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Full Discussion: Strange Behavior on COM2
Top Forums UNIX for Dummies Questions & Answers Strange Behavior on COM2 Post 302082496 by Elwood51 on Wednesday 2nd of August 2006 03:31:25 PM
Old 08-02-2006
Strange Behavior on COM2

Hi,

I have a problem with a new touch screen controller that I am trying to use on a SCO 3.0 system. THe touch screen controller only wants to talk at 9600baud. I have updated /etc/inittab per the manual and also edited /usr/lib/event/devices to use 9600 baud.

The only way I can get the touchscreen to communicate is to plug a serial mouse into the COM2 port, then replace it with the touchscreen cable. The problem is, every time I reboot, the touch screen quits working. It is almost as if the mouse is forcing the COM port to 9600 baud, but the touch screen controller itself won't do that.

How is SCO configuring the port differently based on whether a mouse is plugged in or the touch screen controller?

Any advice would be appreciated,

Thanks,
 

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inputattach(1)						      General Commands Manual						    inputattach(1)

NAME
inputattach - attach a serial line to an input-layer device SYNOPSIS
inputattach [--daemon] [--always] [--noinit] [--baud baud>] <mode> <device> DESCRIPTION
inputattach attaches a serial line to an input-layer device via a line discipline. Exactly one of the available modes must be specified on the command line. OPTIONS
--daemon Forks into the background. --always Ignore initialization failures when attaching the device. --noinit Skip device initialization. --baud Specify the baud rate to use. (This is only necessary if the default rate is incorrect.) Modes -dump, --dump Just enable device . -elo3b, --elo261-280 ELO Touchscreen, 3-byte mode. -elo4b, --elo271-140 ELO touchscreen, 4-byte mode. -elo6b, --elo4002 ELO touchscreen, 6-byte mode. -elo, --elotouch ELO touchscreen, 10-byte mode. -fjt, --fujitsu Fujitsu serial touchscreen. -ipaq, --h3600ts Ipaq h3600 touchscreen. -ifor, --iforce I-Force joystick or wheel. -ms3, --intellimouse Microsoft IntelliMouse. -lk, --lkkbd DEC LK201 / LK401 keyboards. -mag, --magellan Magellan / SpaceMouse. -bare, --microsoft 2-button Microsoft mouse. -mmw, --mmwheel Logitech mouse with 4-5 buttons or a wheel. -mman, --mouseman 3-button Logitech / Genius mouse. -msc, --mousesystems 3-button Mouse Systems mouse. -ms, --mshack 3-button mouse in Microsoft mode. -mtouch, --mtouch MicroTouch (3M) touchscreen. -newt, --newtonkbd Newton keyboard. -pm3k, --penmount3000 Penmount 3000 touchscreen. -pm6k, --penmount6000 Penmount 6000 touchscreen. -pmm1, --penmount6250 Penmount 6250 touchscreen. -pm9k, --penmount9000 Penmount 9000 touchscreen. -ps2ser, --ps2serkbd PS/2 via serial keyboard. -sbl, --spaceball SpaceBall 2003 / 3003 / 4000 FLX. -orb, --spaceorb SpaceOrb 360 / SpaceBall Avenger. -sting, --stinger Gravis Stinger. -ipaqkbd, --stowawaykbd Stowaway keyboard. -skb, --sunkbd Sun Type 4 and Type 5 keyboards. -sun, --sunmouse 3-button Sun mouse. -taos, --taos-evm TAOS evaluation module. -tsc, --tsc TSC-10/25/40 touch screen. -t213, --touchit213 Sahara Touch-iT213 Tablet PC. -tr, --touchright Touchright serial touchscreen. -tw, --touchwin Touchwindow serial touchscreen. -twidjoy, --twiddler-joy Handykey Twiddler used as a joystick. -twid, --twiddler Handykey Twiddler chording keyboard. -vs, --vsxxx-aa DEC VSXXX-AA / VSXXX-GA mouse and VSXXX-A tablet. -w8001, --w8001 Wacom W8001 pen and/or touch devices. The default baud rate, 38400bps, allows for touch-only or pen and touch devices; for pen-only devices, "--baud 19200" must be specified. -war, --warrior WingMan Warrior. -zhen, --zhen-hua Zhen Hua 5-byte protocol. AUTHORS
inputattach was written by Vojtech Pavlik and Arndt Schoenewald, and improved by many others; see the linuxconsole tools documentation for details. This manual page was written by Stephen Kitt <steve@sk2.org>, for the Debian GNU/Linux system (but may be used by others). inputattach August 9, 2011 inputattach(1)
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