linux-kernel - Re: [PATCH resend 5/6] toshiba_acpi: Add support to enable/disable USB 3

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Message-ID: <20150210041138.GC37927@fury.dvhart.com>
Date:	Mon, 9 Feb 2015 20:11:38 -0800
From:	Darren Hart <dvhart@...radead.org>
To:	Azael Avalos <coproscefalo@...il.com>
Cc:	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH resend 5/6] toshiba_acpi: Add support to enable/disable
 USB 3

On Mon, Feb 09, 2015 at 08:34:53PM -0700, Azael Avalos wrote:
> Toshiba laptops that come with USB 3 ports have a feature that lets
> them disable USB 3 functionality and act as a regular USB 2 port, and
> thus, saving power.
> 
> This patch adds support to that feature, by creating a sysfs entry
> named "usb_three", acceptig only two parameters, 0 to disable the
> USB 3 (acting as a USB 2) and 1 to enable it.
> 

Similar question, does the system BIOS allow you to configure this setting? If
so, what would be the value for enabling it in the OS directly?

-- 
Darren Hart
Intel Open Source Technology Center
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