Hello All, I have been trying to load usbser.sys
windows driver using Interface Association
Descriptor(IAD), because my device controller will
work as multi-function device,one of the funtion will
be usb-to-serial gadget.
When I load the usbser.sys based on IAD, the driver
loaded properly , created one COM port but there is
nothing on data interface, means no IN tokens on
Interrupt and Bulk IN endpoints from host,is there
something wrong with this approach?
If I load usbser.sys based on VID/PID, driver works
fine.
My IAD looks like:
/*IAD for comm class*/
struct usb_interface_assoc_descriptor iad =
{
0x08, /*IAD length*/
0x0B, /*IAD type*/
0x00, /*fisrt interface*/
0x02, /*number of interfaces*/
USB_CLASS_COMM, /*function class*/
0x02, /*sub class*/
0x01, /*protocol*/
0x00 /*FUNCTION number*/
};
Is there something wrong in this, can somebody guide
me here how to go about it?
Kind Regards
-jurel
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