From: Roy Vegard Ovesen <roy.vegard.ovesen@gmail.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: Roy Vegard Ovesen <roy.vegard.ovesen@gmail.com>, Xj <xj@wp.pl>,
linux-sound <linux-sound@vger.kernel.org>,
Nick Kossifidis <mickflemm@gmail.com>
Subject: Re: [BUG] Presonus Studio 1824c firmware 3.11 no longer exposes mixer interface ("Quirk or no altset; falling back to MIDI 1.0")
Date: Sat, 18 Oct 2025 19:36:24 +0200 [thread overview]
Message-ID: <aPPQGFNX26KhrVQD@ark> (raw)
In-Reply-To: <871pn26kmt.wl-tiwai@suse.de>
On Fri, Oct 17, 2025 at 09:40:58AM +0200, Takashi Iwai wrote:
> On Thu, 16 Oct 2025 22:21:24 +0200,
> Roy Vegard Ovesen wrote:
> > > [ 3.354844] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00
> > > [ 3.354845] RSP: 002b:00007ffc8d758ca0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> > > [ 3.354846] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fab8f3112ff
> > > [ 3.354846] RDX: 00007ffc8d758e30 RSI: 00000000c4c85513 RDI: 0000000000000004
> > > [ 3.354847] RBP: 00007ffc8d759480 R08: 00007ffc8d758e30 R09: 0000000000000000
> > > [ 3.354847] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
> > > [ 3.354848] R13: 0000000000000003 R14: 0000000000000001 R15: 0000000000000001
> > > [ 3.354848] </TASK>
> > > [ 3.354849] ---[ end trace 0000000000000000 ]---
> >
> > This looks a bit sus.
>
> Yes, this must be fixed. It implies the pipe passed to
> snd_usb_ctl_msg() in snd_sc1810c_get_status_field() is somehow
> incorrect.
I have submitted a patch to fix the control direction.
I think this warning has appeared for S1810c devices too,
and this should fix it for those devices too.
--
Roy
next prev parent reply other threads:[~2025-10-18 17:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-15 23:18 [BUG] Presonus Studio 1824c firmware 3.11 no longer exposes mixer interface ("Quirk or no altset; falling back to MIDI 1.0") Pawel / Xj
2025-10-16 10:53 ` Takashi Iwai
[not found] ` <bafec1e8819e47f1bea6e0bfa3f877cf@grupawp.pl>
2025-10-16 15:26 ` Takashi Iwai
2025-10-16 17:53 ` Xj
2025-10-16 20:21 ` Roy Vegard Ovesen
2025-10-17 2:36 ` Xj
2025-10-17 7:40 ` Takashi Iwai
2025-10-18 17:36 ` Roy Vegard Ovesen [this message]
2025-10-16 19:11 ` Roy Vegard Ovesen
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