Disable xhci_hcd USB 3.0 module

Greg KH gregkh at linuxfoundation.org
Mon Dec 15 10:30:25 EST 2014


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



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