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Old 02-02-2006, 10:10 AM   #1
art
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Enabling USB2 in SuSE 10


Hello All,
My recently installed SUSE 10 seems to be using
USB1 instead of USB2.
The transfers between the same machine and same pendrive used to work faster in my old SuSE 9.1.
Can someone tell me how to enable USB2 ?
Thanks in advance.
art

PS: The output of dmesg when I connect the pendrive is:

usb 5-4: new high speed USB device using ehci_hcd and address 6
scsi6 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
Vendor: S Talent Model: Flash Drive 2.0 Rev: 2010
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sdb: 506880 512-byte hdwr sectors (260 MB)
sdb: Write Protect is off
sdb: Mode Sense: 43 00 00 00
sdb: assuming drive cache: write through
SCSI device sdb: 506880 512-byte hdwr sectors (260 MB)
sdb: Write Protect is off
sdb: Mode Sense: 43 00 00 00
sdb: assuming drive cache: write through
sdb: sdb1
Attached scsi removable disk sdb at scsi6, channel 0, id 0, lun 0
Attached scsi generic sg1 at scsi6, channel 0, id 0, lun 0, type 0
usb-storage: device scan complete
usb 5-4: USB disconnect, address 6
usb 5-4: new high speed USB device using ehci_hcd and address 7
scsi7 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 7
usb-storage: waiting for device to settle before scanning
 
Old 02-02-2006, 10:56 AM   #2
abisko00
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Quote:
usb 5-4: new high speed USB device using ehci_hcd and address 7
This shows that you are already using USB2. So the speed difference must have a different cause.

I would assume that you didn't use sync'ed transfer in SUSE 9.1, which makes the impression of very speedy transfer, but as soon as you unmount it'll take its time. In SUSE 10.0, USB devices are mounted with the sync option, so transfer may appear slower, but transfer is instantaneous.
 
Old 02-03-2006, 11:40 AM   #3
art
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Thanks, but AFAIK USB were mounted with sync option in my old SUSE 9.1.
Besides, I have compared the transfer speed against an Ubuntu box (using the
same pendrive) and the performance was notable superior in Ubuntu.

If the device has corretly been detected, as you mentioned before, I guess it might be another problem (may be hardware) that makes it to work slowly....

any suggestion?

thanks.
 
Old 02-03-2006, 03:15 PM   #4
apachedude
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This is a bug in SuSE 10.

You can see more here: http://www.linuxquestions.org/questi...earchid=179580 (includes link to Bugzilla report).

And here: http://www.suseforums.net/index.php?showtopic=20100

Good thing is people have reported the beta versions of 10.1 are working fine.
 
Old 02-04-2006, 09:04 AM   #5
abisko00
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Quote:
Originally Posted by apachedude
This is a bug in SuSE 10.
Not necessarily. AFAIK, the bug only affects USB1 devices. But here, we are talking about USB2, which should work fine in 10.0.
 
Old 02-04-2006, 03:30 PM   #6
apachedude
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Quote:
Originally Posted by abisko00
Not necessarily. AFAIK, the bug only affects USB1 devices. But here, we are talking about USB2, which should work fine in 10.0.
It doesn't. My devices are USB2.
 
Old 02-05-2006, 01:56 AM   #7
fragos
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Start(K Menu) - System - Monitor - USB devices - gives more understandable status and operational characteristics of USB devices detected.
 
Old 02-05-2006, 05:25 AM   #8
abisko00
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Quote:
Originally Posted by apachedude
It doesn't. My devices are USB2.
Hmmm... but my USB2 devices work just fine and USB1 is damn slow when mounted with sync. Sorry, this is not a very prouctive contribution, but doesn't that show the problem is limited to certain hardware only? I assume you face a different problem than the one from the bug-report.

Last edited by abisko00; 02-05-2006 at 07:15 AM.
 
Old 02-06-2006, 01:50 PM   #9
art
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thanks to all, it actually was a problem with BIOS configuration, where USB2 was enabled, but set to full-speed mode.

regards.
art
 
Old 02-06-2006, 04:15 PM   #10
apachedude
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Quote:
Originally Posted by abisko00
Hmmm... but my USB2 devices work just fine and USB1 is damn slow when mounted with sync. Sorry, this is not a very prouctive contribution, but doesn't that show the problem is limited to certain hardware only? I assume you face a different problem than the one from the bug-report.
I'll keep that in mind. I'm studying for midterms right now, but I"ll check this when I'm free.
 
Old 02-06-2006, 07:44 PM   #11
fragos
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Midterms definitely come first. The concept of slow and fast are very subjective. After getting great grades on your midterms, think about trying to quantify speed. Perhaps that can't be done but it could lead to a solution. What software you're running can make a difference.
 
  


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