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Date:   Fri,  1 May 2020 15:21:31 +0200
From:   Greg Kroah-Hartman <>
Cc:     Greg Kroah-Hartman <>,, Alan Stern <>,
        Cyril Roelandt <>
Subject: [PATCH 4.4 43/70] usb-storage: Add unusual_devs entry for JMicron JMS566

From: Alan Stern <>

commit 94f9c8c3c404ee1f7aaff81ad4f24aec4e34a78b upstream.

Cyril Roelandt reports that his JMicron JMS566 USB-SATA bridge fails
to handle WRITE commands with the FUA bit set, even though it claims
to support FUA.  (Oddly enough, a later version of the same bridge,
version 2.03 as opposed to 1.14, doesn't claim to support FUA.  Also
oddly, the bridge _does_ support FUA when using the UAS transport
instead of the Bulk-Only transport -- but this device was blacklisted
for uas in commit bc3bdb12bbb3 ("usb-storage: Disable UAS on JMicron
SATA enclosure") for apparently unrelated reasons.)

This patch adds a usb-storage unusual_devs entry with the BROKEN_FUA
flag.  This allows the bridge to work properly with usb-storage.

Reported-and-tested-by: Cyril Roelandt <>
Signed-off-by: Alan Stern <>
CC: <>
Signed-off-by: Greg Kroah-Hartman <>

 drivers/usb/storage/unusual_devs.h |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2208,6 +2208,13 @@ UNUSUAL_DEV(  0x3340, 0xffff, 0x0000, 0x
+/* Reported by Cyril Roelandt <> */
+UNUSUAL_DEV(  0x357d, 0x7788, 0x0114, 0x0114,
+		"JMicron",
+		"USB to ATA/ATAPI Bridge",
 /* Reported by Andrey Rahmatullin <> */
 UNUSUAL_DEV(  0x4102, 0x1020, 0x0100,  0x0100,

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