Drivers for USB 3.0 host controllers

NTDEV
1

Hi ALL,
Does widows have built in drivers for USB 3.0 Host controllers(ASMedia , NEC , TI , Fresco logic) ?
And if windows have built in drivers , How can i enable/disable the low-power(U1 , U2 ,U3) fr USb 3.0 host controllers ?

2

xxxxx@gmail.com wrote:

Does widows have built in drivers for USB 3.0 Host controllers(ASMedia , NEC , TI , Fresco logic) ?

Up through Windows 7, there is no built-in support for USB 3. Any USB 3
host controller you have is using a driver stack supplied by the
manufacturer.

Windows 8 includes a Microsoft XHCI driver, which should support all USB
3 host controllers.

And if windows have built in drivers , How can i enable/disable the low-power(U1 , U2 ,U3) fr USb 3.0 host controllers ?

Just follow the rules for power management. The driver stack will
manage the power state, just like it does in USB 2. The only real
driver involvement here is making sure you manage your “idle” state, so
the stack can shift you to U3.

–
Tim Roberts, xxxxx@probo.com
Providenza & Boekelheide, Inc.

3

Hi Tim,
Thank you for your message

Regards
Rahul kumar

On Tue, Jul 31, 2012 at 9:35 PM, Tim Roberts wrote:

> xxxxx@gmail.com wrote:
> > Does widows have built in drivers for USB 3.0 Host controllers(ASMedia ,
> NEC , TI , Fresco logic) ?
>
> Up through Windows 7, there is no built-in support for USB 3. Any USB 3
> host controller you have is using a driver stack supplied by the
> manufacturer.
>
> Windows 8 includes a Microsoft XHCI driver, which should support all USB
> 3 host controllers.
>
>
> > And if windows have built in drivers , How can i enable/disable the
> low-power(U1 , U2 ,U3) fr USb 3.0 host controllers ?
>
> Just follow the rules for power management. The driver stack will
> manage the power state, just like it does in USB 2. The only real
> driver involvement here is making sure you manage your “idle” state, so
> the stack can shift you to U3.
>
> –
> Tim Roberts, xxxxx@probo.com
> Providenza & Boekelheide, Inc.
>
>
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