Am Fr, den 30.01.2004 schrieb David Brownell um 18:01:
> Nils Faerber wrote:
> > When I now plug in a USB device to the USB2.0 card nothing happens. No
> > device detect, not hotplug event, not even a interrupt on IRQ9 which I
> > would have expected.
> I see two wierdnesses. First, that "lspci" showed your card twice;
> which means that its PCI setup is broken. Second, that you didn't
> have "usb-ohci" loaded.
Do I have to load usb-ohci? Why is that? Isn't ehci-hcd the equivalent
for USB2.0 HCDs?
I'll try that ASAP ;)
...
OK, ASAP is over ;)
Result:
Machine freezes :((
Details:
The hint with the OHCI module brought me to plugging in a USB2 device
(I tried with USB1 all the time, my fault, sorry). Result was that the
machine hung at once. After removing the device the machine still hung.
After removing the card the machine continued, but unstable. After
installing the OHCI module the module is auto-loaded on card insert but
the machine also hangs on USB device plug-in.
> Root hub operations don't generate IRQs on Linux.
Really? Is plugin and unplug polled? Ouch...
Anyway, thanks for the hints!
> - Dave
CU
nils faerber
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