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Need help with serial port

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# 1  
Old 07-12-2010
Need help with serial port
Hi,

I have a external board connected to my serial port. I need to execute "shutdown -r now" command when system boot up. When system boots up it requires a username ans password. Then I need to run my command. I can use rc script but that is rebooting system before it asks for username and password. The command should
1. first give username to the device
2. secondly, it should give password
3. finally it should give "shutdown -r now" command to the board.

This script can run on the host PC and need to log the botting and rebooting messages.

Is it possible to write script on host PC to do it. I am trying to send command as data over serial but its simply echoes on the board but does execute. Please help. __________________
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LEARN ABOUT SUSE

reader.conf

READER.CONF(5)							    PC/SC Lite							    READER.CONF(5)

NAME

       reader.conf - configuration file for pcscd readers' drivers

DESCRIPTION

       The /etc/reader.conf file contains configuration information for serial and (some) PCMCIA smart card readers.

       USB readers SHALL NOT be configured using this file.  pcscd uses another mechanism to automatically load USB drivers.

SYNTAX

       The /etc/reader.conf is a regular text file. Each reader must be defined by four fields:

	FRIENDLYNAME	 TEXT_STRING
	DEVICENAME	 FILENAME
	LIBPATH 	 FILENAME
	CHANNELID	 NUMBER

       The "FRIENDLYNAME" field is an arbitrary text used to identify the reader. This text is displayed by commands like pcsc_scan(1) that prints
       the names of all the connected and detected readers.

       The "DEVICENAME" field was not used for old drivers (using the IFD handler version 2.0 or earlier). It is now  (IFD  handler  version  3.0)
       used  to  identify the physical port on which the reader is connected. This is the device name of this port. It is dependent of the OS ker-
       nel. The first serial port device is called /dev/ttyS0 under Linux and /dev/cuaa0 under FreeBSD.

       The "LIBPATH" field is the filename of the driver code. The driver is a dynamically loaded piece of code (generally a drivername.so*file).

       The "CHANNELID" is no more used for recent drivers (IFD handler 3.0) and has been superseded by "DEVICENAME". If you  have  an  old  driver
       this  field  is	used  to  indicate  the port to use. You should read your driver documentation to know what information is needed here. It
       should be the serial port number for a serial reader.

EXAMPLE

	# Gemplus GemPCTwin reader with serial communication
	# connected to the first serial port
	FRIENDLYNAME	  "GemPCTwin serial"
	DEVICENAME	  /dev/ttyS0
	LIBPATH 	  /usr/lib64/readers/serial/libccidtwin.so.0.4.1
	CHANNELID	  1

DEBUGGING

       In order to set up your /etc/reader.conf file correctly you may want to have debug messages from pcscd.	I recommend you to start pscsd	in
       the foreground and debug mode using:
	# pcscd --foreground --debug

       If  everything  seems  OK  you can use the pcsc_scan command to print the list of correctly detected readers and try to get the ATR of your
       smart cards.

AUTHOR

       Ludovic Rousseau <ludovic.rousseau@free.fr>

SEE ALSO

       pcscd(8), pcsc_scan(1)

Muscle								    August 2005 						    READER.CONF(5)