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From: Jonathan Woithe <jwoithe@just42.net>
To: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: alsa-devel@alsa-project.org,
	linux1394-devel@lists.sourceforge.net, ffado-devel@lists.sf.net
Subject: Re: [FFADO-devel] [RFC][PATCH 00/13] alsa-tools: libhinawa for control applications of FireWire devices
Date: Tue, 27 Jan 2015 09:35:46 +1030	[thread overview]
Message-ID: <20150126230546.GF6483@marvin.atrad.com.au> (raw)
In-Reply-To: <1422185674-16431-1-git-send-email-o-takashi@sakamocchi.jp>

Hi Takashi S

On Sun, Jan 25, 2015 at 08:34:21PM +0900, Takashi Sakamoto wrote:
> This is RFC for a new library into alsa-tools.
> 
> ALSA in Linux 3.16 or later extends a support for FireWire sound devices.
> Currently ALSA drivers supports streaming functionality only, while
> most of these devices require software implementation to control its
> internal DSP. The way to achieve this is to transfer byte sequence to
> the unit and wait byte sequence which the unit transfers if required.

By way of clarifying the intent here, this library seems to exist to funnel
arbitary async transactions through the alsa kernel module.  This covers the
case whereby the streaming component (in the kernel) influences the way
these commands are carried out, or when an ARM handler (which by definition
must be a centralised resource) forms an integral part of the data exchange. 
Is this more or less correct?

Regards
  jonathan

  parent reply	other threads:[~2015-01-26 23:05 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-25 11:34 [RFC][PATCH 00/13] alsa-tools: libhinawa for control applications of FireWire devices Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 01/13] libhinawa: add build definitions Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 02/13] libhinawa: add hinawa context Takashi Sakamoto
2015-01-27 15:35   ` Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 03/13] libhinawa: support GTK-Doc to generate references Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 04/13] libhinawa: add 'fw_unit' object as a listener for FireWire unit Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 05/13] libhinawa: support GObject Introspection for language bindings Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 06/13] libhinawa: add 'fw_resp' object as a responder for FireWire transaction Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 07/13] libhinawa: add 'fw_req' object as requester " Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 08/13] libhinawa: add 'fw_fcp' object as a helper of FCP transaction Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 09/13] libhinawa: add 'snd_unit' object as a listener for ALSA FireWire devices Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 10/13] libhinawa: add 'snd_dice' object as a helper for Dice notification Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 11/13] libhinawa: add 'snd_efw' object as a helper for EFW transaction Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 12/13] libhinawa: add 'unit_query' as a query for ALSA FireWire devices Takashi Sakamoto
2015-01-25 11:34 ` [PATCH 13/13] libhinawa: add sample scripts Takashi Sakamoto
2015-01-25 12:14   ` [alsa-devel] " Alexander E. Patrakov
2015-01-27 15:09     ` Takashi Sakamoto
2015-01-27 15:16       ` Alexander E. Patrakov
2015-01-26 23:05 ` Jonathan Woithe [this message]
2015-03-20  9:28 ` [FFADO-devel] [RFC][PATCH 00/13] alsa-tools: libhinawa for control applications of FireWire devices Damien Zammit
2015-03-20 10:09   ` [alsa-devel] " Clemens Ladisch

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