Re: usb slow in >2.4.10

Edouard Gomez (ed.gomez@wanadoo.fr)
Fri, 30 Nov 2001 16:05:19 +0100


On Fri, Nov 30, 2001 at 02:16:16PM +0100, Armin Obersteiner wrote:

>
> Nov 24 12:52:21 elch kernel: uhci.c: USB Universal Host Controller Interface driver v1.1
> Nov 24 12:52:21 elch kernel: uhci.c: USB UHCI at I/O 0xd000, IRQ 9
> Nov 24 12:52:21 elch kernel: uhci.c: detected 2 ports
>

Hi,

I've experienced the same slowdown problem with Alcatel Speedtouch USB modem.
It should run fine again if you use the usb-uhci module instead of uhci.

I think something is broken in uhci.c since 2.4.10. Many users of the
speedtouch usb modem wrote to our ML to report such a problem. All users
were using uhci. I've done some basic tests and uhci was responsible of the
slowndown. 2.4.11 solved the timeouts problems, but the slowdown has not been
solved yet.

-- 
Edouard Gomez
http://perso.wanadoo.fr/ed.gomez
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/