Re: JMS56x not working reliably with uas driver

From: Oliver Neukum <oneukum-IBi9RG/b67k@public.gmane.org>
To: George Cherian
	<gcherian-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>
Cc: George.Cherian-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org,
	Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org,
	linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: JMS56x not working reliably with uas driver
Date: Wed, 21 Dec 2016 15:39:45 +0100	[thread overview]
Message-ID: <1482331185.7638.14.camel@suse.com> (raw)
In-Reply-To: <585A79F5.7080701-M3mlKVOIwJVv6pq1l3V1OdBPR1lH4CV8@public.gmane.org>

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On Wed, 2016-12-21 at 18:17 +0530, George Cherian wrote:
> [  843.149653] scsi host5: uas_post_reset: alloc streams error -19
> after 
> reset

That would mean the endpoints are gone. Which is odd.

> [  843.157268] sd 5:0:0:0: [sdb] Synchronizing SCSI cache

Could you try the attached patch and do a SCSI log of the enumeration?

	Regards
		Oliver


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From d4ddac88bbf9cb15e7d8638582f96d31e245f15b Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.com>
Date: Wed, 21 Dec 2016 15:34:54 +0100
Subject: [PATCH] uas: device crashes on reset

We avoid resetting it.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
 drivers/usb/core/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index d2e50a2..52483fb 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -194,6 +194,8 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x1532, 0x0116), .driver_info =
 			USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },
 
+	{ USB_DEVICE(0x152d, 0x9561), .driver_info = USB_QUIRK_RESET },
+
 	/* BUILDWIN Photo Frame */
 	{ USB_DEVICE(0x1908, 0x1315), .driver_info =
 			USB_QUIRK_HONOR_BNUMINTERFACES },
-- 
2.1.4

