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Date:   Mon, 07 Nov 2022 09:15:54 +0100
Message-ID: <87pmdztc1x.wl-tiwai@suse.de>
From:   Takashi Iwai <tiwai@suse.de>
To:     =?ISO-2022-JP?B?GyRCZ2hENhsoQg==?= <aichao@kylinos.cn>
Cc:     <perex@perex.cz>, <tiwai@suse.com>, <alsa-devel@alsa-project.org>,
        <linux-kernel@vger.kernel.org>
Subject: Re: =?GB2312?B?u9i4tDo=?= Re: =?GB2312?B?u9i4tDo=?= Re: [PATCH]
 ALSA: usb-audio: fix Hamedal C20 usb camero disconnect issue
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On Mon, 07 Nov 2022 02:33:57 +0100,
???? wrote:
> 
>     Yes, the audio device is a UAC1 device, and it used set_sample_rate_v1 to
> set sample.
> 
>     So, I add a quirk to keep up the USB interface up even if the audio stream
> is closed.

Well, my question is also about the parameter changes.  This interface
reset doesn't cause any problem?  Or we should skip the interface
clear there, too?


Takashi

> 
> ----
> 
> ?????⣺Re: ?ظ?: Re: [PATCH] ALSA: usb-audio: fix Hamedal C20 usb camero
> disconnect issue            
> ?ա??ڣ?2022-11-04 17:59            
> ?????ˣ?Takashi Iwai            
> ?ռ??ˣ?????                    
> 
> On Fri, 04 Nov 2022 10:50:48 +0100,
> ???? wrote:
> >
> > I 'm sorry, I don't know whether you receiver my mail for 'lsusb -v' to
> > Hamedal C20
> 
> I received your previous mails including lsusb -v output.  But the
> post was filtered out by some reason?
> 
> So the audio device looks like a UAC1 device.  And this one requires
> to keep up the USB interface up even if the audio stream is closed
> (not about the parameter changes)?
> 
> Takashi
> 
>