Re: [SLE] USB 2. backward compatible but how

From: Patrick Shanahan (paka_at_wahoo.no-ip.org)
Date: 01/13/04

  • Next message: Albert: "[SLE] deleting libsmbclient(kdenetwork3-lan,kdebase3-samba)" 
    Date: Tue, 13 Jan 2004 13:09:44 -0500
To: SLE <suse-linux-e@suse.com>

    * Bruce Marshall <bmarsh@bmarsh.com> [01-13-04 11:52]:
    > On Tue January 13 2004 11:12 am, Patrick Shanahan wrote:
    > > * Constant Brouerius van Nidek <constant@indo.net.id> [01-13-04 11:01]:
    > > > Think this is one of those days on which I have problems to capture
    > > > ideas. I have heard that USB 2.0 is backward compatible. Does that
    > > > mean that I can run e.g. a version 2.0 cardreader on my version 1
    > > > on board USB connection?
    > >
    > > Well, my usb 2.0 card reader will work on the usb 1 ports but at usb
    > > 1 speeds. Backward compatible *usually* means what you have stated
    > > but at the lowest performance rating in the chain.
    >
    > But I assume that what he described would be 'forward' compatible...
    > which would not be the case. Yes, you could run a 1.0 device on a 2.0
    > USB port, but I would doubt highly if you could run a 2.0 device on a
    > 1.0 USB port.

    This is quite possible. I have limited resources available to check, but
    I have a usb2 cardreader that works on a usb1 port. That does not mean
    that all instances will be the same, unfortunately. 

    -- 
Patrick Shanahan                        Registered Linux User #207535
http://wahoo.no-ip.org                        @ http://counter.li.org
-- 
Check the headers for your unsubscription address
For additional commands send e-mail to suse-linux-e-help@suse.com
Also check the archives at http://lists.suse.com
Please read the FAQs: suse-linux-e-faq@suse.com
  • Next message: Albert: "[SLE] deleting libsmbclient(kdenetwork3-lan,kdebase3-samba)"