From: Clemens Ladisch <clemens@ladisch.de>
To: Demian Martin <demianm_1@yahoo.com>
Cc: hegge@resisty.net, alsa-devel@alsa-project.org
Subject: Re: ALSA: usb: Work around CM6631 sample
Date: Wed, 06 Mar 2013 09:43:00 +0100 [thread overview]
Message-ID: <51370194.1080808@ladisch.de> (raw)
In-Reply-To: <001f01ce19fa$6d770c80$48652580$@com>
Demian Martin wrote:
> CMedia ... told me that the chips are different
The CM6610/20 chips did not get an updated -A version, so it's possible
that the changes are just for the I²S I/Os, which should not affect the
USB interface. Maybe the newer chip just gave them an opportunity to
update the firmware.
> there is a sequence problem between setting sample rate and sending
> the "play' command.
This sound like the interface setting problem fixed by this patch.
> Something about UAC1 method not being the same as UAC2.
But this might indicate that we need to kick the Clock Source Entity.
Regards,
Clemens
prev parent reply other threads:[~2013-03-06 8:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-05 23:37 ALSA: usb: Work around CM6631 sample Demian Martin
2013-03-06 8:43 ` Clemens Ladisch [this message]
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