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Old 01-30-2009, 10:14 AM   #1
shirishag75
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Registered: Jun 2005
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Not getting usb 2.0 speeds or port on my system


Hi all,
I am running linux 2.6.27.9-generic kernel on ubuntu. I have 4 ports on the back of my motherboard and 2 on the motherboard itself. All the devices I am running are using 1.1 speeds only and not 2.0.

Here is the output of the devices after changing the ports and rebooting the system.

Code:
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 058f:6387 Alcor Micro Corp. Transcend JetFlash Flash Drive
Bus 001 Device 002: ID 0bc2:3000 Seagate RSS LLC 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Code:
Bus 004 Device 005: ID 058f:6387 Alcor Micro Corp. Transcend JetFlash Flash Drive
Bus 004 Device 002: ID 0bc2:3000 Seagate RSS LLC 
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
and last but not the least.

Code:
Bus 004 Device 006: ID 058f:6387 Alcor Micro Corp. Transcend JetFlash Flash Drive
Bus 004 Device 004: ID 0bc2:3000 Seagate RSS LLC 
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
This is the output of my /etc/fstab as well.

Code:
$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
# /dev/sda2
UUID=8249aa04-a33e-4d70-abe1-d59537568e6d /               ext3    relatime,errors=remount-ro 0       1
# /dev/sda1
UUID=60569365-731d-4877-bb6f-6e684a68c12b /boot           ext3    relatime        0       2
# /dev/sda3
UUID=9929c56a-14d9-49fd-b207-6f0841d10b2a /home           ext3    relatime        0       2
# /dev/sda5
UUID=dbcf7969-cd1d-40eb-8fd1-a7f2f8827040 none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0
none    /proc/bus/usb    usbfs    default 0    0    0    0
I have couple of questions :-

a. As can be seen the Device ID of the 2.0 root hub doesn't change? Why?

b. Is there anyway (any driver or something) that will get me usb 2.0 speeds on all the devices?
 
Old 01-31-2009, 05:02 AM   #2
Didier Spaier
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Registered: Nov 2008
Location: Paris, France
Distribution: Slackware{,64}-{14.1,current} on a Lenovo Thinkpad T61 6457-4XG
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I have this:
Code:
bash-3.1# lsusb
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0458:0036 KYE Systems Corp. (Mouse Systems) Pocket Mouse LE
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 03f0:1812 Hewlett-Packard 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
bash-3.1#
but get USB 2 speed on my two USB ports. I could check that with cp and rsync to and from an external hard drive.

Side note: I do not have this line in my /etc/fstab file:
Code:
none    /proc/bus/usb    usbfs    default 0    0    0    0
and everything works. May be a different configuration at startup, I will look at that.

But I do not understand why you have four '0' on the last line of your /etc/fstab file, you should have only two (one for the dump field and one for the pass field).
 
  


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