> 
> >However the uncomfortable thing is that Windows does seem to be able to
> >handle this. and the Standard that the windows USB driver was written to
> >was surely the same one as the Linux one. Thus this card should also
> >break in windows ( which should make M-audion sit up and take notice,
> >even if they regard Linux with distain).
> >  
> >
> No, it's more likely that the Quattro driver for windows was written by 
> the hardware manufacturers wth a casual disregard for (or 
> misunderstandng of) the USB specs.
> 

Perhaps, but if your prognosis below is correct it is hard to see how
the Quatro manufacurer could get away with it without bringing down the
whole Windows USB subsystem. In the Linux case it is NOT the driver
(snd-usb-audio) which is causing the "trouble", it is apparently the core
usb bus driver out of fear that the quatro could destabilize the whole
usb subsystem. While it is perfectly good for the usb subsystem to
protect itself against such destabilisation, it is not clear to me
(because of immense ignorance of usb or the snd-usb-audio driver) that
it could not protect itself in ways that would allow the audio driver to
still support the card. That makes it sound like the driver is still
fragile, and needs protection against anything which could ever possibly
go wrong, rather than against badly written drivers.

> >  
> >
> It's immaterial which is worse.  An off-by-one error could be entirely 
> harmless in this context or it could be catastropic.  The inability to 
> acces the wrongly numbered alt device could be merely a question of 
> "fixing" the Quattro in it's USB driver or it could be necessary to 
> break the whole USB subsystem to support this one device.  Someone with 
> the time (and preferably Quattro) would have to look into exaclty what 
> goes on in the driver.
> 
> jch
> 
> 

-- 
William G. Unruh   |  Canadian Institute for|     Tel: +1(604)822-3273
Physics&Astronomy  |     Advanced Research  |     Fax: +1(604)822-5324
UBC, Vancouver,BC  |   Program in Cosmology |     [EMAIL PROTECTED]
Canada V6T 1Z1     |      and Gravity       |  www.theory.physics.ubc.ca/


-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
Alsa-user mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/alsa-user

Reply via email to