Touchscreen under QNX/Photon

[Zeljko Fucek]

Hi List,

I would really apreciate if someone could help me. The problem is that I
can't make the touchscreen work under QNX 4.25 / Photon 1.14. It's
running fine if I attach a hard disk which has Win95 and touchscreen
drivers installed on it.

Hardware:
- Advantech SBC 4823 with M-Systems DiskOnChip, Ethernet, Video,
LPT1, COM1 and COM2 (16C550 UART)
- Elographics Accutouch touchscreen E271-2210 (controller card is built
into the touchscreen and there is a serial cable to be connected to
one of PC's COM ports)

So far, I have tried the following settings pursued by acalib and restarting
Photon, but it did not help. Inputtrap detects only Elo bus interface
adapters.

Setting #1:
- /etc/config/sysinit.1 contains
/dev/Dev.ser -N/dev.ser1 3f8,4 &
/dev/Dev.ser -N/dev.ser2 2f8,3 &
- /etc/config/trap/trap.1 contains
kbd -R
fd -d/dev/kbd
msoft -R
fd -d/dev/ser1
intellitch -b9600
fd -d/dev/ser2

Setting #2:
-same as #1, no mouse, touchscreen on COM2

Setting #3:
-same as #2, no mouse, touchscreen on COM1

Setting #4:
- /etc/config/sysinit.1 does not contain
/dev/Dev.ser -N/dev.ser1 3f8,4 &
/dev/Dev.ser -N/dev.ser2 2f8,3 &
- /etc/config/trap/trap.1 has
kbd -R
fd -d/dev/kbd
msoft -R
uart -i4 -p3f8
intellitch -b9600
uart -i3 -p2f8

Setting #5:
-same as #4, no mouse, touchscreen on COM2

Setting #6:
-same as #5, no mouse, touchscreen on COM1.

When starting Photon in safe mode (#ph -s) and typing
#Input -vvv intellitch fd -d/dev/ser2 the Input tells that
the calibration has been found for 600x480 and then the mouse and
keyboard don't accept any input and Photon appears to be frozen.

Regards,

Zeljko

[nip...@my-deja.com]

We're using an Elographics resistive touchscreen/controller with great
success. I don't recall the model, but it connects to a Rocketport
serial port, raw mode, 9600 baud, if I remember correctly. This driver
acts just like the Dev.ser driver, so the settings are similar. We
start up the driver in its default settings, then in sysinit.1 use the
following:

stty +RTS +DTR </dev/rkt1

We specifically do not invoke mousetrap here, and do not start the
Mouse driver, since it interferes with the Photon driver in
unpredictable ways.

input.1 contains

kbd -R fd -d/dev/kbd smartset fd -d/dev/rkt1

This is the version with no mouse. With a mouse, it's

kbd -R fd -d/dev/kbd ps2 -r kb -2 rel -G2 smartset fd -d/dev/rkt1

This is using a ps2 mouse, and has the rel -G2 to speed it up. The
mouse has to be connected to the ps2 port to use these settings when
the system boots on some motherboards/BIOSs, otherwise, Photon hangs on
startup.

To calibrate, start the system with a mouse attached. Run photon, and
setup your display settings as appropriate. Startup a shell, then give
the command

acalib

and use your finger to touch the screen where acalib tells you, and use
the mouse to press exit.

Let me know if this helps.

- Kevin

In article <8hcg0h$g8s$1...@inn.qnx.com>,

Sent via Deja.com http://www.deja.com/
Before you buy.

[Mitchell Schoenbrun]

Zeljko Fucek <vel...@istar.ca> wrote:
> - Elographics Accutouch touchscreen E271-2210 (controller card is built
> into the touchscreen and there is a serial cable to be connected to
> one of PC's COM ports)

Here's what I'd try first. Run:

# sin arg | grep Input

and see if there is an Input started with your arguments.
Next I'd run:

# qtalk -m /dev/ser1

Touch the screen and see if you are getting charactors.

You can start a 2nd touch screen only Input from the shell during
testing to try various configurations.

--
Mitchell Schoenbrun --------- masc...@pobox.com

[Zeljko Fucek]

Thanks Kevin and Mitchell, the touchscreen works now. For some strange
reason
I insisted on using intellitch instead of smartset.

Zeljko

Zeljko Fucek <vel...@istar.ca> wrote in message
news:8hcg0h$g8s$1...@inn.qnx.com...

> Hi List,
>
> I would really apreciate if someone could help me. The problem is that I
> can't make the touchscreen work under QNX 4.25 / Photon 1.14. It's
> running fine if I attach a hard disk which has Win95 and touchscreen
> drivers installed on it.
>
> Hardware:
> - Advantech SBC 4823 with M-Systems DiskOnChip, Ethernet, Video,
> LPT1, COM1 and COM2 (16C550 UART)

> - Elographics Accutouch touchscreen E271-2210 (controller card is built
> into the touchscreen and there is a serial cable to be connected to
> one of PC's COM ports)
>