linuxconsole-dev

X-server config / serial mouse ??

[Ralf A. <ra...@sh...>]

Hello,

can somebody give me information on the Xserver configuration file
(comparable to /etc/X11/XF86config, ...-4 on x86 systems) for the iPAQ?
Does it support serial mice additionally or alternatively to the
touchscreen input?

i'm currently working on an adapter (microcontroler based) and the Linux
input modules to interface both a PS/2 keyboard and PS/2 mouse (that's
what e.g. the Twiddler2 chording keyboard provides) to just 1 serial port
(the 2 data streams will be interleaved and decomposed at the "host"
side).

Information on the components
 - the already working PS/2 => serial adapter with Linux input interface
   support
	http://www.iptel-now.de/HOWTO/PS2SER/ps2ser.html
 - PS/2 mouse to serial conversion (this is a bit more tricky because
   you need to send to the mouse as well to make it start sending data)
	http://www.iptel-now.de/HOWTO/PS2SER/ps2ser.html (enhancement
	section)
 - interfacing serial mice via the Linux input interface
	http://www.iptel-now.de/HOWTO/SUN_SERIAL_KBD/sun_serial_kbd.html

is available and has been tested.

Once i have the information on whether/how the iPAQ x-server handles
serial mice - i'll post the info on hardware and drivers that combine all
these components.

That will enable the Twiddler2 as an universal input device for the iPAQ
(or other handhelds with just a serial input interface).

regards
 ralf


--
Best regards,
 Ralf Ackermann

Re: X-server config / serial mouse ??

[James S. <jsi...@tr...>]

> can somebody give me information on the Xserver configuration file
> (comparable to /etc/X11/XF86config, ...-4 on x86 systems) for the iPAQ?
> Does it support serial mice additionally or alternatively to the
> touchscreen input?

Good question. Does the tiny X server support PS/2 mice? If it does then
your in luck.

To do this compile the kernel for the ipaq with:

In the driver/input directory

Input core support
Mouse support
Horizontal screen resolution '320'
Vertical screen resolution '240'

In drivers/char enable:

Joystick support
Serial port input line discipline

Compile the attached serial mouse driver.

Then do a if compiled all as modules. Otherwise if they are all built in
just run inputattach. 

insmod input.o
insmod serio.o
insmod serport.o
insmod sermouse.o
insmod mousedev.o

inputattach -bare /dev/ttySA0 &


Now if make sure you have a /dev/input/mice device. If not just do a

cd /dev
mkdir input
mknod input/mice c 13 63

Now for your XFree86 4.0 server config file have the following:

Section "InputDevice"
  Driver        "mouse"
  Identifier    "Mouse[1]"
  Option        "Device"        "/dev/input/mice"
  Option        "Emulate3Buttons"       "on"
  Option        "Name"          "AutoDetected"
  Option        "Protocol"      "imps/2"
  Option        "Vendor"        "AutoDetected"
EndSection

Now you should be ready to go.