Ioctl_Usbio_Get_Current_Frame_Number - Motorola USB08 Reference Manual

Universal USB Device Driver (USBIO)

IOCTL_USBIO_GET_CURRENT_FRAME_NUMBER

lpInBuffer
nInBufferSize
lpOutBuffer
nOutBufferSize
Comments
Designer Reference Manual
168
The IOCTL_USBIO_GET_CURRENT_FRAME_NUMBER operation
returns the current value of the frame number counter that is maintained
by the USBD.
Not used with this operation. Set to Null.
Not used with this operation. Set to zero.
Pointer to a buffer that will receive an USBIO_FRAME_NUMBER
(page 205) data structure.
Specifies the size, in bytes, of the buffer pointed to by lpOutBuffer,
which has to be at least sizeof(USBIO_FRAME_NUMBER) for this
operation.
The returned frame number is a 32 bit value. The lower 11 bits of this
value correspond to the frame number value in the Start Of Frame token
on the bus.
Universal USB Device Driver (USBIO)
USB08 Evaluation Board
MOTOROLA