Mike O'Connor wrote:
> luth-astro{at}earthlink.net wrote:
> 
> 
>>I've heard USB praised because you can daisy chain it.
>>
>>I've also heard that you must have a separate controller and separate
>>driver for each USB device.
>>
>>Are these two statements compatible?  Is either right?
>>
>>Jim L, via eCS 1.14 version of OS/2
>> 
>>
> 
> 
> Hi Jim,
> Maybe and no.
> You don't need a separate controller for each device! Only for each port!
> As with Firewire, you can only daisy-chain devices when you have two 
> ports on a device, one a pass-through!
> 

Or you use a USB hub. While not strictly daisy-chaining this has much 
the same effect of allowing several devices to connect via a single port 
on the PC. You can plug a hub into a hub as well, I believe. I have a 
scanner, external hard disc, printer and a compact flash card reader 
connected to a single port via a hub. I think the theoretical limit is 
127 devices per port, but in practice it's much lower.

You need drivers for the connected devices as well as the controllers, 
of course.

Regards

Sid Gale


------------------------ Yahoo! Groups Sponsor --------------------~--> 
Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar.
Now with Pop-Up Blocker. Get it for free!
http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/9rHolB/TM
--------------------------------------------------------------------~-> 

 
Yahoo! Groups Links

 To visit your group on the web, go to:
    http://groups.yahoo.com/group/os2hardware/

 To unsubscribe from this group, send an email to:
    os2hardware-unsubscribe{at}yahoogroups.com

 Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/
 




---