On Sun, 24 Dec 2006, Francesco Foresti wrote:
> Alle 17:41, sabato 23 dicembre 2006, hai scritto:
> > In fact it _is_ a hardware (or firmware) issue. It looks like your device
> > reports incorrect residue values (the "R 4096" above). This means that it
> > violates the USB Mass Storage protocol specification. Mac OS X and
> > Windows ignore the bogus residue values but Linux doesn't.
> >
> > If you provide the necessary device information (the entry in
> > /proc/bus/usb/devices or output from "lsusb -v") then a blacklist entry
> > could be created to work around the device's shortcomings.
> >
> > Alan Stern
> And this is the relevant part of proc/bus/usb/devices :
>
> T: Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=14cd ProdID=6600 Rev= 2.01
> S: Manufacturer=Super Top
> S: Product=USB 2.0 IDE DEVICE
> S: SerialNumber=??????????
> C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA
> 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
The patch is below. Devices that need US_FL_IGNORE_RESIDUE sometimes need
other flags as well, so let us know what happens.
Alan Stern
Index: usb-2.6/drivers/usb/storage/unusual_devs.h
===================================================================
--- usb-2.6.orig/drivers/usb/storage/unusual_devs.h
+++ usb-2.6/drivers/usb/storage/unusual_devs.h
@@ -1358,6 +1358,13 @@ UNUSUAL_DEV( 0x1370, 0x6828, 0x0110, 0x
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_IGNORE_RESIDUE ),
+/* Reported by Francesco Foresti <[EMAIL PROTECTED]> */
+UNUSUAL_DEV( 0x14cd, 0x6600, 0x0201, 0x0201,
+ "Super Top",
+ "IDE DEVICE",
+ US_SC_DEVICE, US_PR_DEVICE, NULL,
+ US_FL_IGNORE_RESIDUE ),
+
/* patch submitted by Davide Perini <[EMAIL PROTECTED]>
* and Renato Perini <[EMAIL PROTECTED]>
*/
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