Zytronic touch screen driver

khards · 02-02-2005, 07:28 AM

Hello,

I have a touch screen made by a company called ZYTRONIC, for a while I have had some files (drivers) kicking around supposidly for redhat 8.1. Basically I dont have much of a clue how to compile them for the linux I am using, SUSE9.1 and would be gratefuull if someone could take a look at them.

Files can be found at:

geocities.com/keithhards2004/lma7.zip

Regards,

Keith Hards.

khards · 02-03-2005, 07:10 AM

khards · 02-08-2005, 07:19 AM

bump again,

prettysmurfed · 02-08-2005, 01:27 PM

Hi Khards

You cannot compile the driver while you don't have the source - but you could try installing the driver with your X windows - the driver you are asking about is a X windows driver.
I have unsuccesfully tried the drivers myself with a zytronic capacitive projection touch screen but I have not given up just yet.
the binstead_drv.so and binstead_dsp.so must be placed in your /usr/X11R6/lib/modules/input, the next step is to connect your touchscreen to your comport # - if you have used comport 1 then the corresponding device file is ttyS0 - if comport 2 then ttyS1, next you must configure your "XF86Config" script probably placed in the /etc/X11/ directory.
Add a new section

Section "InputDevice"
Identifier "TouchScreen1"
Driver "binstead"
Option "Device" "/dev/ttyS0"
Option "DspFile" "/usr/X11R6/lib/modules/input/binstead_dsp.so"
Option "Protocol" "TouchScreen"
EndSection

under "ServerLayout" add

InputDevice "TouchScreen1" "SendCoreEvents"

If you think your screen are using another baudrate than the standard 9600 you could add a Option "BaudRate" "19200" or some other setting of your liking. If you want (not very) verbose debug messages printed to your X console you could add Option "DebugLevel" "1"
If you want to switch between the different input devices on your system you could use xsetpointer
I probably have forgotten some steps involved from when I tried your driver but the above description is the basic steps involved
Hope this helps (It didn't do me any good :-))

Kind regards
Martin

khards · 02-09-2005, 05:58 PM

Thanks, I shall give it a try tomorrow on mandrake 9,2 but I dont hold much hope as these drivers are for redhat 8.2 . The link I gave includes some code, but I dont know exactly what this is, any ideas??

prettysmurfed · 02-10-2005, 02:52 AM

To answer your first question: I tried the driver on a debian 2.4, with a XFree86 version 4.3.0. I did a "ldd binstead_drv.so" and "ldd binstead_dsp.so" and found no broken dependencies on my system. If you take a closer look at the binstead.c file you will find a reference to the XF86Config-4 file which means the driver will work on a XFree86 4.x server (somebody correct me if i'm wrong). I can't see that you should have a problem using the driver on your system as long as you have the right library files and the correct version of the X server.

The code you supplied contains a headerfile which shows the api layout of the binstead_dsp.so, this information can be utilized if you are linking the .so file directly with some code of your own. Because the design is made flexible separating the X server driver and the datacrunching you can actually interface the touchscreen to some other system than the x window.

The binstead.c file is the X window driver if you succesfully compile this file you will end up with the binstead_drv. In this file you can find which parameters you need to supply when you load the driver in your XF86Config file such as Option "Protocol" "TouchScreen", (this is what I did when i tried your driver).

regards
Martin

khards · 02-12-2005, 07:47 AM

I have tried these pre-compiled binarys with no luch, it just crashes X with signall 11, this happens when it loads. I suppose my next step will be to compile the .c files, do you have any idea about a makefile and how to do this?

Cheers,

Keith.

prettysmurfed · 02-12-2005, 01:27 PM

You only have one sourcefile - the X11 driver - binstead hasn't been so friendly :-) as to supply the source for the dsp part of the project (probably a company secret as to how the signals are being processed)
I have the following questions:
Have you any more info on the errors supplied from X11?
Zytronic has two types of capacitive touchscreens the normal one and the projected capacitive,
are you sure that the touchscreen are a binstead/zytronic capacitive projected touchscreen?
if you look at the controllerboard does it say "Binstead designs 1999" ?

compiling a shared object file from the binstead.c can be done with the following makescript (make sure your indentation is tab characters or it will not parse)

Code:

CFLAGS  = -Wall -ansi
CC      = gcc
LD      = gcc
LDFLAGS = -shared -Wl,-soname,$(TARGET).so -o
LDLIB   = 
TARGET  = binstead_drv
OBJS    = $(TARGET).o

$(TARGET).so : $(OBJS)
	$(LD)  $(LDFLAGS) $(TARGET).so $(OBJS) $(LDLIB)

%.o: ../%/%.c ../%/%.h
	$(CC) $(CFLAGS) -c ../%/%.c -o ../%/%.o

clean:
	rm -f $(TARGET).so
	rm -f $(TARGET).o

The resulting .so file should be copied to your /usr/X11R6/lib/modules/input
But I don't think this solves your problem, sorry -

go steady
Martin