Re: [SLE] USB Serial port problem

Steve Graegert wrote:

On 11/15/05, Bruce Ferrell wrote:

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Bruce Ferrell wrote:

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Steve Graegert wrote:

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If you're using EHCI, try the following: (execute as root)

% rmmod ehci_hcd % modprobe uhci_hcd

or

% modprobe ohci_hcd

This forces the adapter to operate in USB 1.1 mode. Then plug the device in again. Hope this helps.

\Steve

uhci_hcd did it! Thanks!

The next question is how do I make my system reload the USB drivers that way on boot?

There is no way (at least none known to me) to detect a particular USB device automagically and then load/unload one or more kernel modules accordingly. When making these changes permanent it is very likely that other devices may not work properly. However, you may want to add the rmmod sequence to a script and add it to one of the rcd.* facilities (e.g. S99mylocal). Give it a try.

\Steve

--

Steve Graegert Software Consultant {C/C++ && Java && .NET} Office: +49 9131 7123988 Mobile: +49 1520 9289212

I found it! Under 9.3 the file /etc/init.d/kbd controls the usb module load order. I modified it to load usb-uhci first and that made it work from boot onward. I'll let you know if 10 is the same when my copy get's here. Bruce Ferrell