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USB: storage: Avoid I/O errors when issuing SCSI ioctls to JMicron USB/ATA bridge

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Here's the patch that implements the fix you suggested to avoid the
I/O errors that I was running into with my new USB enclosure with a
JMicron USB/ATA bridge, while issuing scsi-io USN or other such
queries used by Fedora's mkinitrd.
http://bugzilla.kernel.org/show_bug.cgi?id=9638#c85


/proc/bus/usb/devices:
T:  Bus=01 Lev=01 Prnt=01 Port=07 Cnt=04 Dev#=  5 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=152d ProdID=2329 Rev= 1.00
S:  Manufacturer=JMicron
S:  Product=USB to ATA/ATAPI Bridge
S:  SerialNumber=DE5088854FFF
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=  2mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

(patch applied and retested on a modified 2.6.27.2-libre.24.rc1.fc10)

Signed-off-by: Phil Dibowitz <phil@ipom.com>
Cc: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Phil Dibowitz 2008-10-19 08:17:54 +02:00 committed by Greg Kroah-Hartman
parent d66937d71a
commit 3030ca4cf4
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/storage/unusual_devs.h
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@ -1745,6 +1745,15 @@ UNUSUAL_DEV( 0x14cd, 0x6600, 0x0201, 0x0201,
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_IGNORE_RESIDUE ),
/* Reported by Alexandre Oliva <oliva@lsd.ic.unicamp.br>
* JMicron responds to USN and several other SCSI ioctls with a
* residue that causes subsequent I/O requests to fail. */
UNUSUAL_DEV( 0x152d, 0x2329, 0x0100, 0x0100,
"JMicron",
"USB to ATA/ATAPI Bridge",
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_IGNORE_RESIDUE ),
/* Reported by Robert Schedel <r.schedel@yahoo.de>
* Note: this is a 'super top' device like the above 14cd/6600 device */
UNUSUAL_DEV( 0x1652, 0x6600, 0x0201, 0x0201,