CPU
Intel Ultra Low Voltage Celeron/ Low Voltage Pentium III

System Chipset
VT8605 / VT82C686

Display
S3 ProSavage PN133
ProSavage4 is Supported by XFree86 4.3.0 (savage_drv.o)

Audio
VT 82C686 supports AC97 2.0
Audio is supported by Redhat 9.0 ( via82cxxx_audio.o )

Ethernet
RTL 8139
8139 is supported by Redhat 9.0 ( 8139too.o)

PCMCIA
RICOH RL5C478
RL5C478 is supported by Redhat 9.0 (yenta_socket.o)

Serial Port manually re-config
Because PPC-123T has 4 serial ports, but the com3 and com4 in RH9 use the same interrupt with com1 and com2. To change the settings of serial ports, generate the script at /etc/rc.serial
/etc/rc.serial :

#!/bin/sh

SETSERIAL="/bin/setserial -b"

echo "RE-configuring COM3 and COM4 to use proper IRQs"
${SETSERIAL} /dev/ttyS2 uart 16550 port 0x3E8 irq 10
${SETSERIAL} /dev/ttyS3 uart 16550 port 0x2E8 irq 5


IrDA
Procedures to achieve IrDA in Redhat 9.0

  1. Go in the bios, In Integrated Peripherals->
    bios configuration :

    Set UART 2 Mode to HPSIR
    Set IR Function Duplex to Full
    Set Tx,RX inverting enable to No, Yes

  2. Login as root, execute irattach /dev/ttyS1 -s


Elo Touch Screen
Edit the XF86Config file, found in /etc/X11 directory.

  1. Add the following line to the "ServerLayout" Section:

    InputDevice "touchscreen0" "SendCoreEvents"

  2. Add the following section to the "InputDevice" section:

    Section "InputDevice"
                Indetifier "touchscreen0"
                Driver "elographics"
                Option "Device" "/dev/ttyS3"
                Option "DeviceName" "touchscreen"
                Option "screenno" "0"
                Option "AlwaysCore"
                OPtion "MinX" "3640"
                Option "MinY" "3506"
                Option "MaxX" "419"
                Option "MaxY" "479"
                Option "SendCoreEvents" "yes"
    Endsection

    Touchscreen Calibration
    In RH9, the default calibration values in the XF86Config file are MinX 600, MaxX 3600, MinY 600, MaxY 3600.
    But the default calibration values need to be manually adjusted for the touchscreen to be calibrated.
    Please refer this technical reference
    http://www.elotouch.com/Support/linux.asp