You'll get something like this;
[denise] ~ > usbtree
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=usb-uhci/2p, 12M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-hcd/5p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=usb-ohci/2p, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=usb-ohci/3p, 12M
But with indented devices. The number at the end tells you the speed the
device is connected at. Actually, I have one device at work;
[antonia] ~/unix/htdocs > ./usbtree
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=usb-uhci/2p, 12M
|__ Port 1: Dev 3, If 0, Class=stor., Driver=usb-storage, 12M
This is a floppy drive (as you can see my laptop only has USB1.1 ports).
On Tue, 23 Sep 2003, Mr. Mailing List wrote:
> just check whether or not it says it's using ehci, or
> it will say something about usb 2.0?(i ask this
> because i don't have access to my linux machine at the
> moment, but am on an XP machine).
>
> thanks
>
>
> --- "Stephen J. Gowdy" <[EMAIL PROTECTED]>
> wrote:
> > THere is a script here that'll tell you;
> >
> > http://www.linux-usb.org/usbtree
> >
> > (this just scans /proc/bus/usb/devices but formats
> > in an easy way to see).
> >
> > On Tue, 23 Sep 2003, Mr. Mailing List wrote:
> >
> > > sorry, that was dumb of me, but how can I make
> > sure
> > > it's transferring at usb 2.0 speeds as opposed to
> > 1.1?
> > >
> > >
> > > --- "Stephen J. Gowdy" <[EMAIL PROTECTED]>
> > > wrote:
> > > > It says it is sdb.
> > > >
> > > > On Tue, 23 Sep 2003, Mr. Mailing List wrote:
> > > >
> > > > > scsi5 : SCSI emulation for USB Mass Storage
> > > > devices
> > > > > Vendor: Generic Model: STORAGE DEVICE
> > Rev:
> > > > 0119
> > > > > Type: Direct-Access
> > ANSI
> > > > SCSI
> > > > > revision: 02
> > > > > Attached scsi removable disk sdb at scsi5,
> > channel
> > > > 0,
> > > > > id 0, lun 0
> > > > > Attached scsi generic sg1 at scsi5, channel 0,
> > id
> > > > 0,
> > > > > lun 0, type 0
> > > > > WARNING: USB Mass Storage data integrity not
> > > > assured
> > > > > USB Mass Storage device found at 2
> > > > > usb 1-1.2: USB disconnect, address 22
> > > > >
> > > > > i used to use MFMTools for my usb 1.1 sandisk
> > > > reader,
> > > > > but after i plugged this one in, (kernel
> > > > 2.6test5),
> > > > > and tried to use it, it said there was no
> > /dev/sda
> > > > >
> > > > > any ideas about support for this?
> > > > >
> > > > >
> > > > > __________________________________
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> > > >
> > >
> >
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> > > > >
> > > >
> > > > --
> > > >
> > > >
> > >
> >
> /------------------------------------+-------------------------\
> > > > |Stephen J. Gowdy | SLAC,
> > > > MailStop 34, |
> > > > |http://www.slac.stanford.edu/~gowdy/ | 2575
> > Sand
> > > > Hill Road, |
> > > > |http://calendar.yahoo.com/gowdy | Menlo
> > Park
> > > > CA 94025, USA |
> > > > |EMail: [EMAIL PROTECTED] | Tel: +1
> > 650
> > > > 926 3144 |
> > > >
> > > >
> > >
> >
> \------------------------------------+-------------------------/
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> > > >
> > > >
> > >
> >
> -------------------------------------------------------
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> > --
> >
> >
> /------------------------------------+-------------------------\
> > |Stephen J. Gowdy | SLAC,
> > MailStop 34, |
> > |http://www.slac.stanford.edu/~gowdy/ | 2575 Sand
> > Hill Road, |
> > |http://calendar.yahoo.com/gowdy | Menlo Park
> > CA 94025, USA |
> > |EMail: [EMAIL PROTECTED] | Tel: +1 650
> > 926 3144 |
> >
> >
> \------------------------------------+-------------------------/
> >
> >
> >
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--
/------------------------------------+-------------------------\
|Stephen J. Gowdy | SLAC, MailStop 34, |
|http://www.slac.stanford.edu/~gowdy/ | 2575 Sand Hill Road, |
|http://calendar.yahoo.com/gowdy | Menlo Park CA 94025, USA |
|EMail: [EMAIL PROTECTED] | Tel: +1 650 926 3144 |
\------------------------------------+-------------------------/
-------------------------------------------------------
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Welcome to geek heaven.
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