---

yaml --- r: 213537 b: refs/heads/master c: 37b5801 h: refs/heads/master i: 213535: 3b4327d v: v3
git-mirror · Oct 22, 2010 · 63777bc · 63777bc
1 parent 72de940
commit 63777bc
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Showing 3 changed files with 18 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 90593899de83a6e6fdea563d058acd2f4334e3f9
+refs/heads/master: 37b5801e16d2e192fe2b20f4af33aa8c6e8786f3
diff --git a/trunk/drivers/usb/gadget/composite.c b/trunk/drivers/usb/gadget/composite.c
@@ -1074,7 +1074,13 @@ static int composite_bind(struct usb_gadget *gadget)
 	cdev->bufsiz = USB_BUFSIZ;
 	cdev->driver = composite;
 
-	usb_gadget_set_selfpowered(gadget);
+	/*
+	 * As per USB compliance update, a device that is actively drawing
+	 * more than 100mA from USB must report itself as bus-powered in
+	 * the GetStatus(DEVICE) call.
+	 */
+	if (CONFIG_USB_GADGET_VBUS_DRAW <= USB_SELF_POWER_VBUS_MAX_DRAW)
+		usb_gadget_set_selfpowered(gadget);
 
 	/* interface and string IDs start at zero via kzalloc.
 	 * we force endpoints to start unassigned; few controller

diff --git a/trunk/include/linux/usb/ch9.h b/trunk/include/linux/usb/ch9.h
@@ -808,4 +808,14 @@ enum usb_device_state {
 	 */
 };
 
+/*-------------------------------------------------------------------------*/
+
+/*
+ * As per USB compliance update, a device that is actively drawing
+ * more than 100mA from USB must report itself as bus-powered in
+ * the GetStatus(DEVICE) call.
+ * http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34
+ */
+#define USB_SELF_POWER_VBUS_MAX_DRAW		100
+
 #endif /* __LINUX_USB_CH9_H */