XHCI device probe inconsistency

[Mike Tancsa]

On 10/8/2014 5:27 AM, Hans Petter Selasky wrote:
> Hi,
>
> If you plug the device after boot, what happens then?
>
> What speed does the BIOS enumerate the device at?
>
> Have you checked for USB related BIOS settings?

Hi,
	Hmmm, I could not recreate the issue at first!!  I tried both a soft 
and cold boot, and with and without a CF in it and it would always come 
up as USB3....

And then I remember setting the BIOS option

Make USB Non Bootable (Enable/Disable)

so it would not try and boot from the flash.

Once I set that to enable, so it could not boot from a USB device, the 
CF Reader/Writer always probes as USB3 speed!  When its disabled, at 
boot time it probes as USB2 speeds until I disconnect / reconnect.

Thanks!

	---Mike




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Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike at sentex.net
Providing Internet services since 1994 www.sentex.net
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