Re: usb touchscreen breakage in 2.6.21-rc5-mm4 ?

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On Tue, 10 Apr 2007 00:36:43 +0200
Helge Hafting <[email protected]> wrote:

> On Fri, Apr 06, 2007 at 10:37:12PM -0400, Dmitry Torokhov wrote:
> > On Friday 06 April 2007 20:54, Helge Hafting wrote:
> > > I have an usb  touchscreen (egalax variety) that works with
> > > the 2.6.18 kernel supplied by debian.
> > > 
> > > It fails when I compile 2.6.21-rc5-mm4, tuned to the machine
> > > in question.  Unlike the debian kernel, this kernel don't use
> > > modules in order to save boot time.
> > > 
> > > The strange thing is, 2.6.21-rc5-mm4 recognizes the device.
> > > dmesg says things like 
> > > usb 3-2: Manufacturer: eGalac Inc.
> > > usb 3-2: Product: USB TouchController
> > > 
> > > and a lot more. Unlike 2.6.18, it never gets around to say
> > > "usbcore: registered new driver usbtouchscreen"
> > > which seems to indicate a problem.
> > > usbcore registers several other drivers, such as usbserial and pl2303
> > > that makes the gps work. It also registers other drivers like
> > > usb-storage,usbfs,hub,libusual,hiddev,usbhid.  But not usbtouchscreen.
> > > I believe I have turned on every config option for usb touchscreen,
> > > this should not be missing.
> > > 
> > > Is there something wrong, or could there be a seemingly unrelated option
> > > that I need to turn on?
> > 
> > Please make sure that you have CONFIG_USB_TOUCHSCREEN turned on.
> > 
> Unfortunately, I have:
> CONFIG_USB_TOUCHSCREEN=y
> CONFIG_USB_TOUCHSCREEN_EGALAX=y
> 
> Anything else I may have missed?
> 

Is 2.6.21-rc6 OK?

If so, please keep a close eye on 2.6.22-rcX, let us know if/when we've
moved this breakage into mainline :(
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