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Full Discussion: Missing serial port
Top Forums UNIX for Dummies Questions & Answers Missing serial port Post 302420073 by Corona688 on Monday 10th of May 2010 01:17:19 PM
Old 05-10-2010
Do the other three detected ports even work? It may be automatically adding the four "standard" PC serial ports with their hardwired addresses and ISA interrupts, which would only find the ports on the motherboard... Your card might not have been detected at all. You may need to configure your kernel to have the correct module for it.

What does it show in lspci as?
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RINGSTAT(1)						    Voicetronix Telephony Tools 					       RINGSTAT(1)

NAME
ringstat - Perform a simple test of FXS (station) port ring and audio paths. SYNOPSIS
ringstat [options] DESCRIPTION
The ringstat utility performs a simple test of FXS port ring circuits. It exercises the card base functions including the audio path, ring and hook detection. The ports will ring while on hook, play 10 seconds of dial tone if taken off hook, then ring again when they go back on hook. Press any key (on the keyboard) to end this test. OPTIONS
The following options are available: --help, -? Show summary of options. --card number Explicitly select the card to test. Default is card 0. --module number Explicitly select the module of a card to test. Default assumes 8 ports on the card to test. Valid values here are presently 0 or 1. It also assumes all modules have 4 ports. This option may change in the future. SEE ALSO
vpbecho(1), measerl(1) AUTHOR
Ron Lee, Peter Wintulich, David Rowe, Voicetronix <support@voicetronix.com.au> This manual page was written by Ron <ron@debian.org>, for the Debian project (but may be used by others). VPB driver package Jan 4, 2007 RINGSTAT(1)
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