Re: RES: TP-LINK USB no carrier after speed test

On 1/17/23 14:13, Ivan Quitschal wrote:
> not THAT fine of course, since its limited to around 300mbps. when in 
> USB 3 it reaches 600mbps just fine.
> 
> but besides that limitation from the version 2.0, it really works. ive 
> tried a whole day of heavy traffic here and nothing happened at all.
> 
> rings any bells ?

Yes,

I see that too:

ugen0.3: <ASIX Elec. Corp. AX88179> at usbus0, cfg=0 md=HOST spd=HIGH 
(480Mbps) pwr=ON (248mA)

Works like a charm spd=HIGH, but probably not super-speed.

Maybe the vendor does something different when the speed is super speed 
so that the BULK transport can move more data at a time ...

Vendor documentation is wanted! Maybe you simply need to USB trace the 
protocol when super-speed is used and vendor drivers are in place.

Right now there is no option to disable super speed only, but maybe try 
to run this command on all USB 3.x root HUBS:

usbconfig -d X.Y set_config 255

Maybe the device will show up as high-speed on the other computer 
aswell. It's worth a try.

--HPS