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From 9b297faabe3fc35741746aca39128fbb12e28113 Mon Sep 17 00:00:00 2001
From: Li Jun <b47624@freescale.com>
Date: Wed, 12 Nov 2014 15:16:33 +0800
Subject: [PATCH] MLK-9829 usb: core: print suggested message if failed to get
device descriptor
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is required for USB OTG and EH compliance test 6.7.22(A-UUT “Device No
Response” for connection timeout). When the connected usb device(PET) does
not response to transactions, host will fail to get device descriptor.
Signed-off-by: Li Jun <jun.li@freescale.com>
(cherry picked from commit 86d0bd661ecbbdf97dd9a8ddbaf0d3811de7f39e)
(cherry picked from commit 858af83637291d2ececfc7b2b4b17e3a371b53f3)
---
drivers/usb/core/hub.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4729,7 +4729,8 @@ hub_port_init(struct usb_hub *hub, struc
}
if (r) {
if (r != -ENODEV)
- dev_err(&udev->dev, "device descriptor read/64, error %d\n",
+ dev_err(&udev->dev,
+ "device no response, device descriptor read/64, error %d\n",
r);
retval = -EMSGSIZE;
continue;
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