURE_DEVICE
The IOCTL_USBIO_UNCONFIGURE_DEVICE operation is used to set
the device to its unconfigured state.
lpInBuffer Not used with this operation. Set to NULL.
nInBufferSize Not used with this operation. Set to zero.
lpOutBuffer Not used with this operation. Set to NULL.
nOutBufferSize Not used with this operation. Set to zero.
Comments A SET_CONFIGURATION request with the configuration value 0
appears on the bus. All pipe handles associated with the device will be
unbound and all pending requests will be cancelled.