From: Clemens Ladisch <clemens@ladisch.de>
To: Daniel Mack <daniel@caiaq.de>
Cc: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org
Subject: Re: [RESENT] [PATCH - Fix Fast Track Ultra series: 44.1/88.1 kHz 1/Fix playback/capture issues and related chrashes at 44100 Hz and 88200 Hz for M-Audio Fast Track Ultra series.
Date: Fri, 03 Sep 2010 16:26:51 +0200 [thread overview]
Message-ID: <4C8105AB.10802@ladisch.de> (raw)
In-Reply-To: <20100903133414.GS17833@buzzloop.caiaq.de>
Daniel Mack wrote:
> On Thu, Sep 02, 2010 at 01:13:48PM +0200, Clemens Ladisch wrote:
> > I've got several reports that devices no longer work since UAC2 support got
> > added. But I've just noticed this is not related to the interface class
> > but to the interface protocol: the new code added checks for UAC_VERSION_1
> > or _2, but real devices apparently write just random junk into this field.
> > (For vendor-specific interfaces, they are actually justified to do so.)
>
> Grr. So what about cases where this "random junk" is 0x20 by coincidence?
Actually, it isn't too random: I've seen 0xff (obviously "vendor-
specific") and 0x01/0x02 (interface subclass moved to protocol).
Regards,
Clemens
next prev parent reply other threads:[~2010-09-03 14:26 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-06 8:05 [PATCH - Fix Fast Track Ultra series: 44.1/88.1 kHz 1/Fix playback/capture issues and related chrashes at 44100 Hz and 88200 Hz for M-Audio Fast Track Ultra series Felix Homann
2010-07-07 9:05 ` Felix Homann
2010-07-07 12:44 ` Clemens Ladisch
2010-07-07 13:19 ` Felix Homann
2010-07-07 13:59 ` Felix Homann
2010-07-07 14:23 ` Clemens Ladisch
2010-07-07 16:55 ` Felix Homann
2010-07-08 6:25 ` Clemens Ladisch
2010-07-08 8:35 ` Felix Homann
2010-07-08 13:10 ` Clemens Ladisch
2010-07-08 15:14 ` Felix Homann
2010-07-08 15:19 ` Clemens Ladisch
2010-07-08 15:54 ` Felix Homann
2010-07-16 8:27 ` Felix Homann
2010-08-31 6:39 ` Felix Homann
2010-08-31 8:24 ` [PATCH] - Fix Fast Track Ultra series: 44.1/88.1 kHz 1/Fix playback/capture issues and related crashes " Paul Menzel
2010-09-01 8:48 ` [RESENT] [PATCH - Fix Fast Track Ultra series: 44.1/88.1 kHz 1/Fix playback/capture issues and related chrashes " Felix Homann
2010-09-02 8:33 ` Takashi Iwai
2010-09-02 9:12 ` Clemens Ladisch
2010-09-02 9:16 ` Daniel Mack
2010-09-02 11:13 ` Clemens Ladisch
2010-09-03 13:34 ` Daniel Mack
2010-09-03 14:26 ` Clemens Ladisch [this message]
2010-09-02 10:12 ` Felix Homann
-- strict thread matches above, loose matches on Subject: below --
2010-09-02 18:05 Garnet MacPhee
2010-09-03 7:26 ` Clemens Ladisch
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