From: Clemens Ladisch <clemens-P6GI/4k7KOmELgA04lAiVw@public.gmane.org>
To: Felipe Tonello <eu-NLnRV5p3vwDxYxTyqlRmvgC/G2K4zDHf@public.gmane.org>
Cc: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org,
linux-bluetooth-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [alsa-devel] [RFC] MIDI over Bluetooth Low Energy
Date: Thu, 1 Oct 2015 13:53:38 +0200 [thread overview]
Message-ID: <560D1EC2.8010603@ladisch.de> (raw)
In-Reply-To: <CAGrhNMxmtt-5kZO-6me2sPQYeQ5wcpvonKqzbx7CEB5=RJ724Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Felipe Tonello wrote:
> On Thu, Oct 1, 2015 at 12:27 PM, Clemens Ladisch <clemens-P6GI/4k7KOmELgA04lAiVw@public.gmane.org> wrote:
>> Felipe Tonello wrote:
>>> I am planning to start the support of MIDI BLE profile[1].
>>>
>>> I suggest two main goals:
>>> * To be transparent to applications, i.e., use rawmidi and sequencer
>>> ALSA interfaces to interact.
>>> * To support peripheral and central BLE roles.
>>>
>>> My question is: what is the best way possible of doing it?
>>
>> Just write a (user-space) sequencer client.
>
> But this will limit to seq interface only. It will not be available
> via rawmidi interface, right?
Yes. And why would this be a problem?
>>> They all have the problem of context switching between bluez plugin
>>> and alsa midi driver.
>>
>> Why would context switches be a problem?
>
> It is just too much travelling around.
It hasn't been a problem with any other MIDI application.
Regards,
Clemens
WARNING: multiple messages have this Message-ID (diff)
From: Clemens Ladisch <clemens@ladisch.de>
To: Felipe Tonello <eu@felipetonello.com>
Cc: alsa-devel@alsa-project.org, linux-bluetooth@vger.kernel.org
Subject: Re: [alsa-devel] [RFC] MIDI over Bluetooth Low Energy
Date: Thu, 1 Oct 2015 13:53:38 +0200 [thread overview]
Message-ID: <560D1EC2.8010603@ladisch.de> (raw)
In-Reply-To: <CAGrhNMxmtt-5kZO-6me2sPQYeQ5wcpvonKqzbx7CEB5=RJ724Q@mail.gmail.com>
Felipe Tonello wrote:
> On Thu, Oct 1, 2015 at 12:27 PM, Clemens Ladisch <clemens@ladisch.de> wrote:
>> Felipe Tonello wrote:
>>> I am planning to start the support of MIDI BLE profile[1].
>>>
>>> I suggest two main goals:
>>> * To be transparent to applications, i.e., use rawmidi and sequencer
>>> ALSA interfaces to interact.
>>> * To support peripheral and central BLE roles.
>>>
>>> My question is: what is the best way possible of doing it?
>>
>> Just write a (user-space) sequencer client.
>
> But this will limit to seq interface only. It will not be available
> via rawmidi interface, right?
Yes. And why would this be a problem?
>>> They all have the problem of context switching between bluez plugin
>>> and alsa midi driver.
>>
>> Why would context switches be a problem?
>
> It is just too much travelling around.
It hasn't been a problem with any other MIDI application.
Regards,
Clemens
next prev parent reply other threads:[~2015-10-01 11:53 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-01 8:41 [RFC] MIDI over Bluetooth Low Energy Felipe Tonello
2015-10-01 8:41 ` Felipe Tonello
[not found] ` <CAGrhNMyY7rJVZ35p5P5FnGvJPYZuKndau1vNY5k+GCHHYzZtzQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-01 9:34 ` Luiz Augusto von Dentz
2015-10-01 9:34 ` Luiz Augusto von Dentz
[not found] ` <CABBYNZ+iR-LXvMDkGiOkh8+X_=PWjrbGs3kveYFMo1UdhHVaNA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-01 10:17 ` Felipe Tonello
2015-10-01 10:17 ` Felipe Tonello
[not found] ` <CAGrhNMwpx9Q4Usb75jWofWpLpUxJOd6FsckRT=O4Uj8KBtqayA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-01 11:05 ` Luiz Augusto von Dentz
2015-10-01 11:05 ` Luiz Augusto von Dentz
[not found] ` <CABBYNZ+D5KbW7b2_F0fw9C=YvMNyVdaN=sLuNj5v0O-Zs6XSVg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-01 11:26 ` Felipe Tonello
2015-10-01 11:26 ` Felipe Tonello
2015-10-01 11:16 ` Marcel Holtmann
2015-10-01 11:16 ` Marcel Holtmann
[not found] ` <BECBD8C9-C49D-410C-BE11-CA1A52839EED-kz+m5ild9QBg9hUCZPvPmw@public.gmane.org>
2015-10-01 11:29 ` Felipe Tonello
2015-10-01 11:29 ` Felipe Tonello
2015-10-01 11:27 ` Clemens Ladisch
2015-10-01 11:27 ` [alsa-devel] " Clemens Ladisch
[not found] ` <560D1893.6040509-P6GI/4k7KOmELgA04lAiVw@public.gmane.org>
2015-10-01 11:35 ` Felipe Tonello
2015-10-01 11:35 ` Felipe Tonello
[not found] ` <CAGrhNMxmtt-5kZO-6me2sPQYeQ5wcpvonKqzbx7CEB5=RJ724Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-01 11:46 ` Takashi Iwai
2015-10-01 11:46 ` Takashi Iwai
[not found] ` <s5hfv1uvmjq.wl-tiwai-l3A5Bk7waGM@public.gmane.org>
2015-10-01 12:04 ` Felipe Tonello
2015-10-01 12:04 ` Felipe Tonello
[not found] ` <CAGrhNMxUsUXBmYFLo4Bq=Mx1qdUZC1Zv7c4pXb+F8D8adYTvcg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-01 14:15 ` Luiz Augusto von Dentz
2015-10-01 14:15 ` Luiz Augusto von Dentz
[not found] ` <CABBYNZ+g9+QBEOxO8ZGnQbBva+JxX=WkQAvBst=YMM7zHdz1hw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-01 14:46 ` Felipe Tonello
2015-10-01 14:46 ` Felipe Tonello
[not found] ` <CAGrhNMw1wZaTXFAp-56ujr_YH4wxHtnCWRZdThH39y-WLY26iA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-03 17:07 ` Marcel Holtmann
2015-10-03 17:07 ` Marcel Holtmann
2015-10-01 11:53 ` Clemens Ladisch [this message]
2015-10-01 11:53 ` Clemens Ladisch
2015-10-01 11:59 ` Felipe Tonello
2015-10-01 11:59 ` [alsa-devel] " Felipe Tonello
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