https://bugzilla.novell.com/show_bug.cgi?id=738952
https://bugzilla.novell.com/show_bug.cgi?id=738952#c4
--- Comment #4 from Teruel de Campo MD 2012-01-15 18:05:47 UTC ---
Greg Thxs
1. ttyS6 which is connected to the modem works OK.
2. I do not have a loopback device
3. lsof is above my head? what should I look for? should I add any options to
the lsof command?
Here an interesting finding : If I run one of the modem programs (wvdial)
first, then ttyS5 works, so it looks like you impression of <something is
blocking the tty layer> is correct. I wonder what /etc/wvdial.conf does to
unblock it?
The following shows:
- the first channel command does not work and hangs for ever so I killed them
with Ctrl-C
- second I run the wvdialconf it works as it should recognizing and configuring
the modem
- third I run again channel and now it works OK changing the channel to 42 and
echoing the result.
--------------------------------
linux-44xr:/home/tdec # channel -p /dev/ttyS5 42
^C
linux-44xr:/home/tdec # wvdialconf /etc/wvdial.conf
Editing `/etc/wvdial.conf'.
Scanning your serial ports for a modem.
ttyS0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Modem Port Scan<*1>: S1 S2 S3
ttyS4<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS4<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS4<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
ttyS5<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS5<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS5<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
ttyS6<*1>: ATQ0 V1 E1 -- OK
ttyS6<*1>: ATQ0 V1 E1 Z -- OK
ttyS6<*1>: ATQ0 V1 E1 S0=0 -- OK
ttyS6<*1>: ATQ0 V1 E1 S0=0 &C1 -- OK
ttyS6<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 -- OK
ttyS6<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
ttyS6<*1>: Modem Identifier: ATI -- 5601
ttyS6<*1>: Speed 4800: AT -- OK
ttyS6<*1>: Speed 9600: AT -- OK
ttyS6<*1>: Speed 19200: AT -- OK
ttyS6<*1>: Speed 38400: AT -- OK
ttyS6<*1>: Speed 57600: AT -- OK
ttyS6<*1>: Speed 115200: AT -- OK
ttyS6<*1>: Max speed is 115200; that should be safe.
ttyS6<*1>: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 -- OK
Found a modem on /dev/ttyS6.
Modem configuration written to /etc/wvdial.conf.
ttyS6<Info>: Speed 115200; init "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0"
linux-44xr:/home/tdec # channel -p /dev/ttyS5 42
42
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