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RE: [linux-usb] DevFS and USB...

To: "'Michael H. Warfield'" <mhw@xxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxxx, linux-usb@xxxxxxxx, devfs@xxxxxxxxxxx
Subject: RE: [linux-usb] DevFS and USB...
From: "Dunlap, Randy" <randy.dunlap@xxxxxxxxx>
Date: Wed, 15 Mar 2000 08:23:35 -0800
Sender: owner-devfs@xxxxxxxxxxx
Hi Mike,

I haven't looked at it and I don't recall seeing
any email from anyone else on the linux-usb
mailing list who has looked at DevFS.

I don't disagree with your (guesstimate) evaluation
of USB and DevFS.

> Anyone even know what the USB hierarchy in the
> DevFS namespace should look like?

I'm no expert (or even User yet) on DevFS.
My guess is simply /dev/usb/something.
Where would I look for some examples of other
devices/buses?
in linux/Documentation/filesystems/devfs/mk-devlinks
or ...................................../README ?

I'm interested in your feedback and help on this.

Thanks,
~Randy  [www.linux-usb.org]
___________________________________________________
|Randy Dunlap     Intel Corp., DAL    Sr. SW Engr.|
|randy.dunlap.at.intel.com            503-696-2055|
|NOTE:  Any views presented here are mine alone   |
|and may not represent the views of my employer.  |
|_________________________________________________|

> -----Original Message-----
> From: Michael H. Warfield [mailto:mhw@xxxxxxxxxxxx]
> Sent: Wednesday, March 15, 2000 6:37 AM
> To: linux-kernel@xxxxxxxxxxxxxxxx; linux-usb@xxxxxxxx; 
> devfs@xxxxxxxxxxx
> Cc: mhw@xxxxxxxxxxxx
> Subject: [linux-usb] DevFS and USB...
> 
> 
> Hello all,
> 
>       I just got involved in USB a few months ago (mostly for a camera
> memory interface) and am now in love with it.  The fact that 
> I can resolve
> a lot of interrupt conflicts and problems with running out of 
> interrupts
> just by moving stuff to USB is wonderful.  Skeptical at first, I'm
> now finding that it's solving a number of problems (like add on serial
> interfaces, parallel interfaces, multiple mice, and tablets).
> 
>       Considering that DevFS is now in the 2.3 kernels and is likely
> to be a fixture in the 2.4 kernels and USB is becoming quite popular,
> is anyone looking at DevFS support in USB?  Given the comings 
> and goings
> of devices and drivers and what not in USB, I would guess that DevFS
> support is going to involve more that a little bit of work (reasonably
> straight forward, just a lot of it).
> 
>       I just got done adding DevFS support to the Computone Multiport
> drivers and someone remarked to me that now that DevFS in in 
> the kernel
> sources we are now cleaning up some loose ends (referring to 
> the Computone
> Drivers as one such loose end).  Seems to me like USB is a 
> whole ball of
> loose ends for DevFS.  Anyone even know what the USB hierarchy in the
> DevFS namespace should look like?
> 
>       Mike
> -- 
>  Michael H. Warfield    |  (770) 985-6132   |  mhw@xxxxxxxxxxxx
>   (The Mad Wizard)      |  (770) 331-2437   |  
http://www.wittsend.com/mhw/
  NIC whois:  MHW9      |  An optimist believes we live in the best of all
 PGP Key: 0xDF1DD471    |  possible worlds.  A pessimist is sure of it!


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