From owner-freebsd-usb@FreeBSD.ORG  Mon Jan 29 06:32:38 2007
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From: Hans Petter Selasky <hselasky@c2i.net>
To: perryh@pluto.rain.com
Date: Mon, 29 Jan 2007 07:32:13 +0100
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Cc: freebsd-usb@freebsd.org
Subject: Re: adding quirks to umass(4)
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On Monday 29 January 2007 03:28, perryh@pluto.rain.com wrote:
> > >   umass0: vendor 0x0784 product 0x4300, rev 1.10/3.00, addr 2
> > >   umass0: Get Max Lun not supported (SHORT_XFER)
> > >   umass0: Invalid CSW: sig 0x43425355 should be 0x53425355
>
> ...
>
> > > so I guess I need to set CAM_QUIRK_NOLUNS and something to adjust
> > > the sig.  This is on a Dell Optiplex GX1 with 6.1, and the camera
> > > is a Vivitar ViviCam 3825.
> >
> > There is a quirk, WRONG_CSWSIG, that will fix this.
>
> How do I do that?  Do I need to edit kernel sources and rebuild,
> or can quirks be set up using something like camcontrol(8)?

You need to edit the "sys/dev/usb/umass.c" sources.

--HPS