+ if (buf) {
+ *pInterfaces = (WDU_INTERFACE*)(buf+len);
+ for (j=0; j<conf_desc->bNumInterfaces; j++) {
+ WDU_INTERFACE *iface = (WDU_INTERFACE*)(buf+len);
+
+ pActiveInterface[j] = iface;
+
+ pAlternateSettings[j] = &(iface->pAlternateSettings);
+ iface->dwNumAltSettings = usbdevice->config[i].interface[j].num_altsetting;
+ pActiveAltSetting[j] = &(iface->pActiveAltSetting);
+
+ len += sizeof(WDU_INTERFACE);
+ }
+ } else {
+ len += sizeof(WDU_INTERFACE) * conf_desc->bNumInterfaces;
+ }
+
+ for (j=0; j<conf_desc->bNumInterfaces; j++)
+ {
+ struct usb_interface *interface = &usbdevice->config[i].interface[j];
+
+ if (buf) {
+ *pAlternateSettings[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
+ /* FIXME: */
+ *pActiveAltSetting[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
+ }
+
+ for(k=0; k<interface->num_altsetting; k++)
+ {
+ unsigned char bNumEndpoints = interface->altsetting[k].bNumEndpoints;
+ WDU_ENDPOINT_DESCRIPTOR **pEndpointDescriptors;
+ WDU_PIPE_INFO **pPipes;
+
+ if (buf) {
+ WDU_ALTERNATE_SETTING *altset = (WDU_ALTERNATE_SETTING*)(buf+len);
+
+ altset->Descriptor.bLength = interface->altsetting[k].bLength;
+ altset->Descriptor.bDescriptorType = interface->altsetting[k].bDescriptorType;
+ altset->Descriptor.bInterfaceNumber = interface->altsetting[k].bInterfaceNumber;
+ altset->Descriptor.bAlternateSetting = interface->altsetting[k].bAlternateSetting;
+ altset->Descriptor.bNumEndpoints = interface->altsetting[k].bNumEndpoints;
+ altset->Descriptor.bInterfaceClass = interface->altsetting[k].bInterfaceClass;
+ altset->Descriptor.bInterfaceSubClass = interface->altsetting[k].bInterfaceSubClass;
+ altset->Descriptor.bInterfaceProtocol = interface->altsetting[k].bInterfaceProtocol;
+ altset->Descriptor.iInterface = interface->altsetting[k].iInterface;
+ pEndpointDescriptors = &(altset->pEndpointDescriptors);
+ pPipes = &(altset->pPipes);
+
+ }
+ len +=sizeof(WDU_ALTERNATE_SETTING);
+
+ if (buf) {
+ *pEndpointDescriptors = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
+ for (l = 0; l < bNumEndpoints; l++) {
+ WDU_ENDPOINT_DESCRIPTOR *ed = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
+
+ ed->bLength = interface->altsetting[k].endpoint[l].bLength;
+ ed->bDescriptorType = interface->altsetting[k].endpoint[l].bDescriptorType;
+ ed->bEndpointAddress = interface->altsetting[k].endpoint[l].bEndpointAddress;
+ ed->bmAttributes = interface->altsetting[k].endpoint[l].bmAttributes;
+ ed->wMaxPacketSize = interface->altsetting[k].endpoint[l].wMaxPacketSize;
+ ed->bInterval = interface->altsetting[k].endpoint[l].bInterval;
+
+ len += sizeof(WDU_ENDPOINT_DESCRIPTOR);
+ }
+
+ *pPipes = (WDU_PIPE_INFO*)(buf+len);
+ for (l = 0; l < bNumEndpoints; l++) {
+ WDU_PIPE_INFO *pi = (WDU_PIPE_INFO*)(buf+len);
+
+ pi->dwNumber = interface->altsetting[k].endpoint[l].bEndpointAddress;
+ pi->dwMaximumPacketSize = WDU_GET_MAX_PACKET_SIZE(interface->altsetting[k].endpoint[l].wMaxPacketSize);
+ pi->type = interface->altsetting[k].endpoint[l].bmAttributes & USB_ENDPOINT_TYPE_MASK;
+ if (pi->type == PIPE_TYPE_CONTROL)
+ pi->direction = WDU_DIR_IN_OUT;
+ else
+ {
+ pi->direction = interface->altsetting[k].endpoint[l].bEndpointAddress & USB_ENDPOINT_DIR_MASK ? WDU_DIR_IN : WDU_DIR_OUT;
+ }
+
+ pi->dwInterval = interface->altsetting[k].endpoint[l].bInterval;
+
+ len += sizeof(WDU_PIPE_INFO);
+ }
+ } else {
+ len +=(sizeof(WDU_ENDPOINT_DESCRIPTOR)+sizeof(WDU_PIPE_INFO))*bNumEndpoints;
+ }
+ }
+ }
+ }
+
+ return len;
+}