Re: [PATCH 2/5] ALSA: snd_usb_caiaq: give better shortname

[Daniel Mack <daniel@caiaq.de>]

On Tue, Jun 02, 2009 at 01:46:48AM +0200, Takashi Iwai wrote:
> > > Give the card an 'id' name which will prevent ALSA from calling
> > > choose_default_name(). This implementation only took the last part of a
> > > name containing whitespaces which for example caused 'Audio 4 DJ' to be
> > > shortened to 'DJ', which was not very descriptive.
> > >
> > > The implementation now takes the short name and removes all whitespaces
> > > from it which is much nicer.
> > 
> > Unfortunately, this code does not handle id collisions for multiple cards. 
> 
> Moreover, the id can be passed via a module option.  Thus overriding
> the id itself is no good idea.

So what's your suggestion to fix the behaviour I was describing? Maybe a
combination of Jaroslav's collision detection together with a logic that
does not touch the id in case it was passed as module option?

I'm afraid touching choose_default_name() will cause a lot of breakage
for users as their card IDs will suddenly change and former '-D hw:xxx'
syntax won't work anymore.

Daniel