From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Alexander E. Patrakov" <patrakov@gmail.com>
Subject: Re: [RFC PATCH 1/4] ALSA: core: let low-level driver
 or userspace disable rewinds
Date: Wed, 15 Jul 2015 09:51:27 +0500
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To: Raymond Yau <superquad.vortex2@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>, ALSA Development Mailing List <alsa-devel@alsa-project.org>, Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
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15.07.2015 06:23, Raymond Yau wrote:
>
>  >
>  > I expected an answer in the form "XXX mW out of YYY, for
> such-and-such buffer and period sizes".
>
> The new parameter is to inform the application that  the application can
> only use sequential write and not random write

Please reread the description, it also works the other way:

"""Add new hw_params flag to explicitly tell driver that rewinds
will never be used."""

-- 
Alexander E. Patrakov