2020-04-10 02:47:05 +00:00
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From 9b297faabe3fc35741746aca39128fbb12e28113 Mon Sep 17 00:00:00 2001
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From: Li Jun <b47624@freescale.com>
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Date: Wed, 12 Nov 2014 15:16:33 +0800
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Subject: [PATCH] MLK-9829 usb: core: print suggested message if failed to get
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device descriptor
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This is required for USB OTG and EH compliance test 6.7.22(A-UUT “Device No
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Response” for connection timeout). When the connected usb device(PET) does
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not response to transactions, host will fail to get device descriptor.
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Signed-off-by: Li Jun <jun.li@freescale.com>
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(cherry picked from commit 86d0bd661ecbbdf97dd9a8ddbaf0d3811de7f39e)
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(cherry picked from commit 858af83637291d2ececfc7b2b4b17e3a371b53f3)
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---
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drivers/usb/core/hub.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/usb/core/hub.c
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+++ b/drivers/usb/core/hub.c
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2021-07-29 20:42:38 +00:00
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@@ -4779,7 +4779,8 @@ hub_port_init(struct usb_hub *hub, struc
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2020-04-10 02:47:05 +00:00
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}
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if (r) {
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if (r != -ENODEV)
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- dev_err(&udev->dev, "device descriptor read/64, error %d\n",
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+ dev_err(&udev->dev,
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+ "device no response, device descriptor read/64, error %d\n",
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r);
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retval = -EMSGSIZE;
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continue;
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