[alsa-devel] A plea for help on mixer support for Fast Track Ultra (8R)

[Felix Homann]

Sorry for the mail formated patches!

Here's a single combined patch.

Regards,

Felix

Am 18.05.2011 17:19, schrieb Felix Homann:
> Hi,
>
> I need some help again by someone who's more familiar with Alsa's 
> inner working than I am. This might be you, Daniel ;-)
>
> I've attached a patch series that would add support for the mixer in 
> M-Audio's Fast Track Ultra (8R) devices.
>
> BUT, it will break others!
>
> It will break others in that mixer controls will show up multiple 
> times. The reason for this seems to be my ambitiuos calling of 
> snd_usb_create_mixer() for quirked devices in card.c. To circumvent 
> the problem of a control showing up multiple times, I check for 
> duplicates in add_unique_control_to_empty_mixer() and skip controls 
> already present.
>
> This doesn't work for devices which are not using 
> add_unique_control_to_empty_mixer(), in other words *all* devices not 
> using my messy patch...
>
> So, probably the best thing would be to have some kind of entry in 
> quirks-table.h to tell which device would need to be "mixerquirked" to 
> prevent other devices to be disturbed. How can this be done?
>
> I would highly appreciate anybody coming up with a proper solution.
>
> Kind regards,
>
> Felix
>
>
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