Re: [PATCH v2] Pioneer devices: engage implicit feedback sync for playback

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Em Dom, 18 de abr de 2021 09:45, Olivia Mackintosh <livvy@xxxxxxx> escreveu:

> > As a blind shot: might the stall be avoided by passing the recently
> > introduced chip->playback_first flag?  The revised patch is below.
>
> This appears to fix the issue, thank you! I am curious as to why this is
> not required for Geraldo's DDJ-SR2.
>

Heh, sometimes I think Takashi Iwai is psychic ;-)

Just kidding, he's "just" very talented and very experienced. Anyway, the
DDJ-SR2 is originally a Serato controller. It still requires two MIDI SysEx
messages to unmute the RCA inputs - engaging "Serato Mode" in
marketing-speak.

My point is that Pioneer may be a little more compliant / a little less
deviant from the UAC2 standard when designing gear for use with third-party
software.


> My initial thought was that certain devices that restrict capture unless
> regular SysEx/Control URBs are sent may mean that Playback first support
> is required (e.g. 750, 850, 450). Please correct me if this intuition is
> incorrect.


> Olivia
>



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