SanDisk Cruzer Flash Disk Revisited
John Wendel
jwendel at fnmoc.navy.mil
Tue Jan 20 23:53:15 UTC 2004
On Sunday 18 January 2004 10:04 am, W. Chris Shank wrote:
> There was a thread on Cruzer mini 256 flash disk. I have yet to get
> it to mount correctly in fedora or any linux box with USB 2.0.
> However, I did it working on an older (crica 1998) laptop with what
> is probably USB 1.1. The output of /proc/bus/usb/devices confirmed
> that on the newer machine with Fedora, the cruzer was attempting to
> operate at USB 2.0 Speed (480Mbps) whereas on the older machine it
> was operating at 12Mbps (USB 1.0/1.1 speed). The linux kernel on
> the laptop was from Morphix, a debian derived kernel (2.4.21-xfs).
>
> So I'm wondering if I could force the cruzer to operate in USB 1.1
> mode in Fedora, then perhaps it would work? Anyone know if this is
> possible and how to make it so?
>
> Thanks
>
>
> --
> W. Chris Shank
> ACE Technology Group, LLC
> http://www.acetechgroup.com
> (610) 647-1055
I've got one working on USB 1.1 here.
I had to "modprobe usb-storage" by hand to get it to work. Mounted
/dev/sda1 /mnt/floppy as root. Don't know how to make all this
automagical, but the device does work.
I've used it on a USB 2.0 machine using Knoppix and everything just
worked, so I don't know if it was actually using USB 2.0 or 1.1.
/proc/bus/usb/devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI Root Hub
S: SerialNumber=ff80
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0781 ProdID=8185 Rev= 1.25
S: Manufacturer=SanDisk Corporation
S: Product=Cruzer Mini
S: SerialNumber=000267792
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr= 70mA
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= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
/proc/scsi/usb-storage-0/1
Host scsi1: usb-storage
Vendor: SanDisk Corporation
Product: Cruzer Mini
Serial Number: 000267792
Protocol: Transparent SCSI
Transport: Bulk
GUID: 078181850000000000267792
Attached: Yes
Regards,
John
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