RE: [Ltib] Xfbdev

[Paolo Cremonese]

Hi Kevin,
now I have the TS working and well calibrated.
Running ts_test it works fine.
Running 
$ Xfbdev -ac -mouse mouse -keybd keyboard &
that is the line in startx, the cursor behavior is very strange, it
"runs away" when I touch it as it looks at a mouse (differential device)
instead a touchscreen (linear device).
Maybe I have to make the call with different parameters?

I try to substitute "mouse" with "tslib", "touchscreen", "ts", but are
not found names.

Best Regards,
Paolo


On ven, 2009-12-11 at 18:06 +0100, Kevin Wells wrote:
> Hi Paolo,
> 
> Here is some more info..
> 
> I've tested tslib with the 32xx board and have used ts_calibrate
> to calibrate the touchscreen. Here are the basic steps...
> 
> Make sure the lpc32xx_ts driver is built with ABS_PRESSURE support.
> This is another selectable option in the input/touchscreen area of
> the Linux build menu.
> 
> You may need to build a new device node if it doesn't exist now. I
> created /dev/input/event0 on major 13, minor 64.
> 
> You can do a 'cat /dev/input/event0' on the 13/64 device node and
> should see lots of data being dumped when you touch the
> touchscreen.
> 
> Setup the following environment variables for tslib:
> TSLIB_TSDEVICE=/dev/input/event0
> TSLIB_CALIBFILE=/etc/pointercal
> TSLIB_CONFILE=/etc/ts.conf
> 
> Add a new file (/etc/ts.conf) with the following lines:
> module_raw input-raw
> module pthres pmin=1
> module variance delta=100
> module dejitter delta=10
> 
> I hope this helps,
> Kevin
> 
> > 
> > Hi Alan,
> > thanks again.
> > 
> > I'm troubling with ts_calibrate/ts_test. Giving:
> > 
> > address@hidden /]# cat /proc/bus/input/devices
> > I: Bus=0019 Vendor=0001 Product=0002 Version=0100
> > N: Name="LPC32xx Touchscreen"
> > P: Phys=lpc32xx/input0
> > S: Sysfs=/class/input/input0
> > U: Uniq=
> > H: Handlers=mouse0 event0
> > B: EV=b
> > B: KEY=400 0 0 0 0 0 0 0 0 0 0
> > B: ABS=1000003
> > address@hidden /]#
> > 
> > then I think I have to set:
> > 
> > export TSLIB_TSDEVICE=/dev/input/event0
> > export TSLIB_CONFFILE=/usr/etc/ts.conf
> > 
> > but if I ls the /dev, only event1 and mice are present. Then:
> > 
> > address@hidden /]# export TSLIB_TSDEVICE=/dev/input/event1
> > address@hidden /]# ts_calibrate
> > ts_open: No such device
> > address@hidden /]#
> > 
> > changing in:
> > 
> > address@hidden /]# export TSLIB_TSDEVICE=/dev/input/event0
> > address@hidden /]# ts_calibrate
> > ts_open: No such file or directory
> > address@hidden /]#
> > 
> > How can I know the device used for input by my TS?
> > 
> > Best regards,
> > Paolo
> > 
> > 
> > On gio, 2009-12-10 at 08:38 -0200, Alan Carvalho de Assis wrote:
> > > Hi Paolo,
> > >
> > > On 12/10/09, Paolo Cremonese <address@hidden> wrote:
> > > > Hi Alan,
> > > > your suggestion was very useful, Thank you!
> > > >
> > >
> > > You are welcome!
> > >
> > > > I have found a problem in the Xfbdev command, which tries to configure
> > > > the display with a different resolution. It should be nice to take a
> > > > look to the Xfbdev command, but I can't find the code...
> > > > I have modified the fb driver, but I don't like this solution.
> > > > Now the X11 starts: how can I calibrate the touchscreen?
> > > > there is an application in the rootfs to do this?
> > > >
> > >
> > > You can find the Xfbdev under xorg-server package. Xfbdev is also
> > > known as Kdrive, a reduced X Server.
> > >
> > > You can use the ts_calibrate application to calibrate you touchscreen,
> > > just select the tslib package to install this application.
> > >
> > > Best Regards,
> > >
> > > Alan
> > 
> > 
> > 
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