From: Clemens Ladisch <clemens@ladisch.de>
To: Monty Montgomery <xiphmont@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: A problem with USB audio devices and the UHCI scheduler
Date: Wed, 04 Jul 2012 15:43:04 +0200 [thread overview]
Message-ID: <4FF44868.70506@ladisch.de> (raw)
In-Reply-To: <CACrD=+-NB0Lyd=BAAC7D304fUA6xj-OZOao5_9B96C5ffi2osA@mail.gmail.com>
Monty Montgomery wrote:
> The device does use altsets for different sample formats and
> input/output channels, just not altsets for each sample rate (as
> supported/encouraged by the Audio Class...
Supported, but not encouraged:
| A typical use of alternate settings is to provide a way to change
| the bandwidth requirements an active AudioStreaming interface
| imposes on the USB.
> Is it really the case that other Audio Class devices never make use
> of the "multiple sample rates in an altset" feature?
They do, but not when bandwidth matters.
Regards,
Clemens
prev parent reply other threads:[~2012-07-04 13:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-30 1:05 A problem with USB audio devices and the UHCI scheduler Monty Montgomery
2012-07-03 17:47 ` Clemens Ladisch
2012-07-03 18:13 ` Monty Montgomery
2012-07-04 13:43 ` Clemens Ladisch [this message]
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