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From: gregkh@linuxfoundation.org (Greg KH)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Disable xhci_hcd USB 3.0 module
Date: Mon, 15 Dec 2014 07:30:25 -0800	[thread overview]
Message-ID: <20141215153025.GA7218@kroah.com> (raw)
In-Reply-To: <CACV5_BXO6zPtEEbVzHVxQ_q9GikVhBAy75OfnPN7JfozYuR+qA@mail.gmail.com>

On Mon, Dec 15, 2014 at 01:04:57PM -0200, Gustavo Duarte wrote:
> Hi guys,
> 
> I have a notebook with 2 ports USB 2.0 and one USB 3.0.
> 
> For some reason, kernel uses xhci_hcd module driver for all the three ports.

Then you really have 3 USB 3 ports in the system.

> Since I have an application that isn't compatilbe with xhci_hcd
> driver, I need disable it, and force the use of ehci-pc driver.

What type of application isn't compatible with xhci-hcd?  Shouldn't we
fix something like this in the kernel as this isn't a good thing to
have.

> My question is, since xhci_hcd is compiled inside the kernel, how can
> i do to disable it, without re-compile the kernel ?

You control where the driver is compiled, why not change it if needed?

confused,

greg k-h

  reply	other threads:[~2014-12-15 15:30 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-15 15:04 Disable xhci_hcd USB 3.0 module Gustavo Duarte
2014-12-15 15:30 ` Greg KH [this message]
2014-12-15 16:50   ` Gustavo Duarte
2014-12-15 17:08     ` Greg KH
2014-12-15 20:47       ` Gustavo Duarte
2014-12-15 21:01         ` Greg KH
2014-12-15 21:32           ` Gustavo Duarte
2014-12-15 21:40             ` Greg KH
2014-12-15 21:41             ` Mandeep Sandhu

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