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nusb/usbd: provide vid and did in device info string for hubs

--- a/sys/src/cmd/nusb/usbd/hub.c

+++ b/sys/src/cmd/nusb/usbd/hub.c

@@ -199,8 +199,8 @@

 		devctl(h->dev, "info roothub csp %#08ux ports %d",

 			0x000009, h->nport);

 	else{

-		devctl(h->dev, "info hub csp %#08ulx ports %d %q %q",

-			ud->csp, h->nport, ud->vendor, ud->product);

+		devctl(h->dev, "info hub csp %#08ulx ports %d vid %#.4ux did %#.4ux %q %q",

+			ud->csp, h->nport, ud->vid, ud->did, ud->vendor, ud->product);

 		for(i = 1; i <= h->nport; i++)

 			if(hubfeature(h, i, Fportpower, 1) < 0)

 				fprint(2, "%s: %s: power: %r\n", argv0, fn);