From owner-freebsd-questions@FreeBSD.ORG  Wed Mar 10 00:53:39 2004
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Date: Wed, 10 Mar 2004 00:53:39 -0800 (PST)
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Subject: Re: USB Driver Questions
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I figured it out. To dynamically load/unload the driver it has to be
excluded from the kernel config. Only then will the kld* tools allow to
manipulate the module.

Chris

On Tue, 9 Mar 2004 admin2@forkthepenguin.com wrote:

>
> How does one force the use of a particular driver for a USB device without
> removing the preferred driver from the kernel conf? For example, I have an
> HID compliant device that is handled by the uhid driver, however I wish to
> use the ugen driver temporarily for some testing. I created the
> appropriate entry in /etc/usbd.conf with :
>
> devname "ugen[0-9]+"
>
> But uhid0 continues to be used after restarting usbd. I also tried to
> unload the uhid kernel module with kldunload, but I received an error that
> the module could not be found even though it showed up under kldstat.
> Recompiling the kernel without uhid support caused the desired effect, but
> I'd rather not have to reboot everytime I want to switch drivers.
>
> Thanks in advance,
>
> Chris
>