[CentOS] usb device path/name translating

zGreenfelder

zgreenfelder at gmail.com
Wed Mar 13 23:01:14 UTC 2013


I can't seem to find the info I'm looking for in google, hopefully
someone has dealt with these sorts of issues in the past.

I have a machine where my messages file keeps getting lines like:
Mar 13 18:34:43 nemesis kernel: usb 2-6: reset high speed USB device
number 2 using ehci_hcd
Mar 13 18:34:57 nemesis kernel: usb 2-6: reset high speed USB device
number 2 using ehci_hcd
Mar 13 18:35:07 nemesis kernel: usb 2-6: reset high speed USB device
number 2 using ehci_hcd
Mar 13 18:35:09 nemesis kernel: usb 2-6: reset high speed USB device
number 2 using ehci_hcd
Mar 13 18:36:35 nemesis kernel: usb 2-6: reset high speed USB device
number 2 using ehci_hcd

I assumed the issue was my usb3 drive, disconnected... errors persist.
I run lsusb and get
[root at nemesis ~]# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 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 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 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 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0bda:0151 Realtek Semiconductor Corp. Mass
Storage Device (Multicard Reader)
Bus 003 Device 002: ID 413c:1003 Dell Computer Corp. Keyboard Hub
Bus 004 Device 002: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS
Bus 004 Device 003: ID 045e:001e Microsoft Corp. IntelliMouse Explorer
Bus 003 Device 003: ID 413c:2010 Dell Computer Corp. Keyboard
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 0781:5567 SanDisk Corp. Cruzer Blade

and looking in /proc/bus/usb, I don't find anything that looks like a
direct mapping.  does anyone have some pointers for translating these
device numbers/paths to the physical hardware?

thanks.
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