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Top Forums Programming How to read the CTS and DSR of RS232 in Unix using C language? Post 44357 by Swing5 on Thursday 4th of December 2003 06:18:10 PM
Old 12-04-2003
How to read the CTS and DSR of RS232 in Unix using C language?

Hello to all Gurus out there,
Could you show me a source code in Unix platform using C language. I want to read the status or voltage level of the DSR and CTS.

Thanks a lot,

Swing5
 

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solterm(1)						   IPMI Serial over LAN program 						solterm(1)

NAME
solterm - An IPMI Serial over LAN program SYNOPSIS
solterm <connection parms> [-e escape_char] [-notencrypted] [-notauthenticated] [-bitrate (9600|19200|38400|57600|115200)] [-alerts (suc- ceed|defer|fail)] [-holdoff] [-ack-retries n] [-ack-timeout microseconds] [-v] [-q] DESCRIPTION
The solterm program allows a user to make a remote serial connection over IPMI. The requires that the remote system support IPMI 2.0 Serial Over LAN. OPTIONS
<connection parms> The parameters for the connection depend on the connection type. These are all described in openipmi_conparms (7) -e escape_char The character to use to escape, or exit, the program. Entering this character right after a newline is entered causes the program to go into command mode. A single character after this performs a command. The default escape character is "~" as shown below. Supported commands are: ~. Terminate the program ~B Send a serial BREAK over the connection ~F Flush all buffers ~R Assert the Ring Indicator (RI) line ~r Deassert the Ring Indicator (RI) line ~D Assert DCD and DSR lines ~d Deassert DCD and DSR lines ~C Pause the output using CTS ~c Put CTS under BMC control ~? Help on escape commands ~~ Enter the escape character twice to send it. -notencrypted Do not encrypt the SOL data going over the connection. -notauthenticated Do not do integrity checks on the SOL data going over the connection. -bitrate Set the bitrate to the given value. The default is whatever the BMC has set it to. -alerts This specifies what to do if a alert that requires a callout occurs on the line. succeed specifies that serial/modem alerts are to succeed while SoL is active. deferred specifies that serial/modem alerts are to be deferred for the duration of the SoL session. fail specifies that serial/modem alerts automatically fail during the SoL session. This is the default. -holdoff Specifies that CTS, DTR, and DSR are to be deasserted at the start of the SoL session so that the configuration may be modified before the handshake is released. -v Be more verbose. Maybe specified multiple time for more output. -q Be less verbose. Maybe specified multiple time for less output. SEE ALSO
openipmi_conparms(7) KNOWN PROBLEMS
None AUTHOR
Darius Davis <dariusd@users.sourceforge.net> OpenIPMI 05/13/03 solterm(1)
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