linux-kernel - Re: [PATCH] ALSA: usb-audio: Add quirk for Focusrite Scarlett 18i8

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Thu, 18 Jul 2013 17:53:12 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Chris J Arges <christopherarges@...il.com>
Cc:	Torstein Hegge <hegge@...isty.net>, alsa-devel@...a-project.org,
	martin@...tin.net, Jaroslav Kysela <perex@...ex.cz>,
	Eldad Zack <eldad@...refinery.com>,
	Trulan Martin <trulanm@...il.com>,
	Damien Zammit <damien@...audio.com>,
	Mark Hills <mark@...x.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ALSA: usb-audio: Add quirk for Focusrite Scarlett 18i8

At Thu, 18 Jul 2013 10:16:29 -0500,
Chris J Arges wrote:
> 
> On 07/17/2013 06:53 PM, Torstein Hegge wrote:
> > On Wed, Jul 17, 2013 at 16:12:12 -0500, Chris J Arges wrote:
> >> This patch is similar to commit 1762a59d8e8b5e99f6f4a0f292b40f3cacb108ba.
> >> The same non-standard interface descriptor causes snd_usb_create_mixer()
> >> to fail for the Focusrite Scarlett 18i8 as well.
> > 
> > Did you test this on a recent kernel? I don't think this quirk or the quirk
> > introduced by 1762a59d "ALSA: usb-audio: Add quirk for Focusrite Scarlett
> > 18i6" is necessary since kernel 3.9, as it includes:
> > 
> > 4d7b86c98 "ALSA: snd-usb: mixer: propagate errors up the call chain"
> > 83ea5d18d "ALSA: snd-usb: mixer: ignore -EINVAL in snd_usb_mixer_controls()"
> > 61ac51301 "ALSA: usb: Parse UAC2 extension unit like for UAC1"
> > 
> > Those were tested on a Focusrite Scarlett 8i6, but the lsusb output
> > from 18i6 and 8i6 looks similar,
> > http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg29426.html
> > http://www.mail-archive.com/alsa-user@lists.sourceforge.net/msg27776.html
> > I'm guessing the 18i8 isn't that different.
> > 
> 
> Re-testing this, I see that you are right. The mixer still doesn't work,
> but at least its usable for playback/recording/midi.
> Ignore this patch then.

OK, thanks for a quick update.


Takashi
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/