Motorola USB08 - page 199

Universal USB Device Driver (USBIO)
Programming Interface
USB08 Evaluation Board Designer Reference Manual
MOTOROLA Universal USB Device Driver (USBIO) 199
RequestTimeout
Specifies the time-out interval, in milliseconds, to be used for
synchronous operations. A value of zero means an infinite interval
(time-out disabled).
The default time-out value is defined by the registry parameter
RequestTimeout.
Comments This structure is intended to be used with
IOCTL_USBIO_GET_DEVICE_PARAMETERS (page 164) and
IOCTL_USBIO_SET_DEVICE_PARAMETERS (page 165) operations.