Device working on USB 2 but not on USB 3, best way to isolate the problem

[Erich Dollansky]

Hi,

On Saturday, June 30, 2012 10:02:21 PM Hans Petter Selasky wrote:
> On Saturday 30 June 2012 11:46:10 Erich Dollansky wrote:
> 
> You can try to look at the Linux XHCI driver, and the port switching support 
> they have. It appears that because many old OS'es does not support USB 3.0 out 
> of the box, mainboards come with EHCI + XHCI and this requires some magic bit 
> fidling, which is not in the FreeBSD XHCI driver.

I think that this is plain device dependent. I got meanwhile one device working. I used the quirks. I wonder why they are needed for 3 but not for 2 to make the device working.

If I find the time, I will do some tests with the other devices.

Erich