USB Version

Hi,
How can i detect if my servers USB ports are either usb 1 or usb 2?
Thanks,
Alex

 

elwood:/# cat /proc/bus/usb/devices gives something like:

T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 6
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0

Spd=480 => USB2
Spd=12 => USB1

Kees

 

Thanks, but /proc/bus/usb/devices doesnt exist

 

Maybe you must plug in a USB device first?