Ioctl_Usbio_Pipe_Control_Transfer_In - Motorola USB08 Reference Manual

Universal USB Device Driver (USBIO)

IOCTL_USBIO_PIPE_CONTROL_TRANSFER_IN

lpInBuffer
nInBufferSize
lpOutBuffer
nOutBufferSize
Comments
Designer Reference Manual
180
The IOCTL_USBIO_PIPE_CONTROL_TRANSFER_IN operation is
used to generate a specific request (setup packet) for a control pipe with
a data transfer direction from device to host.
Pointer to a buffer that contains an
USBIO_PIPE_CONTROL_TRANSFER
data structure has to be filled completely by the caller.
Specifies the size, in bytes, of the buffer pointed to by lpInBuffer,
which has to be sizeof(USBIO_PIPE_CONTROL_TRANSFER) for this
operation.
Pointer to a buffer that receives the data transferred from the device
during the data phase of the control transfer. If no data transfer is
required the pointer may be NULL.
Specifies the size, in bytes, of the buffer pointed to by lpOutBuffer. If
this value is set to zero then there is no data transfer phase.
This request is intended to be used with additional control pipes a device
might provide. It is not possible to generate a control transfer for the
default endpoint zero with this operation.
Universal USB Device Driver (USBIO)
(page 209) data structure. This
USB08 Evaluation Board
MOTOROLA