- ifno=dev->config.no_of_if;
- dev->config.no_of_if++; /* found an interface desc, increase numbers */
- memcpy(&dev->config.if_desc[ifno],&buffer[index],buffer[index]); /* copy new desc */
- dev->config.if_desc[ifno].no_of_ep=0;
-
+ if(((struct usb_interface_descriptor *) &buffer[index])->
+ bInterfaceNumber != curr_if_num) {
+ /* this is a new interface, copy new desc */
+ ifno = dev->config.no_of_if;
+ dev->config.no_of_if++;
+ memcpy(&dev->config.if_desc[ifno],
+ &buffer[index], buffer[index]);
+ dev->config.if_desc[ifno].no_of_ep = 0;
+ dev->config.if_desc[ifno].num_altsetting = 1;
+ curr_if_num = dev->config.if_desc[ifno].bInterfaceNumber;
+ } else {
+ /* found alternate setting for the interface */
+ dev->config.if_desc[ifno].num_altsetting++;
+ }