Re: Implicit feedback on BOSS GT-1, the saga continues...

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Em Qui, 8 de abr de 2021 02:36, Lucas <jaffa225man@xxxxxxxxx> escreveu:

> Well, I just got back from testing Mike's suggestion of setting the Roland
> Boutique D-05 as a playback quirk, disabling its capture quirk, and setting
> that endpoint test section to always be skipped.  Sure, enough, the D-05's
> playback is now perfectly crystal clear without the crackles associated
> with an LP record.
>

I know that feeling and it is wonderful.


> This is just a guess until I recompile again, but my capture from the D-05
> reports a read error, seemingly just as the vanilla mainline kernel does,
> and I think it's because I disabled its capture quirk line.  So, it seems
> to me that the D-05 needs both quirk table entries, whether or not the GT-1
> does.
>

Looking back to Mike's 2019 post
https://mailman.alsa-project.org/pipermail/alsa-devel/2020-January/161733.html
we see the output of lsusb -v for the BOSS GT-1 and clearly we see that
0x8e is the implicit feedback sync EP, at least if we are to trust lsusb
-v. Therefore Mike is on the right track that the GT-1 implicit feedback
sync is for playback only.

>



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