IBM 4800-C41 - Fbdev Driver Configuration; VIA Display Driver Installation and Configuration

For example, the ./elotone4sle -s DOWN -d /dev/ttyS1 -f 1000 -t 200 command configures an RS-232
serial-attached Elo touch screen to sound a 1000 Hz tone for 200 ms when a touch is first recognized but
not upon its release.
Note: USB Elo touch screen are automatically configured at startup. No additional configuration is
required.
FBdev driver configuration
This chapter provides the procedures for configuring the serial touch screen installed in these IBM Point
of Sale hardware devices:
v IBM 4694-207/247/307/347
v IBM AnyPlace Kiosk 4838-5xx/7xx/9xx
v IBM SurePOS 100 4613-1x8
v IBM SurePOS 500 4840
v IBM SurePOS 700 4800-781/741/722/7x3
By default, these terminals use the FBdev when setup, which only supports a single display.
To set the color depth and resolution of the display:
1. Launch the terminal application from Init 3 text console mode.
2. Use a text editor to add vga=nnnnn to the /boot/grub/menu.lst file, after showopts, where nnnnn is
determined by the color depth and resolution of the attached monitor, as shown in Table 4:
Table 4. VGA codes for FBdev for monitor color depth and resolution
Color depth Resolution
(values in bits) 640x480 800x600 1024x768 1280x1024
8 0x301 0x303 0x305 0x307
15 0x310 0x313 0x316 0x319
16 0x311 0x314 0x317 0x31A
24 0x312 0x315 0x318 0x31B
Alternately, you can add vga=nnnnn as a boot parameter.
VIA display driver installation and configuration
To install the VIA display driver:
1. Download the VIA video driver package from http://linux.via.com.tw/download/OEM/driver/
5.74.33.85a-sl11-47651-3-IBM.tgz.
2. Put the package in a temporary directory (for example, /tmp).
3. On the command line, enter the following:
tar -xvf 5.74.33.85a-sl11-47651-3-IBM.tgz
The package expands into the temporary directory, in a /74.33.85a-sl11-47651-3-IBM directory.
4. Follow the instructions in the /74.33.85a-sl11-47651-3-IBM/README.txt file to complete the
installation.
5. (Dual display only) Launch the terminal application from Init 3 text console mode and use a text editor
to edit the /etc/X11/xorg.conf file to suit desired dual-video and attached-monitors configurations.
Sample xorg.conf files for the supported dual-video configurations are provided with the driver
package.
6 Linux OS Configuration