Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Patrick Shirkey]

iriXx wrote:
> hi Patrick,
> 

I have forwarded this to the devel list. To subscribe please visit this 
link.

http://lists.sourceforge.net/lists/listinfo/alsa-devel

> thanks so much... this will improve things wonderfully not just for the 
> Evolution but for my quattro as well... i had assumed that in rc3 the 
> midi interface for the quattro wasnt implemented.... i shall give cvs a 
> try straight away, as this is part of a review for a uk magazine...
> 
> could you give me the address for subscribing to alsa-devel? i would be 
> happy to test and report back...
> 
> the problems i've had with modules.conf are in adding support for the 
> two cards - which of course wont be necessary with the cvs version...
> i shall ask again on alsa-devel if i have any more problems...
> 

There are some changes that need to be made regarding the modules.conf 
file and the options for the driver. Specifically all snd_xxx references 
have been changed to just xxx. Ie remove the snd_ prefix. This has been 
done to ensure the alsa modules options are inline with the Kernel 
standard. NB this is completely seperate from the module name which is 
snd-xxx. That has not been changed.

Interestingly enough we are in the process of debating how and what to 
do about getting more articles published on Linux Audio. If you want any 
  second opinions on the article before it is published I am happy to 
have a look at it.

Please let us know when you publish it too.

Also could you send your modules.conf file in the next post so we can 
see what you are doing to load the modules.

-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.djcj.org - The Linux Audio Users guide
========================================

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kindof like does anyone remember like get_symbol
and put_symbol I think we used to have..."
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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[m]

Patrick Shirkey wrote:

> There are some changes that need to be made regarding the modules.conf 
> file and the options for the driver. Specifically all snd_xxx references 
> have been changed to just xxx. Ie remove the snd_ prefix. This has been 
> done to ensure the alsa modules options are inline with the Kernel 
> standard. NB this is completely seperate from the module name which is 
> snd-xxx. That has not been changed.
> 

hi Patrick, thanks again,

my modules.conf for rc3 was as follows:

# ALSA portion
 alias char-major-116 snd
 alias snd-card-0 snd-usb-audio

## oss/Free portion
 alias char-major-14 soundcore
 alias sound-slot-0 snd-card-0

# card 1
 alias sound-service-0-0 snd-mixer-oss
 alias sound-service-0-1 snd-seq-oss
 alias sound-service-0-3 snd-pcm-oss
 alias sound-service-0-8 snd-seq-oss
 alias sound-service-0-12 snd-pcm-oss
 alias sound-slot-1 audio

so i assume i change only need to change the second line to

alias snd-card-0 usb-audio

or are there more changes necessary? should snd-card-0 stay the same?

> Interestingly enough we are in the process of debating how and what to 
> do about getting more articles published on Linux Audio. If you want any 
>   second opinions on the article before it is published I am happy to 
> have a look at it.
> 
> Please let us know when you publish it too.

certainly - although its not me that is writing the article - i'm
testing the UC16 for a friend, who is writing for Camcorder User
magazine in the UK... we are planning to review the Edirol usb devices
as well, and probably the quattro... so hopefully i will be able to
include more detailed GNU/Linux audio coverage soon.. i will suggest a
few apps... anyone know of an app which would be particularly useful for
live work with a UC-16?... 

i am actually a writer myself too, i'm currently working on a book which
will be an expose of 'digital rights management' technology, strongly
supporting GNU/Linux audio.... you can read more at
http://www.copyleftmedia.org.uk . its not a technical book on audio,
more a musician's answer to Naomi Klein's "No Logo"... to be published
by GNU Press, provisional date Sept. 2003... watch this space...
 
best,

m~
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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Clemens Ladisch]

"m" wrote:
> Patrick Shirkey wrote:
>
> > There are some changes that need to be made regarding the modules.conf
> > file and the options for the driver. Specifically all snd_xxx references
> > have been changed to just xxx. Ie remove the snd_ prefix. This has been
> > done to ensure the alsa modules options are inline with the Kernel
> > standard. NB this is completely seperate from the module name which is
> > snd-xxx. That has not been changed.
> >
>
> hi Patrick, thanks again,
>
> my modules.conf for rc3 was as follows:
>
> # ALSA portion
>  alias char-major-116 snd
>  alias snd-card-0 snd-usb-audio
>
> ## oss/Free portion
>  alias char-major-14 soundcore
>  alias sound-slot-0 snd-card-0
>
> # card 1
>  alias sound-service-0-0 snd-mixer-oss
>  alias sound-service-0-1 snd-seq-oss
>  alias sound-service-0-3 snd-pcm-oss
>  alias sound-service-0-8 snd-seq-oss
>  alias sound-service-0-12 snd-pcm-oss
>  alias sound-slot-1 audio
>
> so i assume i change only need to change the second line to
>
> alias snd-card-0 usb-audio

No, this is a module name, which didn't change. The change is for module
options, but you're not using any, so the renaming doesn't affect you.
(There is a subtle difference between snd_xxx and snd-xxx.)

However, the alias for sound-slot-1 is wrong, "audio" is the name of
the OSS driver. Make that line
	alias sound-slot-1 snd-card-1
And you need to say which driver to use for snd-card-1. For the UC16 with
0.9.0rc3, it would be
	alias snd-card-1 snd-usb-midi
For 0.9.0rc4, it would be
	alias snd-card-1 snd-usb-audio

And when you have more than one card, you should tell the driver at which
index they should load.
If you have 0.9.0rc3, add these lines:
	options snd-usb-audio snd_index=0
	options snd-usb-midi snd_index=1
If you have 0.9.0rc4, add this line instead:
	options snd-usb-audio index=0,1 pid=0x2001


HTH
Clemens



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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[m]

hi, and thanks,

> However, the alias for sound-slot-1 is wrong, "audio" is the name of
> the OSS driver. Make that line
> 	alias sound-slot-1 snd-card-1
> And you need to say which driver to use for snd-card-1. For the UC16 with
> 0.9.0rc3, it would be
> 	alias snd-card-1 snd-usb-midi
> For 0.9.0rc4, it would be
> 	alias snd-card-1 snd-usb-audio

thats great, thanks... i have 0.9.0rc4

the only thing i'm confused on is that i've now got 2 entries that say

alias sound-slot-0 snd-card-0
alias snd-card-0 snd-usb-audio

alias sound-slot-1 snd-card-1
alias snd-card-1 snd-usb-audio

im wondering if this is actually necessary when i've got only one USB
port - if usb midi now uses the snd-usb-audio driver, then theoretically
i only actually need to put in one card entry, the same driver should
work for both?...
> 
> And when you have more than one card, you should tell the driver at which
> index they should load.
> If you have 0.9.0rc3, add these lines:
> 	options snd-usb-audio snd_index=0
> 	options snd-usb-midi snd_index=1
> If you have 0.9.0rc4, add this line instead:
> 	options snd-usb-audio index=0,1 pid=0x2001

thats great, thanks so much

m~
-- 
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www.iriXx.org

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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Clemens Ladisch]

"m" wrote:
> > 	alias sound-slot-1 snd-card-1
> > 	alias snd-card-1 snd-usb-audio
>
> the only thing i'm confused on is that i've now got 2 entries that say
>
> alias sound-slot-0 snd-card-0
> alias snd-card-0 snd-usb-audio
>
> alias sound-slot-1 snd-card-1
> alias snd-card-1 snd-usb-audio
>
> im wondering if this is actually necessary when i've got only one USB
> port - if usb midi now uses the snd-usb-audio driver, then theoretically
> i only actually need to put in one card entry, the same driver should
> work for both?...

I assumed that you wanted to use a Quattro and a UC16 together. In this
case, you need one entry for each card, although they're handled by the
same driver.

The snd-card-x entries are used for autoloading: when you try to access
PCM device hw:x,y and this device doesn't yet exist, ALSA knowns that it
should load the driver specified by snd-card-x.


HTH
Clemens



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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[m]

On Wed, 2002-10-23 at 14:00, Clemens Ladisch wrote:

> I assumed that you wanted to use a Quattro and a UC16 together. In this
> case, you need one entry for each card, although they're handled by the
> same driver.
> 
> The snd-card-x entries are used for autoloading: when you try to access
> PCM device hw:x,y and this device doesn't yet exist, ALSA knowns that it
> should load the driver specified by snd-card-x.

thanks, that helps a lot... as you can guess i'm new-ish to working with
alsa although not so new to linux sound...

bw
m
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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Martin Langer]

On Wed, Oct 23, 2002 at 11:50:37AM +0200, Clemens Ladisch wrote:
> And you need to say which driver to use for snd-card-1. For the UC16 with
> 0.9.0rc3, it would be
> 	alias snd-card-1 snd-usb-midi
> For 0.9.0rc4, it would be
> 	alias snd-card-1 snd-usb-audio
> 


It would be better to add this module name change to the rc4 announce lines on
www.alsa-project.org !


martin




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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Jaroslav Kysela]

On Wed, 23 Oct 2002, Martin Langer wrote:

> On Wed, Oct 23, 2002 at 11:50:37AM +0200, Clemens Ladisch wrote:
> > And you need to say which driver to use for snd-card-1. For the UC16 with
> > 0.9.0rc3, it would be
> > 	alias snd-card-1 snd-usb-midi
> > For 0.9.0rc4, it would be
> > 	alias snd-card-1 snd-usb-audio
> > 
> 
> 
> It would be better to add this module name change to the rc4 announce lines on
> www.alsa-project.org !

It's not possible to comment changes for all drivers in the news 
section...

						Jaroslav

-----
Jaroslav Kysela <perex@suse.cz>
Linux Kernel Sound Maintainer
ALSA Project  http://www.alsa-project.org
SuSE Linux    http://www.suse.com



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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Takashi Iwai]

At Wed, 23 Oct 2002 13:02:28 +0200 (CEST),
Jaroslav wrote:
> 
> On Wed, 23 Oct 2002, Martin Langer wrote:
> 
> > On Wed, Oct 23, 2002 at 11:50:37AM +0200, Clemens Ladisch wrote:
> > > And you need to say which driver to use for snd-card-1. For the UC16 with
> > > 0.9.0rc3, it would be
> > > 	alias snd-card-1 snd-usb-midi
> > > For 0.9.0rc4, it would be
> > > 	alias snd-card-1 snd-usb-audio
> > > 
> > 
> > 
> > It would be better to add this module name change to the rc4 announce lines on
> > www.alsa-project.org !
> 
> It's not possible to comment changes for all drivers in the news 
> section...

but the change of driver names is actually very important for users,
and there are only few:

	snd-via686, snd-via8233 ==> snd-via82xx
	snd-usb-midi ==> snd-usb-audio


Takashi


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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Martin Langer]

On Wed, Oct 23, 2002 at 01:27:23PM +0200, Takashi Iwai wrote:
> At Wed, 23 Oct 2002 13:02:28 +0200 (CEST),
> Jaroslav wrote:
> > 
> > On Wed, 23 Oct 2002, Martin Langer wrote:
> > 
> > > On Wed, Oct 23, 2002 at 11:50:37AM +0200, Clemens Ladisch wrote:
> > > > And you need to say which driver to use for snd-card-1. For the UC16 with
> > > > 0.9.0rc3, it would be
> > > > 	alias snd-card-1 snd-usb-midi
> > > > For 0.9.0rc4, it would be
> > > > 	alias snd-card-1 snd-usb-audio
> > > > 
> > > 
> > > 
> > > It would be better to add this module name change to the rc4 announce lines on
> > > www.alsa-project.org !
> > 
> > It's not possible to comment changes for all drivers in the news 
> > section...
> 
> but the change of driver names is actually very important for users,
> and there are only few:
> 
> 	snd-via686, snd-via8233 ==> snd-via82xx
> 	snd-usb-midi ==> snd-usb-audio

What about a linked changelog or announce file?

martin

> 
> 
> Takashi
> 
> 

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Re: Re: [linux-audio-user] Evolution UC16 problems, modules.conf for usb-midi and usb-audio together

[Patrick Shirkey]

Takashi Iwai wrote:
> At Wed, 23 Oct 2002 13:02:28 +0200 (CEST),
> Jaroslav wrote:
> 
>>On Wed, 23 Oct 2002, Martin Langer wrote:
>>
>>
>>>On Wed, Oct 23, 2002 at 11:50:37AM +0200, Clemens Ladisch wrote:
>>>
>>>>And you need to say which driver to use for snd-card-1. For the UC16 with
>>>>0.9.0rc3, it would be
>>>>	alias snd-card-1 snd-usb-midi
>>>>For 0.9.0rc4, it would be
>>>>	alias snd-card-1 snd-usb-audio
>>>>
>>>
>>>
>>>It would be better to add this module name change to the rc4 announce lines on
>>>www.alsa-project.org !
>>
>>It's not possible to comment changes for all drivers in the news 
>>section...
> 
> 
> but the change of driver names is actually very important for users,
> and there are only few:
> 
> 	snd-via686, snd-via8233 ==> snd-via82xx
> 	snd-usb-midi ==> snd-usb-audio
> 

Well I have already updated the online docs. With specifics references 
in the notes for these drivers.

It wouldn't hurt to add a note to the main page too though. It is 
profeesional courtesy.


-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.djcj.org - The Linux Audio Users guide
========================================

"Um...symbol_get and symbol_put... They're
kindof like does anyone remember like get_symbol
and put_symbol I think we used to have..."
- Rusty Russell in his talk on the module subsystem



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