linux-kernel - Re: ASUS ScreenDuo

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Message-Id: <1207252732.24007.5.camel@bip.parateam.prv>
Date:	Thu, 03 Apr 2008 21:58:52 +0200
From:	Xavier Bestel <xavier.bestel@...e.fr>
To:	david@...g.hm
Cc:	Alan Stern <stern@...land.harvard.edu>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: ASUS ScreenDuo


On jeu, 2008-04-03 at 13:04 -0700, david@...g.hm wrote:
> On Thu, 3 Apr 2008, Xavier Bestel wrote:
> 
> > On jeu, 2008-04-03 at 15:07 -0400, Alan Stern wrote:
> >> On Thu, 3 Apr 2008, Xavier Bestel wrote:
> >>
> >>> On jeu, 2008-04-03 at 11:37 -0400, Alan Stern wrote:
> >>>> On Thu, 3 Apr 2008, Xavier Bestel wrote:
> >>>>
> >>>>> Hi,
> >>>>>
> >>>>> I have an ASUS motherboard with an USB gadget, the ASUS ScreenDUO. It's
> >>>>> an independant little lcd screen with buttons, apparently it runs some
> >>>>> kind of OS because it can access the net (e.g. to retrieve RSS) even
> >>>>> when the computer is off - I guess they mean soft-off.
> >>>>>
> >>>>> Well, all that is theory because it's under Vista, which I don't have.
> >>>>> Under Linux the ScreenDUO is kind-of recognized: it says it's a mass
> >>>>> storage device, but I can't mount it (the kernel says it's bound to sdc,
> >>>>> but sdc doesn't exist).
> >>>>> I'd like to access it. Does anyone know how that thing works ?
> >>>>
> >>>> What does usbmon show when you modprobe usb-storage?  (The instructions
> >>>> for usbmon are in the kernel source file Documentation/usb/usbmon.txt.)
> >>
> >> ...
> >>
> >> The ScreenDUO is reporting that no medium is present.  Maybe it needs
> >> you to insert some sort of flash memory card before it will work as a
> >> mass-storage device.
> >
> > Ah. Apparently it just waits for some driver from the Windows side (no
> > way to insert anything in there).
> > I guess it'll just be another useless piece of electronics at home.
> 
> for future use, what was it that made everyone decide that this is going 
> to show up as a storage device?
> 
> with a screen and buttons I would have guessed a HID of some sort.

Maybe it waits for a firmware or something first.

	Xav


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