Re: [hylafax-users] Modem not dropping DTR

[Jeffrey Ross <jeff@wisdom.bubble.org>]

I've done a little more investigating and I'm now starting to point my
finger at faxgetty (albiet probably incorrectly).

It appears as if when a call comes in, faxgetty correctly does whatever
modem controlling it needs to do and then passes the call off to either
the getty or the fax program.  What I believe is happening is faxgetty
is somehow retaining some control of the port.  This in turn is preventing
the DTR to drop since there remains 1 active process on the port. 

What I did to test this theory was after I connected (I allowed faxgetty to
accept the call and hand it off to getty) I stopped faxgetty by removing 
its entry in the inittab, and issuing an "init q".  Upon issuing an exit, I
was promptly greeted with a "NO CARRIER" on my terminal, in otherwords
DTR did get dropped.

Is there something I missed in the configuration of faxgetty?  I thought
I followed the directions.  Or are all my guesses off the mark?

HELP!!

Thanks.

Jeff

> 
> 
> The setup is as follows, hylafax-4.1beta2-5rh6.i386.rpm was installed
> and configured, I am using faxgetty with the following line in
> /etc/inittab:
> 
> d1:345:respawn:/usr/sbin/faxgetty ttyD1
> 
> Modem: Multitech MT2834
> Serial port: Digiboard PC/8e (the standard PC serial ports have been
> tried with the same results)
> 
> O.S. RedHat 6.2 (originally)
> Kernel 2.2.16
> 
> upon completion of a data call or a fax call, DTR is never dropped to
> the modem.  I have verified this not only by the light on the font of
> the modem and using &D3 command, but with a serial line monitor that
> lights up red or green when a line is high or low.
> 
> the config.ttyD1 is attached below, it is essentually unchanged from how
> the modem config set it up.
> 
> prior to receiving the call, an stty -a provides the following (with
> faxgetty running):
> 
> speed 115200 baud; rows 0; columns 0; line = 0;
> intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>;
> eol2 = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase =
> ^W;
> lnext = ^V; flush = ^O; min = 1; time = 0;
> -parenb -parodd cs8 -hupcl -cstopb cread clocal crtscts
> -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl
> -ixon
> -ixoff -iuclc -ixany -imaxbel
> -opost -olcuc -ocrnl -onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0
> bs0 vt0
> ff0
> -isig -icanon -iexten -echo -echoe -echok -echonl -noflsh -xcase -tostop
> -echoprt -echoctl -echoke
> 
> When a data call is established, the same command yields:
> 
> speed 115200 baud; rows 0; columns 0; line = 0;
> intr = ^C; quit = ^\; erase = ^H; kill = ^U; eof = ^D; eol = <undef>;
> eol2 = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase =
> ^W;
> lnext = <undef>; flush = ^O; min = 1; time = 0;
> -parenb -parodd cs8 hupcl -cstopb cread -clocal crtscts
> -ignbrk brkint ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl ixon
> -ixoff
> -iuclc ixany -imaxbel
> opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0
> vt0 ff0
> isig -icanon -iexten -echo echoe echok -echonl -noflsh -xcase -tostop
> -echoprt
> -echoctl -echoke
> 
> notice hupcl is now set differently.
> 
> If I kill faxgetty (remove the entry from inittab and do an init q) and
> then do an "stty -F /dev/ttyD1 hupcl", DTR will go low, suggestions
> please???
> 
> HELP!!!
> 
> thanks.. Jeff
> 
> LongDistancePrefix:     1
> InternationalPrefix:    011
> DialStringRules:        etc/dialrules
> ServerTracing:          1
> SessionTracing:         11
> RecvFileMode:           0600
> LogFileMode:            0600
> DeviceMode:             0600
> RingsBeforeAnswer:      1
> SpeakerVolume:          off
> GettyArgs:              "-h %l F115200 vt100"  (*NOTE* the F115200 line
> in gettydefs
> does
> LocalIdentifier:        "Jeffrey Ross"          have HUPCL set)
> ClocalAsRoot:           yes
> TagLineFont:            etc/lutRS18.pcf
> TagLineFormat:          "From %%l|%c|Page %%p of %%t"
> MaxRecvPages:           200
> #
> #
> # Modem-related stuff: should reflect modem command interface
> # and hardware connection/cabling (e.g. flow control).
> ## and hardware connection/cabling (e.g. flow control).
> #
> ModemType:              Class2          # use class 2 interface
> ModemRate:              115200          # lock rate for DCE-DTE
> communication
> ModemFlowControl:       rtscts          # default
> #
> ModemHardFlowCmd:       AT&E4           # hardware flow control
> ModemSoftFlowCmd:       AT&E5           # software flow control
> ModemSetupDTRCmd:       AT&D3           # setup so DTR drop resets modem
> ModemSetupDCDCmd:       AT&C1           # setup so DCD reflects carrier
> (or
> not)ModemSetupAACmd:    AT+FAA=1        # enable adaptive-answer in
> class 2
> #
> # NB: some models get confused by the @
> #
> ModemDialCmd:           ATDT%s@         # T for tone dialing, @ for
> silence
> #
> Class2RecvDataTrigger:  "\022"          # character sent to modem to
> start recv
> 
> -- 
> .Sig??? you want a stinkin' .Sig???
> Jeff Ross
> 973-463-0175 (home)				jeff@wisdom.bubble.org
> 
> 
> ____________________ HylaFAX(tm) Users Mailing List _______________________
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> 
> 


-- 
.Sig??? you want a stinkin' .Sig???
Jeff Ross
973-463-0175 (home)				jeff@wisdom.bubble.org


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