This fixes the issue, that usbd was unable to get the desc-
riptor of the HUB and some cleanups in the OR creation of
some requests.

Reference: /n/sources/patch/applied/usbd-hub-fix
Date: Wed Feb  1 15:53:48 CET 2006

--- /sys/src/cmd/usb/usbd/setup.c	Wed Feb  1 15:52:42 2006
+++ /sys/src/cmd/usb/usbd/setup.c	Wed Feb  1 15:52:38 2006
@@ -25,7 +25,7 @@
 void
 setconfig(Device *d, int n)
 {
-	setup0(d, RH2D, SET_CONFIGURATION, n, 0, 0);
+	setup0(d, RH2D|Rstandard|Rdevice, SET_CONFIGURATION, n, 0, 0);
 	d->state = Configured;
 }
 
--- /sys/src/cmd/usb/lib/usb.h	Wed Feb  1 15:53:01 2006
+++ /sys/src/cmd/usb/lib/usb.h	Wed Feb  1 15:52:57 2006
@@ -109,6 +109,7 @@
 	HID = 0x21,
 	REPORT = 0x22,
 	PHYSICAL = 0x23,
+	HUB	= 0x29,
 
 	/* feature selectors */
 	DEVICE_REMOTE_WAKEUP = 1,
--- /sys/src/cmd/usb/usbd/hub.c	Wed Feb  1 15:53:26 2006
+++ /sys/src/cmd/usb/usbd/hub.c	Wed Feb  1 15:53:23 2006
@@ -45,7 +45,7 @@
 	h->ctlrno = parent->ctlrno;
 	h->dev0 = parent->dev0;
 
-	if (setupreq(d->ep[0], RD2H|Rclass|Rdevice, GET_DESCRIPTOR, (0<<8)|0, 0, sizeof(buf)) < 0 ||
+	if ((setupreq(d->ep[0], RD2H|Rclass|Rdevice, GET_DESCRIPTOR, (HUB<<8)|0, 0, DHUBLEN) < 0) ||
 	   (nr = setupreply(d->ep[0], buf, sizeof(buf))) < DHUBLEN) {
 		fprint(2, "usbd: error reading hub descriptor\n");
 		free(h);
@@ -117,11 +117,10 @@
 {
 	int cmd;
 
+	cmd = CLEAR_FEATURE;
 	if(on)
 		cmd = SET_FEATURE;
-	else
-		cmd = CLEAR_FEATURE;
-	setup0(h->d, Rclass|Rother, cmd, feature, port, 0);
+	setup0(h->d, RH2D|Rclass|Rother, cmd, feature, port, 0);
 }
 
 void