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From: Hans Petter Selasky <hselasky@freebsd.org>
To: freebsd-current@freebsd.org
Date: Mon, 16 Feb 2009 19:30:24 +0100
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Cc: Giorgos Keramidas <keramida@freebsd.org>,
	Andrew Thompson <thompsa@freebsd.org>
Subject: Re: usb2 moused issue
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On Monday 16 February 2009, Giorgos Keramidas wrote:
> On Mon, 16 Feb 2009 17:52:56 +0100, Hans Petter Selasky 
<hselasky@freebsd.org> wrote:
> > On Monday 16 February 2009, Giorgos Keramidas wrote:
> >> I just rebuild my kernel after flipping the switch to usb2 in my kernel
> >> config file:
> >>
> >>
> >>   [ dmesg output with hw.usb2.ums.debug=1 ]
> >>   Feb 16 16:19:00 kobe kernel: ugen4.2: <Microsoft> at usbus4
> >>   Feb 16 16:19:00 kobe kernel: ums0: <Microsoft Wireless Optical Mouse
> >> 3000 (Model 1056), class 0/0, rev 2.00/0.07, addr 2> on usbus4 Feb 16
> >> 16:19:00 kobe kernel: ums0: 5 buttons and [XYZ] coordinates Feb 16
> >> 16:19:00 kobe kernel: ums_attach:582: sc=0xc63c7000
> >
> > If you "cat /dev/ums0" while having the debugging on, do you see
> > anything?
>
> Hmm, there's a dmesg line saying that:
>
>   Feb 16 20:09:51 kobe kernel: Symlink: ums0 -> usb4.2.0.16
>
> but there is no ums0 symlink in /dev:
>
>   # ls -ld ums*
>   ls: ums*: No such file or directory
>   #

Hi,

The device is invisible. You should be able to cat it, if it's not already 
opened.

--HPS