Re: RS232 GSM Modem

From: toabctl <toabctl googlemail com>
To: Dan Williams <dcbw redhat com>
Cc: networkmanager-list gnome org
Subject: Re: RS232 GSM Modem
Date: Mon, 3 May 2010 10:58:25 +0200

2010/5/2 Dan Williams <dcbw redhat com>

On Fri, 2010-04-30 at 14:05 +0200, toabctl wrote:
> 2010/4/29 Dan Williams <dcbw redhat com>
> On Thu, 2010-04-29 at 09:53 +0200, toabctl wrote:
> >
> >
> > 2010/4/28 Dan Williams <dcbw redhat com>
> > On Wed, 2010-04-28 at 09:37 +0200, toabctl wrote:
> > > 1) How does network-manager detect that the modem
> is
> > connected? Or how
> > > can i tell networkmanager on which port the modem
> is
> > attached? I use a
> > > rs232<->usb adapter so the port is /dev/ttyUSB0 .
> >
> >
> > ModemManager uses udev for device detection. It
> listens for
> > udev events
> > (which you can also listen for with udevmonitor) and
> when it
> > receives a
> > notification of a new serial port, it will inspect
> that port
> > and attempt
> > to probe it.
> >
> > How does ModemManager probe the port? I want to use modem
> manager also
> > with a rs232 device and there are no uevents because rs232
> has no
> > hotplug. but i could emit a uevent "by hand".
>
>
> At the moment we don't probe platform devices for a few
> reasons, one
> that (a) the code isn't there, and (b) older devices like
> those
> connected to platform serial ports on normal PCs often get
> upset
> precisely because they are older and either aren't modems, or
> aren't
> standards compliant in any way.
>
> But check out this commit:
>
> commit 1864d8da0766e615c37a13f30bcacb72d381aa69
> Author: Dan Williams <dcbw redhat com>
> Date: Thu Apr 29 12:17:56 2010 -0700
>
> core: add platform device support and whitelist
>
> and see if that works for you. It uses a whitelist for
> platform
> drivers. Let me know!
>
> does not work for me. But i'm not sure hot to test it. i just use the
> python script from test/mm-test.py and the result is: "no modems
> found". But the device is available (checked with minicom)
> and /lib/udev/rules.d/77-mm-platform-serial-whitelist.rules is
> available.
>
> What to do next? Do you need more information?

Yeah, what logs do you get from 'modem-manager --debug', and can you run
the lsudev tool in tests/ like this for me when the device is connected?

lsudev tty

Thanks!
Dan

Hi Dan,

see attachments for the 'lsudev tty' and 'modem-manager --debug' . The Modem is a Siemens TC63i connected to /dev/ttyS1 .

A minicom session looks like this (Baudrate 115200; 8N1; Hardware Flow Control: No; Software Flow Control: No;)

### BEGIN MINICOM ###
at
OK
at&v
ACTIVE PROFILE:
E1 Q0 V1 X4 &C0 &D2 &S0 \Q0 \V1
S0:000 S3:013 S4:010 S5:008 S6:000 S7:060 S8:000 S10:002 S18:000
+CBST: 7,0,1
+CRLP: 61,61,78,6
+CR: 0
+FCLASS: 0
+ICF: 3
+IFC: 0,0
+ILRR: 0
+IPR: 115200
+CMEE: 0
^SCKS: 0,1
^SSET: 0

OK

### END MINICOM ###

Hope this helps,

Cheers

Tom

> Cheers,
>
> Tom
>
>
> Dan
>
>
> > The information about the device ( /dev/ttyS1 ):
> >
> > # udevadm info --query=all -n /dev/ttyS1
> > P: /devices/platform/atmel_usart.1/tty/ttyS1
> > N: ttyS1
> > S: char/4:65
> > E: UDEV_LOG=3
> > E: DEVPATH=/devices/platform/atmel_usart.1/tty/ttyS1
> > E: MAJOR=4
> > E: MINOR=65
> > E: DEVNAME=/dev/ttyS1
> > E: SUBSYSTEM=tty
> > E: DEVLINKS=/dev/char/4:65
> >
> > # udevadm info --query=all -n /dev/ttyS1 --attribute-walk
> > ...
> > looking at device
> '/devices/platform/atmel_usart.1/tty/ttyS1':
> > KERNEL=="ttyS1"
> > SUBSYSTEM=="tty"
> > DRIVER==""
> >
> > looking at parent device
> '/devices/platform/atmel_usart.1':
> > KERNELS=="atmel_usart.1"
> > SUBSYSTEMS=="platform"
> > DRIVERS=="atmel_usart"
> > ATTRS{modalias}=="platform:atmel_usart"
> >
> > looking at parent device '/devices/platform':
> > KERNELS=="platform"
> > SUBSYSTEMS==""
> > DRIVERS==""
> >
> >
> > How can i use this port with ModemManager? The modem is
> connected and
> > AT-Commands works.
> >
> > There are a number of requirements of the port
> though; it
> > verifies that the kernel has assigned a driver name
> to the
> > port or one
> > of the port's parents, and it attempts to grab the
> port's
> > physical
> > device. Given that it's USB, it *should* work. But
> if it
> > doesn't, and
> > you have a chance to grab the ModemManager source
> [1], there's
> > a tool
> > called 'lsudev' in the test/ directory that can give
> us an
> > idea of the
> > udev-provided information of the device.
> >
> > i guess 'lsudev' does the same as my 2 commands with
> 'udevadm', right?
> > or does 'lsudev' something more special?
> >
> >
> > > 2) How does the connection-config looks like?
> >
> >
> > ModemManager is just a tool to control the modem, it
> doesn't
> > store any
> > configuration about it. The configuration is
> provided by a
> > program that
> > tells ModemManager what to do. There are a few ways
> to do
> > that;
> > NetworkManager provides a general modem control
> solution, but
> > you can
> > also write your own app that uses D-Bus to tell
> ModemManager
> > what to do
> > with the modem. See test/mm-test.py for a short
> example of
> > how to use
> > python and D-Bus to make MM connect the modem and
> get
> > information out of
> > it.
> >
> > ah. that's great. i need to control the modem over a
> web-interface so
> > no nm-applet available.
> >
> >
> > Cheers,
> >
> > Tom
> >
>
>
>
>

------------------------------------------------------
Name:     ttyS0
Type:     (null)
Subsys:   tty
Number:   0
Path:     /sys/devices/platform/atmel_usart.0/tty/ttyS0
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/ttyS0

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/platform/atmel_usart.0/tty/ttyS0
  MAJOR:     4
  MINOR:     64
  DEVNAME:   /dev/ttyS0
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:64

    ------------------------------------------------------
    Name:     atmel_usart.0
    Type:     (null)
    Subsys:   platform
    Number:   0
    Path:     /sys/devices/platform/atmel_usart.0
    Driver:   atmel_usart
    Action:   (null)
    Seq Num:  0
    Dev File: (null)
    
    Properties:
      UDEV_LOG:                    3
      DEVPATH:                     /devices/platform/atmel_usart.0
      DRIVER:                      atmel_usart
      MODALIAS:                    platform:atmel_usart
      SUBSYSTEM:                   platform
      ID_MM_PLATFORM_DRIVER_PROBE: 1
    
        ------------------------------------------------------
        Name:     platform
        Type:     (null)
        Subsys:   (null)
        Number:   (null)
        Path:     /sys/devices/platform
        Driver:   (null)
        Action:   (null)
        Seq Num:  0
        Dev File: (null)
        
        Properties:
          UDEV_LOG: 3
          DEVPATH:  /devices/platform
        

------------------------------------------------------
Name:     ttyS1
Type:     (null)
Subsys:   tty
Number:   1
Path:     /sys/devices/platform/atmel_usart.1/tty/ttyS1
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/ttyS1

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/platform/atmel_usart.1/tty/ttyS1
  MAJOR:     4
  MINOR:     65
  DEVNAME:   /dev/ttyS1
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:65

    ------------------------------------------------------
    Name:     atmel_usart.1
    Type:     (null)
    Subsys:   platform
    Number:   1
    Path:     /sys/devices/platform/atmel_usart.1
    Driver:   atmel_usart
    Action:   (null)
    Seq Num:  0
    Dev File: (null)
    
    Properties:
      UDEV_LOG:                    3
      DEVPATH:                     /devices/platform/atmel_usart.1
      DRIVER:                      atmel_usart
      MODALIAS:                    platform:atmel_usart
      SUBSYSTEM:                   platform
      ID_MM_PLATFORM_DRIVER_PROBE: 1
    
        ------------------------------------------------------
        Name:     platform
        Type:     (null)
        Subsys:   (null)
        Number:   (null)
        Path:     /sys/devices/platform
        Driver:   (null)
        Action:   (null)
        Seq Num:  0
        Dev File: (null)
        
        Properties:
          UDEV_LOG: 3
          DEVPATH:  /devices/platform
        

------------------------------------------------------
Name:     ttyS2
Type:     (null)
Subsys:   tty
Number:   2
Path:     /sys/devices/platform/atmel_usart.2/tty/ttyS2
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/ttyS2

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/platform/atmel_usart.2/tty/ttyS2
  MAJOR:     4
  MINOR:     66
  DEVNAME:   /dev/ttyS2
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:66

    ------------------------------------------------------
    Name:     atmel_usart.2
    Type:     (null)
    Subsys:   platform
    Number:   2
    Path:     /sys/devices/platform/atmel_usart.2
    Driver:   atmel_usart
    Action:   (null)
    Seq Num:  0
    Dev File: (null)
    
    Properties:
      UDEV_LOG:                    3
      DEVPATH:                     /devices/platform/atmel_usart.2
      DRIVER:                      atmel_usart
      MODALIAS:                    platform:atmel_usart
      SUBSYSTEM:                   platform
      ID_MM_PLATFORM_DRIVER_PROBE: 1
    
        ------------------------------------------------------
        Name:     platform
        Type:     (null)
        Subsys:   (null)
        Number:   (null)
        Path:     /sys/devices/platform
        Driver:   (null)
        Action:   (null)
        Seq Num:  0
        Dev File: (null)
        
        Properties:
          UDEV_LOG: 3
          DEVPATH:  /devices/platform
        

------------------------------------------------------
Name:     console
Type:     (null)
Subsys:   tty
Number:   (null)
Path:     /sys/devices/virtual/tty/console
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/console

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/console
  MAJOR:     5
  MINOR:     1
  DEVNAME:   /dev/console
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/5:1


------------------------------------------------------
Name:     ptmx
Type:     (null)
Subsys:   tty
Number:   (null)
Path:     /sys/devices/virtual/tty/ptmx
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/ptmx

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/ptmx
  MAJOR:     5
  MINOR:     2
  DEVNAME:   /dev/ptmx
  DEVMODE:   0666
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/5:2


------------------------------------------------------
Name:     tty
Type:     (null)
Subsys:   tty
Number:   (null)
Path:     /sys/devices/virtual/tty/tty
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty
  MAJOR:     5
  MINOR:     0
  DEVNAME:   /dev/tty
  DEVMODE:   0666
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/5:0


------------------------------------------------------
Name:     tty0
Type:     (null)
Subsys:   tty
Number:   0
Path:     /sys/devices/virtual/tty/tty0
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty0

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty0
  MAJOR:     4
  MINOR:     0
  DEVNAME:   /dev/tty0
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:0


------------------------------------------------------
Name:     tty1
Type:     (null)
Subsys:   tty
Number:   1
Path:     /sys/devices/virtual/tty/tty1
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty1

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty1
  MAJOR:     4
  MINOR:     1
  DEVNAME:   /dev/tty1
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:1


------------------------------------------------------
Name:     tty10
Type:     (null)
Subsys:   tty
Number:   10
Path:     /sys/devices/virtual/tty/tty10
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty10

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty10
  MAJOR:     4
  MINOR:     10
  DEVNAME:   /dev/tty10
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:10


------------------------------------------------------
Name:     tty11
Type:     (null)
Subsys:   tty
Number:   11
Path:     /sys/devices/virtual/tty/tty11
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty11

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty11
  MAJOR:     4
  MINOR:     11
  DEVNAME:   /dev/tty11
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:11


------------------------------------------------------
Name:     tty12
Type:     (null)
Subsys:   tty
Number:   12
Path:     /sys/devices/virtual/tty/tty12
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty12

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty12
  MAJOR:     4
  MINOR:     12
  DEVNAME:   /dev/tty12
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:12


------------------------------------------------------
Name:     tty13
Type:     (null)
Subsys:   tty
Number:   13
Path:     /sys/devices/virtual/tty/tty13
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty13

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty13
  MAJOR:     4
  MINOR:     13
  DEVNAME:   /dev/tty13
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:13


------------------------------------------------------
Name:     tty14
Type:     (null)
Subsys:   tty
Number:   14
Path:     /sys/devices/virtual/tty/tty14
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty14

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty14
  MAJOR:     4
  MINOR:     14
  DEVNAME:   /dev/tty14
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:14


------------------------------------------------------
Name:     tty15
Type:     (null)
Subsys:   tty
Number:   15
Path:     /sys/devices/virtual/tty/tty15
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty15

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty15
  MAJOR:     4
  MINOR:     15
  DEVNAME:   /dev/tty15
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:15


------------------------------------------------------
Name:     tty16
Type:     (null)
Subsys:   tty
Number:   16
Path:     /sys/devices/virtual/tty/tty16
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty16

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty16
  MAJOR:     4
  MINOR:     16
  DEVNAME:   /dev/tty16
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:16


------------------------------------------------------
Name:     tty17
Type:     (null)
Subsys:   tty
Number:   17
Path:     /sys/devices/virtual/tty/tty17
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty17

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty17
  MAJOR:     4
  MINOR:     17
  DEVNAME:   /dev/tty17
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:17


------------------------------------------------------
Name:     tty18
Type:     (null)
Subsys:   tty
Number:   18
Path:     /sys/devices/virtual/tty/tty18
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty18

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty18
  MAJOR:     4
  MINOR:     18
  DEVNAME:   /dev/tty18
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:18


------------------------------------------------------
Name:     tty19
Type:     (null)
Subsys:   tty
Number:   19
Path:     /sys/devices/virtual/tty/tty19
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty19

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty19
  MAJOR:     4
  MINOR:     19
  DEVNAME:   /dev/tty19
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:19


------------------------------------------------------
Name:     tty2
Type:     (null)
Subsys:   tty
Number:   2
Path:     /sys/devices/virtual/tty/tty2
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty2

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty2
  MAJOR:     4
  MINOR:     2
  DEVNAME:   /dev/tty2
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:2


------------------------------------------------------
Name:     tty20
Type:     (null)
Subsys:   tty
Number:   20
Path:     /sys/devices/virtual/tty/tty20
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty20

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty20
  MAJOR:     4
  MINOR:     20
  DEVNAME:   /dev/tty20
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:20


------------------------------------------------------
Name:     tty21
Type:     (null)
Subsys:   tty
Number:   21
Path:     /sys/devices/virtual/tty/tty21
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty21

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty21
  MAJOR:     4
  MINOR:     21
  DEVNAME:   /dev/tty21
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:21


------------------------------------------------------
Name:     tty22
Type:     (null)
Subsys:   tty
Number:   22
Path:     /sys/devices/virtual/tty/tty22
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty22

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty22
  MAJOR:     4
  MINOR:     22
  DEVNAME:   /dev/tty22
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:22


------------------------------------------------------
Name:     tty23
Type:     (null)
Subsys:   tty
Number:   23
Path:     /sys/devices/virtual/tty/tty23
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty23

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty23
  MAJOR:     4
  MINOR:     23
  DEVNAME:   /dev/tty23
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:23


------------------------------------------------------
Name:     tty24
Type:     (null)
Subsys:   tty
Number:   24
Path:     /sys/devices/virtual/tty/tty24
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty24

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty24
  MAJOR:     4
  MINOR:     24
  DEVNAME:   /dev/tty24
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:24


------------------------------------------------------
Name:     tty25
Type:     (null)
Subsys:   tty
Number:   25
Path:     /sys/devices/virtual/tty/tty25
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty25

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty25
  MAJOR:     4
  MINOR:     25
  DEVNAME:   /dev/tty25
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:25


------------------------------------------------------
Name:     tty26
Type:     (null)
Subsys:   tty
Number:   26
Path:     /sys/devices/virtual/tty/tty26
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty26

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty26
  MAJOR:     4
  MINOR:     26
  DEVNAME:   /dev/tty26
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:26


------------------------------------------------------
Name:     tty27
Type:     (null)
Subsys:   tty
Number:   27
Path:     /sys/devices/virtual/tty/tty27
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty27

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty27
  MAJOR:     4
  MINOR:     27
  DEVNAME:   /dev/tty27
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:27


------------------------------------------------------
Name:     tty28
Type:     (null)
Subsys:   tty
Number:   28
Path:     /sys/devices/virtual/tty/tty28
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty28

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty28
  MAJOR:     4
  MINOR:     28
  DEVNAME:   /dev/tty28
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:28


------------------------------------------------------
Name:     tty29
Type:     (null)
Subsys:   tty
Number:   29
Path:     /sys/devices/virtual/tty/tty29
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty29

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty29
  MAJOR:     4
  MINOR:     29
  DEVNAME:   /dev/tty29
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:29


------------------------------------------------------
Name:     tty3
Type:     (null)
Subsys:   tty
Number:   3
Path:     /sys/devices/virtual/tty/tty3
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty3

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty3
  MAJOR:     4
  MINOR:     3
  DEVNAME:   /dev/tty3
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:3


------------------------------------------------------
Name:     tty30
Type:     (null)
Subsys:   tty
Number:   30
Path:     /sys/devices/virtual/tty/tty30
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty30

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty30
  MAJOR:     4
  MINOR:     30
  DEVNAME:   /dev/tty30
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:30


------------------------------------------------------
Name:     tty31
Type:     (null)
Subsys:   tty
Number:   31
Path:     /sys/devices/virtual/tty/tty31
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty31

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty31
  MAJOR:     4
  MINOR:     31
  DEVNAME:   /dev/tty31
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:31


------------------------------------------------------
Name:     tty32
Type:     (null)
Subsys:   tty
Number:   32
Path:     /sys/devices/virtual/tty/tty32
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty32

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty32
  MAJOR:     4
  MINOR:     32
  DEVNAME:   /dev/tty32
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:32


------------------------------------------------------
Name:     tty33
Type:     (null)
Subsys:   tty
Number:   33
Path:     /sys/devices/virtual/tty/tty33
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty33

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty33
  MAJOR:     4
  MINOR:     33
  DEVNAME:   /dev/tty33
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:33


------------------------------------------------------
Name:     tty34
Type:     (null)
Subsys:   tty
Number:   34
Path:     /sys/devices/virtual/tty/tty34
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty34

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty34
  MAJOR:     4
  MINOR:     34
  DEVNAME:   /dev/tty34
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:34


------------------------------------------------------
Name:     tty35
Type:     (null)
Subsys:   tty
Number:   35
Path:     /sys/devices/virtual/tty/tty35
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty35

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty35
  MAJOR:     4
  MINOR:     35
  DEVNAME:   /dev/tty35
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:35


------------------------------------------------------
Name:     tty36
Type:     (null)
Subsys:   tty
Number:   36
Path:     /sys/devices/virtual/tty/tty36
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty36

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty36
  MAJOR:     4
  MINOR:     36
  DEVNAME:   /dev/tty36
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:36


------------------------------------------------------
Name:     tty37
Type:     (null)
Subsys:   tty
Number:   37
Path:     /sys/devices/virtual/tty/tty37
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty37

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty37
  MAJOR:     4
  MINOR:     37
  DEVNAME:   /dev/tty37
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:37


------------------------------------------------------
Name:     tty38
Type:     (null)
Subsys:   tty
Number:   38
Path:     /sys/devices/virtual/tty/tty38
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty38

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty38
  MAJOR:     4
  MINOR:     38
  DEVNAME:   /dev/tty38
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:38


------------------------------------------------------
Name:     tty39
Type:     (null)
Subsys:   tty
Number:   39
Path:     /sys/devices/virtual/tty/tty39
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty39

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty39
  MAJOR:     4
  MINOR:     39
  DEVNAME:   /dev/tty39
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:39


------------------------------------------------------
Name:     tty4
Type:     (null)
Subsys:   tty
Number:   4
Path:     /sys/devices/virtual/tty/tty4
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty4

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty4
  MAJOR:     4
  MINOR:     4
  DEVNAME:   /dev/tty4
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:4


------------------------------------------------------
Name:     tty40
Type:     (null)
Subsys:   tty
Number:   40
Path:     /sys/devices/virtual/tty/tty40
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty40

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty40
  MAJOR:     4
  MINOR:     40
  DEVNAME:   /dev/tty40
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:40


------------------------------------------------------
Name:     tty41
Type:     (null)
Subsys:   tty
Number:   41
Path:     /sys/devices/virtual/tty/tty41
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty41

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty41
  MAJOR:     4
  MINOR:     41
  DEVNAME:   /dev/tty41
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:41


------------------------------------------------------
Name:     tty42
Type:     (null)
Subsys:   tty
Number:   42
Path:     /sys/devices/virtual/tty/tty42
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty42

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty42
  MAJOR:     4
  MINOR:     42
  DEVNAME:   /dev/tty42
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:42


------------------------------------------------------
Name:     tty43
Type:     (null)
Subsys:   tty
Number:   43
Path:     /sys/devices/virtual/tty/tty43
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty43

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty43
  MAJOR:     4
  MINOR:     43
  DEVNAME:   /dev/tty43
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:43


------------------------------------------------------
Name:     tty44
Type:     (null)
Subsys:   tty
Number:   44
Path:     /sys/devices/virtual/tty/tty44
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty44

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty44
  MAJOR:     4
  MINOR:     44
  DEVNAME:   /dev/tty44
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:44


------------------------------------------------------
Name:     tty45
Type:     (null)
Subsys:   tty
Number:   45
Path:     /sys/devices/virtual/tty/tty45
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty45

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty45
  MAJOR:     4
  MINOR:     45
  DEVNAME:   /dev/tty45
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:45


------------------------------------------------------
Name:     tty46
Type:     (null)
Subsys:   tty
Number:   46
Path:     /sys/devices/virtual/tty/tty46
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty46

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty46
  MAJOR:     4
  MINOR:     46
  DEVNAME:   /dev/tty46
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:46


------------------------------------------------------
Name:     tty47
Type:     (null)
Subsys:   tty
Number:   47
Path:     /sys/devices/virtual/tty/tty47
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty47

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty47
  MAJOR:     4
  MINOR:     47
  DEVNAME:   /dev/tty47
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:47


------------------------------------------------------
Name:     tty48
Type:     (null)
Subsys:   tty
Number:   48
Path:     /sys/devices/virtual/tty/tty48
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty48

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty48
  MAJOR:     4
  MINOR:     48
  DEVNAME:   /dev/tty48
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:48


------------------------------------------------------
Name:     tty49
Type:     (null)
Subsys:   tty
Number:   49
Path:     /sys/devices/virtual/tty/tty49
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty49

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty49
  MAJOR:     4
  MINOR:     49
  DEVNAME:   /dev/tty49
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:49


------------------------------------------------------
Name:     tty5
Type:     (null)
Subsys:   tty
Number:   5
Path:     /sys/devices/virtual/tty/tty5
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty5

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty5
  MAJOR:     4
  MINOR:     5
  DEVNAME:   /dev/tty5
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:5


------------------------------------------------------
Name:     tty50
Type:     (null)
Subsys:   tty
Number:   50
Path:     /sys/devices/virtual/tty/tty50
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty50

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty50
  MAJOR:     4
  MINOR:     50
  DEVNAME:   /dev/tty50
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:50


------------------------------------------------------
Name:     tty51
Type:     (null)
Subsys:   tty
Number:   51
Path:     /sys/devices/virtual/tty/tty51
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty51

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty51
  MAJOR:     4
  MINOR:     51
  DEVNAME:   /dev/tty51
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:51


------------------------------------------------------
Name:     tty52
Type:     (null)
Subsys:   tty
Number:   52
Path:     /sys/devices/virtual/tty/tty52
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty52

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty52
  MAJOR:     4
  MINOR:     52
  DEVNAME:   /dev/tty52
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:52


------------------------------------------------------
Name:     tty53
Type:     (null)
Subsys:   tty
Number:   53
Path:     /sys/devices/virtual/tty/tty53
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty53

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty53
  MAJOR:     4
  MINOR:     53
  DEVNAME:   /dev/tty53
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:53


------------------------------------------------------
Name:     tty54
Type:     (null)
Subsys:   tty
Number:   54
Path:     /sys/devices/virtual/tty/tty54
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty54

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty54
  MAJOR:     4
  MINOR:     54
  DEVNAME:   /dev/tty54
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:54


------------------------------------------------------
Name:     tty55
Type:     (null)
Subsys:   tty
Number:   55
Path:     /sys/devices/virtual/tty/tty55
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty55

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty55
  MAJOR:     4
  MINOR:     55
  DEVNAME:   /dev/tty55
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:55


------------------------------------------------------
Name:     tty56
Type:     (null)
Subsys:   tty
Number:   56
Path:     /sys/devices/virtual/tty/tty56
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty56

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty56
  MAJOR:     4
  MINOR:     56
  DEVNAME:   /dev/tty56
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:56


------------------------------------------------------
Name:     tty57
Type:     (null)
Subsys:   tty
Number:   57
Path:     /sys/devices/virtual/tty/tty57
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty57

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty57
  MAJOR:     4
  MINOR:     57
  DEVNAME:   /dev/tty57
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:57


------------------------------------------------------
Name:     tty58
Type:     (null)
Subsys:   tty
Number:   58
Path:     /sys/devices/virtual/tty/tty58
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty58

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty58
  MAJOR:     4
  MINOR:     58
  DEVNAME:   /dev/tty58
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:58


------------------------------------------------------
Name:     tty59
Type:     (null)
Subsys:   tty
Number:   59
Path:     /sys/devices/virtual/tty/tty59
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty59

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty59
  MAJOR:     4
  MINOR:     59
  DEVNAME:   /dev/tty59
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:59


------------------------------------------------------
Name:     tty6
Type:     (null)
Subsys:   tty
Number:   6
Path:     /sys/devices/virtual/tty/tty6
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty6

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty6
  MAJOR:     4
  MINOR:     6
  DEVNAME:   /dev/tty6
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:6


------------------------------------------------------
Name:     tty60
Type:     (null)
Subsys:   tty
Number:   60
Path:     /sys/devices/virtual/tty/tty60
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty60

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty60
  MAJOR:     4
  MINOR:     60
  DEVNAME:   /dev/tty60
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:60


------------------------------------------------------
Name:     tty61
Type:     (null)
Subsys:   tty
Number:   61
Path:     /sys/devices/virtual/tty/tty61
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty61

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty61
  MAJOR:     4
  MINOR:     61
  DEVNAME:   /dev/tty61
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:61


------------------------------------------------------
Name:     tty62
Type:     (null)
Subsys:   tty
Number:   62
Path:     /sys/devices/virtual/tty/tty62
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty62

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty62
  MAJOR:     4
  MINOR:     62
  DEVNAME:   /dev/tty62
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:62


------------------------------------------------------
Name:     tty63
Type:     (null)
Subsys:   tty
Number:   63
Path:     /sys/devices/virtual/tty/tty63
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty63

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty63
  MAJOR:     4
  MINOR:     63
  DEVNAME:   /dev/tty63
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:63


------------------------------------------------------
Name:     tty7
Type:     (null)
Subsys:   tty
Number:   7
Path:     /sys/devices/virtual/tty/tty7
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty7

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty7
  MAJOR:     4
  MINOR:     7
  DEVNAME:   /dev/tty7
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:7


------------------------------------------------------
Name:     tty8
Type:     (null)
Subsys:   tty
Number:   8
Path:     /sys/devices/virtual/tty/tty8
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty8

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty8
  MAJOR:     4
  MINOR:     8
  DEVNAME:   /dev/tty8
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:8


------------------------------------------------------
Name:     tty9
Type:     (null)
Subsys:   tty
Number:   9
Path:     /sys/devices/virtual/tty/tty9
Driver:   (null)
Action:   (null)
Seq Num:  0
Dev File: /dev/tty9

Properties:
  UDEV_LOG:  3
  DEVPATH:   /devices/virtual/tty/tty9
  MAJOR:     4
  MINOR:     9
  DEVNAME:   /dev/tty9
  SUBSYSTEM: tty
  DEVLINKS:  /dev/char/4:9

** (modem-manager:902): DEBUG: (net/usb0): port's parent platform driver is not whitelisted
** (modem-manager:902): DEBUG: (net/pan0): could not get port's parent device
** (modem-manager:902): DEBUG: <1272876774.536671> (ttyS0) device open count is 1 (open)
** (modem-manager:902): DEBUG: (ttyS0): probe requested by plugin 'Generic'
** (modem-manager:902): DEBUG: <1272876774.539309> (ttyS1) device open count is 1 (open)
** (modem-manager:902): DEBUG: (ttyS1): probe requested by plugin 'Generic'
** (modem-manager:902): DEBUG: <1272876774.541284> (ttyS2) device open count is 1 (open)
** (modem-manager:902): DEBUG: (ttyS2): probe requested by plugin 'Generic'
** (modem-manager:902): DEBUG: <1272876774.650715> (ttyS0): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876775.528199> (ttyS1): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876776.408155> (ttyS2): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876779.9102> (ttyS0): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876780.8733> (ttyS1): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876781.8747> (ttyS2): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876783.8869> (ttyS0): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876784.8740> (ttyS1): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876785.8748> (ttyS2): --> 'AT+GCAP<CR>'
** (modem-manager:902): DEBUG: <1272876787.8527> (ttyS0) device open count is 0 (close)
** (modem-manager:902): DEBUG: <1272876787.11409> (ttyS0) device open count is 1 (open)
** (modem-manager:902): DEBUG: <1272876787.12419> (ttyS0): --> 00 78 f0 7e
** (modem-manager:902): DEBUG: <1272876788.8523> (ttyS1) device open count is 0 (close)
** (modem-manager:902): DEBUG: <1272876788.10894> (ttyS1) device open count is 1 (open)
** (modem-manager:902): DEBUG: <1272876788.11779> (ttyS1): --> 00 78 f0 7e
** (modem-manager:902): DEBUG: <1272876789.8542> (ttyS2) device open count is 0 (close)
** (modem-manager:902): DEBUG: <1272876789.10686> (ttyS2) device open count is 1 (open)
** (modem-manager:902): DEBUG: <1272876789.11577> (ttyS2): --> 00 78 f0 7e
** (modem-manager:902): DEBUG: <1272876790.8650> (ttyS0): --> 00 78 f0 7e
** (modem-manager:902): DEBUG: <1272876791.8650> (ttyS1): --> 00 78 f0 7e
** (modem-manager:902): DEBUG: <1272876792.8663> (ttyS2): --> 00 78 f0 7e
** (modem-manager:902): DEBUG: <1272876793.8514> (ttyS0) device open count is 0 (close)
** (modem-manager:902): DEBUG: <1272876794.8492> (ttyS1) device open count is 0 (close)
** (modem-manager:902): DEBUG: <1272876795.8453> (ttyS2) device open count is 0 (close)

Follow-Ups:
- Re: RS232 GSM Modem
  - From: toabctl
- Re: RS232 GSM Modem
  - From: Dan Williams

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