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Re: [5.0] USB device ignored on boot

On Sun, 19 Jul 2009, Andreas Wrede wrote:

> I am running NetBSD/amd64 5.0_STABLE on a Gigabyte GA-MA78GM-US2H motherboard
> with three uplcom(4) USB to serial adapters.  On boot, only two of these are
> recognized, I have to manually un- and re-plug the third adapter in order to
> get it attached. (See end of the dmesg output). Un- and re-plugging is not
> even a work-around since the machine is running remotely - unattended.

> I also noticed that the output from the attach of the second uplcom(4) adapter
> gets intermixed with other boot messages:
> [...]
> ucom0 at uplcom0
> uplcom1 at uhub1 port 1boot device: wd0
> root on wd0a dumps on wd0b
> uplcom1: Prolific Technology Inc. USB-Serial Controller, rev 1.10/3.00, addr 2
> [...]
> Is there a locking issue here?

not because of that at least, the usb attachment runs in a thread and is
event driven so it would be pretty normal for other things to be going on
at the same time..

the non attachment problem I don't know about, did it work with a previous

I don't know if drvctl(8) could be used to work around the problem
remotely, can you force a bus rescan?


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