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From: Takashi Iwai <tiwai@suse.de>
To: Alexander Tsoy <alexander@tsoy.me>
Cc: alsa-devel@alsa-project.org
Subject: Re: [PATCH] ALSA: usb-audio: Add support for MOTU MicroBook IIc
Date: Fri, 06 Mar 2020 09:05:01 +0100	[thread overview]
Message-ID: <s5hpndpewnm.wl-tiwai@suse.de> (raw)
In-Reply-To: <20200229151815.14199-1-alexander@tsoy.me>

On Sat, 29 Feb 2020 16:18:15 +0100,
Alexander Tsoy wrote:
> 
> MicroBook IIc operates in UAC2 mode by default. This patch addresses
> several issues with it:
> 
> - MicroBook II and IIc shares the same USB ID. We can distinguish them
>   by interface class.
> - MaxPacketsOnly attribute is erroneously set in endpoint descriptors.
>   As a result this card produces noise with all sample rates other than
>   96 KHz. This also causes issues like IOMMU page faults and other
>   problems with host controller.
> - Sample rate changes takes more than 2 seconds for this device. Clock
>   validity request returns false during that period, so the clock validity
>   quirk is required.
> 
> Signed-off-by: Alexander Tsoy <alexander@tsoy.me>

Applied now.  Thanks.


Takashi

      reply	other threads:[~2020-03-06  8:06 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-29 15:18 [PATCH] ALSA: usb-audio: Add support for MOTU MicroBook IIc Alexander Tsoy
2020-03-06  8:05 ` Takashi Iwai [this message]

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