up vote 1 down vote favorite
share [g+] share [fb]

Fedora 14 HP Netbook 210 Mini

My netbook book is new 3 weeks, so should support 2.0.

I have just bought a new flash drive 4GB. It seems very slow when copying data.

I have done the following using lsusb:

Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
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 1bcf:0007 Sunplus Innovation Technology Inc. Optical Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 5986:0314 Acer, Inc 
Bus 001 Device 003: ID 090c:1000 Feiya Technology Corp. Flash Drive
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

But doesn't give me any details of my actual flash drive that I have bought.

Many thanks for any suggestions,

link|improve this question
87% accept rate
Your output tells you that the device is plugged in to a 2.0 hub. Check dmesg to see what driver it loads as noted in the answer – aking1012 Dec 30 '10 at 17:35
feedback

1 Answer

up vote 3 down vote accepted

On my system I get: 

Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  
Bus 005 Device 004: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse  
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub  
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 006: ID 0781:5530 SanDisk Corp.   
Bus 002 Device 003: ID 090c:c371 Feiya Technology Corp.   
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

This tells me that SanDisk device is on a 2.0 port by matching bus numbers

right after the device is connected and powered up... dmesg | tail -n 20 gives me this:

[91212.433178] sd 6:0:0:0: [sdb] Write Protect is off  
[91212.433183] sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00  
[91212.433186] sd 6:0:0:0: [sdb] Assuming drive cache: write through  
[91212.435812] sd 6:0:0:0: [sdb] Assuming drive cache: write through  
[91212.435819]  sdb: sdb1  
[91212.445572] sd 6:0:0:0: [sdb] Assuming drive cache: write through  
[91212.445577] sd 6:0:0:0: [sdb] Attached SCSI removable disk  
[91337.279149] usb 2-7: USB disconnect, address 6  
[91435.428546] usb 2-7: new high speed USB device using ehci_hcd and address 7  
[91435.562159] scsi7 : usb-storage 2-7:1.0  
[91436.560919] scsi 7:0:0:0: Direct-Access     SanDisk  Cruzer           1.00 PQ: 0 ANSI: 2  
[91436.561956] sd 7:0:0:0: Attached scsi generic sg2 type 0  
[91436.563973] sd 7:0:0:0: [sdb] 15625216 512-byte logical blocks: (8.00 GB/7.45 GiB)  
[91436.566984] sd 7:0:0:0: [sdb] Write Protect is off  
[91436.566991] sd 7:0:0:0: [sdb] Mode Sense: 03 00 00 00  
[91436.566996] sd 7:0:0:0: [sdb] Assuming drive cache: write through  
[91436.570387] sd 7:0:0:0: [sdb] Assuming drive cache: write through  
[91436.570396]  sdb: sdb1  
[91436.580519] sd 7:0:0:0: [sdb] Assuming drive cache: write through  
[91436.580525] sd 7:0:0:0: [sdb] Attached SCSI removable disk

Telling me here: [91435.428546] usb 2-7: new high speed USB device using ehci_hcd and address 7 that it's a 2.0 device

you also may find lsusb more succinct than lspci

link|improve this answer
A low-speed device would be handled by either ohci_hcd or uhci_hcd. – whitequark Dec 11 '10 at 14:36
feedback

Your Answer

 
or
required, but never shown
discard

Not the answer you're looking for? Browse other questions tagged or ask your own question.