MSGID: 1:379/45 f2cab47a
 REPLY: 1:379/45 d7302d95
 TZUTC: -0500
 CHARSET: PC-8
From: Randall Parker 

George,

I do not have a command called lcpci.

I did find this as a way to get an answer:

[randall{at}localhost boot]$ cat /proc/bus/usb/devices

T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2 B:  Alloc= 
0/900 us ( 0%), #Int=  0, #Iso=  0 D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00
MxPS=64 #Cfgs=  1 P:  Vendor=0000 ProdID=0000 Rev= 2.06 S:  Manufacturer=Linux
2.6.18-1.2239.fc5 uhci_hcd S:  Product=UHCI Host Controller
S:  SerialNumber=0000:00:1f.4
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  )
Sub=00 Prot=00 Driver=hub E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=255ms

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2 B:  Alloc=
93/900 us (10%), #Int=  1, #Iso=  0 D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00
MxPS=64 #Cfgs=  1 P:  Vendor=0000 ProdID=0000 Rev= 2.06 S:  Manufacturer=Linux
2.6.18-1.2239.fc5 uhci_hcd S:  Product=UHCI Host Controller
S:  SerialNumber=0000:00:1f.2
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  )
Sub=00 Prot=00 Driver=hub E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=255ms

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=1.5 MxCh= 0 D:  Ver= 1.10
Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1 P:  Vendor=045e ProdID=0047 Rev=
3.00 S:  Manufacturer=Microsoft
S:  Product=Microsoft 5-Button Mouse with IntelliEye(TM) C:* #Ifs= 1 Cfg#= 1
Atr=a0 MxPwr=100mA I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02
Driver=usbhid E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=10ms
[randall{at}localhost boot]$ lcpci
bash: lcpci: command not found
[randall{at}localhost boot]$

I'm told elsewhere that the Spd value of 12 is USB v1.1. A Spd value of 480
means USB 2.0. The Ver field is consistent with that interpretation.


George Sherwood wrote:
> On Sat, 16 Dec 2006 12:44:44 -0800, Randall Parker wrote:
>
>> Can Linux report what USB version the USB ports are on a PC?
>>
>> If so, how?
>>
>> Can it show a list of all devices?
>
> if I do a "lcpci", I get:
>
> 00:11.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (rev 18)
> 00:11.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (rev 18)
> 00:11.4 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1
Controller (rev 18)
>
> This is an older machine, so I am sure it has USB 1.1.
>
> George

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