Subject: Re: ehci/cardbus...
To: Peter Seebach <email@example.com>
From: Lennart Augustsson <firstname.lastname@example.org>
Date: 05/10/2003 09:57:44
Yes, you need the companion controllers for it to work. I'll try and make
the error message a little clearer.
No, a USB2 hub won't help you, there's no support for USB2 hubs yet.
I'm not sure why USB1 devices don't work for you, they work with my CardBus
card last I tested.
Peter Seebach wrote:
>In message <200305100050.h4A0ovhe027040@guild.plethora.net>, Peter Seebach writ
>>ehci_pci.c tries to find these companion controllers, which, it appears,
>>should already have shown up as separate devices, before getting into the
>>ehci attach routine. The corresponding magic never seems to happen in CardBus
>*sigh*. Now I feel stupid.
>I had never enabled ohci at cardbus, because I didn't have any ohci
>Or so I thought.
>In fact, the ehci controller probes "companion controllers" - which are ohci
>With this crucial change, I can now probe the cardbus USB2 card just fine.
>Unfortunately, it doesn't *work* with USB 1.1 devices. The device is handed
>over to the "ohci" controller, which then announces "device disappeared after
>reset", and the port is dead thereafter until I pop the card out and plug it
>However, I can probably work around that with a USB2 hub.