From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
To: Robin Gareus <robin@gareus.org>
Cc: tiwai@suse.de, alsa-devel@alsa-project.org, clemens@ladisch.de,
Damien Zammit <damien.zammit@gmail.com>,
ffado-devel@lists.sf.net
Subject: Re: [PATCH 11/11] ALSA: digi00x: apply double-oh-three algorism to multiplex PCM samples
Date: Fri, 20 Mar 2015 07:51:38 +0900 [thread overview]
Message-ID: <550B52FA.2060506@sakamocchi.jp> (raw)
In-Reply-To: <550B51BC.80506@sakamocchi.jp>
On Mar 20 2015 07:46, Takashi Sakamoto wrote:
> I can't understand what character devices you mention about. If you
> mention about ALSA PCM character devices (usually
> /dev/snd/pcmC%uD%d[p|c]), it's yes. In fact, one ALSA application can
> use ALSA PCM character device for one direction (playback/capture). So
> the access by any other applications causes -EBUSY. (here, I ignore
> alsa-lib's PCM direct mixing layer.)
I'll correct the 'ALSA application' with 'ALSA PCM application'. The
ALSA PCM application and ALSA Control application are different because
they access to different character devices and use different set of
ioctl(2) interfaces or different API set given by alsa-lib.
Regards
Takashi Sakamoto
next prev parent reply other threads:[~2015-03-19 22:51 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-15 16:00 [RFC][PATCH 00/11] digi00x: new driver for Digidesign 002/003 family Takashi Sakamoto
2015-03-15 16:00 ` [PATCH 01/11] ALSA: digi00x: add skelton for Digi 002/003 device driver Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 02/11] ALSA: digi00x: add streaming functionality Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 03/11] ALSA: digi00x: add proc node for clock status Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 04/11] ALSA: digi00x: add PCM functionality Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 05/11] ALSA: digi00x: add MIDI functionality Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 06/11] ALSA: digi00x: add hwdep interface Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 07/11] ALSA: digi00x: support unknown asynchronous message Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 08/11] ALSA: digi00x: support MIDI ports for device control Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 09/11] ALSA: firewire-lib: allows to implement external MIDI callback function Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 10/11] digi00x: improve MIDI capture/playback Takashi Sakamoto
2015-03-15 16:01 ` [PATCH 11/11] ALSA: digi00x: apply double-oh-three algorism to multiplex PCM samples Takashi Sakamoto
2015-03-16 11:39 ` Damien Zammit
2015-03-16 13:24 ` Takashi Sakamoto
2015-03-16 14:25 ` Robin Gareus
2015-03-16 16:25 ` Takashi Sakamoto
2015-03-16 17:13 ` Robin Gareus
2015-03-16 22:47 ` Takashi Sakamoto
2015-03-17 13:37 ` Robin Gareus
2015-03-17 13:49 ` Damien Zammit
2015-03-18 1:06 ` Takashi Sakamoto
2015-03-19 5:18 ` Damien Zammit
2015-03-19 13:59 ` Robin Gareus
2015-03-19 22:46 ` Takashi Sakamoto
2015-03-19 22:51 ` Takashi Sakamoto [this message]
2015-03-20 12:05 ` firewire mixer interface -- was " Robin Gareus
2015-03-20 13:00 ` Clemens Ladisch
2015-03-20 13:25 ` Takashi Sakamoto
2015-03-20 13:35 ` Takashi Iwai
2015-03-20 13:51 ` Takashi Sakamoto
2015-03-20 14:13 ` Takashi Iwai
2015-03-20 14:45 ` Takashi Sakamoto
2015-03-20 15:01 ` Takashi Iwai
2015-03-21 5:59 ` Damien Zammit
2015-03-22 2:55 ` Takashi Sakamoto
2015-03-22 5:56 ` [FFADO-devel] " Jonathan Woithe
2015-03-24 3:15 ` Robin Gareus
2015-03-20 13:55 ` Damien Zammit
2015-03-20 14:07 ` Clemens Ladisch
2015-03-22 6:11 ` [FFADO-devel] " Jonathan Woithe
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