[linux-audio-user] M-Audio Quattro and 2.6

[metafor at gmx.net]

Thanks for the info:

I'll try to patch my system. Hope it works.

marc

Tim Blechmann wrote:

>there are two issues with the quattro:
>
>the 2.6 issue: (haven't tried it yet)
>  
>
>>	Date: Tue, 16 Mar 2004 10:12:45 -0500 (EST)
>>	From: Alan Stern <stern at rowland.harvard.edu>
>>	Cc: USB development list <linux-usb-devel at lists.sourceforge.net>
>>	Subject: Re: invalid alternate setting
>>	
>>	Here's an announcement for people interested in using USB
>>	devices with invalid configuration descriptors.  I've completed
>>	a series of patches that will make the system accept such
>>	devices, to the extent that it can.  You will have to apply all
>>	three patches in sequence; each is a prerequisite for the next. 
>>	They should go on top of a 2.6.4 system.  The patches are:
>>	
>>	as221: 
>>	http://marc.theaimsgroup.com/?l=linux-usb-devel&m=107937025411336&w=2
>>	as222: 
>>	http://marc.theaimsgroup.com/?l=linux-usb-devel&m=107937021027794&w=2
>>	as223: 
>>	http://marc.theaimsgroup.com/?l=linux-usb-devel&m=107937029404286&w=2
>>	
>>	The first two patches just improve the error logging; you might
>>	like to see what happens when you plug in your devices.  The
>>	third is the one that changes the kernel's behavior.  Please let
>>	me know if the patches don't work as expected.
>>	
>>	Not all the USB drivers will work properly with that third patch
>>	installed, so be warned.  The USB audio class driver should be
>>	okay.  I have no idea what will happen with the ALSA USB
>>	audio/MIDI driver; it hasn't been updated yet.
>>	
>>	Alan Stern
>>    
>>
>
>  
>
>>You will find a dirty fix for the 2.6 issue. The alsa people are
>>trying to get the noise issue fixed. See bug #48 on alsa bugtrack.
>>    
>>
>i'm curious about this one ... i experienced it for quite some time ...
>using the patch provided at the alsa bugtrack it seems to improve, but
>it's not completely solved, yet ... at least not on my machine ...
>
>cheers...
>
> Tim                          mailto:TimBlechmann at gmx.de
>                              ICQ: 96771783
>--
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>
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