From 37b5801e16d2e192fe2b20f4af33aa8c6e8786f3 Mon Sep 17 00:00:00 2001
From: Parirajan Muthalagu <parirajan.muthalagu@stericsson.com>
Date: Wed, 25 Aug 2010 16:33:26 +0530
Subject: USB Gadget: Verify VBUS current before setting the device
 self-powered bit

Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com>
Signed-off-by: Parirajan Muthalagu <parirajan.muthalagu@stericsson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 include/linux/usb/ch9.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'include/linux/usb')

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index da2ed77d3e8d..b0f7e9f57176 100644
--- a/include/linux/usb/ch9.h
+++ b/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 */
-- 
cgit v1.2.3