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From: Geraldo Nascimento <geraldogabriel@gmail.com>
To: Olivia Mackintosh <livvy@base.nu>
Cc: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org
Subject: Re: [PATCH v2] Pioneer devices: engage implicit feedback sync for playback
Date: Sun, 18 Apr 2021 11:16:56 -0300	[thread overview]
Message-ID: <CAEsQvctoF1MeGLyUiPZpfRC50kMY+8nnQ12OphPO8NvMUFj_hQ@mail.gmail.com> (raw)
In-Reply-To: <20210418124301.scwvjqxwanlarko6@base.nu>

Em Dom, 18 de abr de 2021 09:45, Olivia Mackintosh <livvy@base.nu> 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
>

  reply	other threads:[~2021-04-18 14:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-05 13:49 [PATCH v2] Pioneer devices: engage implicit feedback sync for playback Geraldo
2021-04-05 14:16 ` Geraldo
2021-04-06 11:48 ` Takashi Iwai
2021-04-06 13:44   ` Geraldo
2021-04-09 11:07 ` Olivia Mackintosh
2021-04-09 17:31   ` Geraldo Nascimento
2021-04-16 16:11   ` Takashi Iwai
2021-04-17 22:26     ` Olivia Mackintosh
2021-04-18  0:48       ` Geraldo Nascimento
2021-04-18  7:43       ` Takashi Iwai
2021-04-18 12:43         ` Olivia Mackintosh
2021-04-18 14:16           ` Geraldo Nascimento [this message]
2021-04-19  7:15             ` Takashi Iwai

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