Hello,
I wanted to report a problem with Linux kernel 2.6.15.1 and uhci_hcd for USB1
on
an Shuttle AV11 board (VIA Apollo chipset, P III, 700MHz): An USB device
(connected already when the kernel booted) was not accepted ("device not
accepting
address"). Unplugging and re-plugging the device did not work either.
Connecting a
memory stcik on the other port showed the same effect.
However after "rmmod uhci_hcd" and "modprobe uhci_hcd" both devices worked.
Also the problem may not appear every time during boot.
This seems to be an indication that there is an initialization problem withing
the
USB stack. And this problem is not new in 2.6.15.1. It may have a very long
history. Maybe someone could check the code for possible problems.
(Note: For SuSE's 10.0 kernel 2.6.13-15.7-default I have the problem with
ehci_hcd
on a USB 2.0 device: The devices also seem to "not accept the address", and
when I
unload the ehci_hcd module, the device successfully connects as USB1. Bug known
at
SuSE, but no solution yet)
Regards,
Ulrich
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