From: Martin Koegler <martin.koegler@chello.at>
To: Takashi Iwai <tiwai@suse.de>
Cc: alsa-devel@alsa-project.org, Clemens Ladisch <clemens@ladisch.de>,
Martin Koegler <martin.koegler@chello.at>
Subject: Re: [PATCH v2 1/3] ALSA: seq: Provide card number / PID via sequencer client info
Date: Mon, 7 Mar 2016 22:13:05 +0100 [thread overview]
Message-ID: <20160307211305.GA24681@mail.zuhause> (raw)
In-Reply-To: <s5h37s7sxq3.wl-tiwai@suse.de>
On Thu, Mar 03, 2016 at 10:43:32AM +0100, Takashi Iwai wrote:
> > From: Martin Koegler <martin.koegler@chello.at>
> >
> > rawmidi devices expose the card number via IOCTLs, which allows to
> > find the corresponding device in sysfs.
> >
> > The sequencer provides no identifing data. Chromium works around this
> > issue by scanning rawmidi as well as sequencer devices and matching
> > them by using assumtions, how the kernel register sequencer devices.
> >
> > This changes adds support for exposing the card number for kernel clients
> > as well as the PID for user client.
> >
> > The minor of the API version is changed to distinguish between the zero
> > initialised reserved field and card number 0.
> >
> > Signed-off-by: Martin Koegler <martin.koegler@chello.at>
>
> This ABI change itself looks simple enough, so I have no big problem
> to merge if you can convince other people with it :)
>
> Clemens?
The current solution has been proposed by him:
http://mailman.alsa-project.org/pipermail/alsa-devel/2016-February/104175.html
Regards,
Martin
next prev parent reply other threads:[~2016-03-07 21:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-02 18:26 [PATCH v2 2/3] Provide sequencer sound card number / PID via alsa-lib Martin Koegler
2016-03-02 18:26 ` [PATCH v2 3/3] Show sequencer sound card numer/PID via aconnect Martin Koegler
2016-03-08 10:00 ` Takashi Iwai
2016-03-02 18:26 ` [PATCH v2 1/3] ALSA: seq: Provide card number / PID via sequencer client info Martin Koegler
2016-03-03 9:43 ` Takashi Iwai
2016-03-07 21:13 ` Martin Koegler [this message]
2016-03-08 9:00 ` Clemens Ladisch
2016-03-08 9:54 ` Takashi Iwai
2016-03-03 9:46 ` [PATCH v2 2/3] Provide sequencer sound card number / PID via alsa-lib Takashi Iwai
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