[TAG] Talkback:124/smith.html

[Benjamin A. Okopnik]

----- Forwarded message from Richard Neill <rn214 at hermes.cam.ac.uk> -----

Date: Sun, 05 Mar 2006 21:02:41 +0000
From: Richard Neill <rn214 at hermes.cam.ac.uk>
To: TAG <tag at lists.linuxgazette.net>
To: Bob Smith <bsmith at linuxtoys.org>
CC: "Benjamin A. Okopnik" <ben at linuxgazette.net>
Subject: Re: [TAG] Talkback:124/smith.html

Dear Bob,

I shall be interested to see how it goes, especially if you can make the 
resulting system stable. Also, I wonder whether you can use udev to 
distinguish between 6 different copies of a nominally identical item? 
Some may let you use a serial number. Using the BUS id would be cheating 
- one ought to be able to plug it together randomly and have it work!

Best wishes,

Richard

P.S. An interesting challenge would be to get separate audio channels 
working (eg a 5.1 channel motherboard could give 2 1/2 stereo outputs!)
Or you could use alsa to multiplex all the users together so that 
everyone can access the speakers (and trust the users to resolve conflicts).



Bob Smith wrote:
>Richard
>
>   Picture Bob smacking his head and saying "Doh!"
>You are right and the next article, the one where
>I get it *all* working, will use udev and symlinks.
>Using /dev/input was not too bad since the USB bus
>is enumerated the same way on each power up.  I
>only had to move things around once right after
>the initial set up.
>
>thanks
>Bob Smith
>
>
>>On Sat, Mar 04, 2006 at 05:23:16PM +0000, Richard Neill wrote:
>>
>>>Re multi-seat computers, I think you are heading for much pain to use 
>>>the /dev/input/X   devices directly!
>>>If USB devices are powered on in a different order, these will move 
>>>around!
>>>
>>>Use Udev rules, and symlinks....
>
>

-- 
rn214 at hermes.cam.ac.uk  **  http://www.richardneill.org
Richard Neill, Trinity College, Cambridge, CB21TQ, U.K.

----- End forwarded message -----


* Ben Okopnik * Editor-in-Chief, Linux Gazette * http://linuxgazette.net *