USB HOST DRIVER V03 Freescale Semiconductor / Motorola, USB HOST DRIVER V03 Datasheet - Page 87

• Manufacturer Part Number: USB HOST DRIVER V03
• Description: USB Host Driver v03
• Manufacturer: Freescale Semiconductor / Motorola

Comments:
This function returns the interface descriptor in a
. The
PUSB_ENDPOINT_DESCRIPTOR
caller should allocate a buffer pointed by the
, large enough to store the
pDescriptor
structure. The endpoint descriptor requested is relative to
PUSB_ENDPOINT_DESCRIPTOR
the interface and configuration descriptors. The caller should properly specify the
configuration descriptor index
, interface descriptor index
ConfigIndex
InterfaceIndex
within the configuration, and the endpoint descriptor index
within that
ep_index
interface. Alternatively by specifying –1 in
and
, a Client
ConfigIndex
InterfaceIndex
can obtain the descriptor by specifying the endpoint address in the
EndpointIndex
parameter. The function sends a
request to the Driver.
IOCTL_USB_GET_DESCRIPTOR
M
4-17
MOTUSB Library.
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE