Re: Unexpected COPS format

[Colin Helliwell]

> On 17 March 2017 at 19:56 Aleksander Morgado  wrote:
> 
> On Fri, Mar 17, 2017 at 6:40 PM, Dan Williams  wrote:
> 
> > I ended up with something like:
> > 
> > void
> > mm_3gpp_normalize_operator_id (gchar **id,
> >  MMModemCharset cur_charset)
> > {
> >  g_assert (id);
> > 
> > /* Some modems return the operator name as a hexadecimal string of the
> > 
> > *   bytes of the operator name as encoded by the current character set.
> > */
> > 
> > if (*id && !mm_3gpp_parse_operator_id (id, NULL, NULL, NULL)) {
> >  *id = mm_charset_take_and_convert_to_utf8 (*id, cur_charset);
> >  if (!mm_3gpp_parse_operator_id (id, NULL, NULL, NULL))
> >  g_clear_pointer (id, g_free);
> > }
> > }
> > 
> > but didn't get as far as writing testcases for it in src/tests/test-
> > modem-helpers.c. Testcases would be great, obviously.
> 
> This would be very similar to mm_3gpp_normalize_operator_name()
> already; maybe we could just have a single method for both?
> 

Happy to submit the patch below. Unsure about a testcase - I'm cross-building 
for a different target and haven't looked at building native and running tests. 
If it helps, the modem is giving
'+COPS: 0,2,"00320033003400310030",2'
for '23410'


> Colin, what's the AT+CSCS? return value that you're getting before any
> of this happens? Are you getting it reported as UCS2?
> 

The CSCS exchanges are:
--> 'AT+CSCS=?'
<-- '+CSCS: ("GSM","UCS2")'
<-- 'OK'
--> 'AT+CSCS="UCS2"'
<-- 'OK'
--> 'AT+CSCS?'
<-- '+CSCS: "UCS2"'
<-- 'OK'


diff -Nur a/src/mm-broadband-modem.c b/src/mm-broadband-modem.c
--- a/src/mm-broadband-modem.c  2017-03-20 06:36:45.210171801 +
+++ b/src/mm-broadband-modem.c  2017-03-20 07:12:16.865399207 +
@@ -3484,7 +3484,9 @@
error))
 return NULL;

-mm_dbg ("loaded Operator Code: %s", operator_code);
+mm_3gpp_normalize_operator_string (_code, MM_BROADBAND_MODEM 
(self)->priv->modem_current_charset);
+if (operator_code)
+mm_dbg ("loaded Operator Code: %s", operator_code);
 return operator_code;
 }

@@ -3525,7 +3527,7 @@
error))
 return NULL;

-mm_3gpp_normalize_operator_name (_name, MM_BROADBAND_MODEM 
(self)->priv->modem_current_charset);
+mm_3gpp_normalize_operator_string (_name, MM_BROADBAND_MODEM 
(self)->priv->modem_current_charset);
 if (operator_name)
 mm_dbg ("loaded Operator Name: %s", operator_name);
 return operator_name;
diff -Nur a/src/mm-modem-helpers.c b/src/mm-modem-helpers.c
--- a/src/mm-modem-helpers.c2017-03-20 06:36:44.890171799 +
+++ b/src/mm-modem-helpers.c2017-03-20 08:00:34.426196108 +
@@ -2980,12 +2980,12 @@
 /*/

 void
-mm_3gpp_normalize_operator_name (gchar  **operator,
- MMModemCharset   cur_charset)
+mm_3gpp_normalize_operator_string (gchar  **operator_string,
+   MMModemCharset cur_charset)
 {
-g_assert (operator);
+g_assert (operator_string);

-if (*operator == NULL)
+if (*operator_string == NULL)
 return;

 /* Some modems (Option & HSO) return the operator name as a hexadecimal
@@ -2994,19 +2994,19 @@
  */
 if (cur_charset == MM_MODEM_CHARSET_UCS2) {
 /* In this case we're already checking UTF-8 validity */
-*operator = mm_charset_take_and_convert_to_utf8 (*operator, 
MM_MODEM_CHARSET_UCS2);
+*operator_string = mm_charset_take_and_convert_to_utf8 
(*operator_string, MM_MODEM_CHARSET_UCS2);
 }
 /* Ensure the operator name is valid UTF-8 so that we can send it
  * through D-Bus and such.
  */
-else if (!g_utf8_validate (*operator, -1, NULL))
-g_clear_pointer (operator, g_free);
+else if (!g_utf8_validate (*operator_string, -1, NULL))
+g_clear_pointer (operator_string, g_free);

 /* Some modems (Novatel LTE) return the operator name as "Unknown" when
  * it fails to obtain the operator name. Return NULL in such case.
  */
-if (*operator && g_ascii_strcasecmp (*operator, "unknown") == 0)
-g_clear_pointer (operator, g_free);
+if (*operator_string && g_ascii_strcasecmp (*operator_string, "unknown") 
== 0)
+g_clear_pointer (operator_string, g_free);
 }

 /*/
diff -Nur a/src/mm-modem-helpers.h b/src/mm-modem-helpers.h
--- a/src/mm-modem-helpers.h2017-03-20 06:36:44.890171799 +
+++ b/src/mm-modem-helpers.h2017-03-20 08:01:06.514196263 +
@@ -291,8 +291,8 @@

 MMModemAccessTechnology mm_string_to_access_tech (const gchar *string);

-void mm_3gpp_normalize_operator_name (gchar  **operator,
-  MMModemCharset   cur_charset);
+void mm_3gpp_normalize_operator_string (gchar  **operator_string,
+ 

Re: AW: MC7455 not listed as usb device any more after reboot

[Dan Williams]

On Mon, 2017-03-20 at 09:45 +, Thomas Lang wrote:
> Hi Dan,
> thanks for your comments.
> I have included a trace of the working start and the reboot. I
> noticed that in the reboot case the usb 3-1.3 device is not detected
> anymore. The usb 3-1 is an ehci-pci. Would it help to reset the ehci-
> pci? And if so how would I do this.

If you rmmod anything related to ehci-hcd and then re-mode probe it and
anything else you unloaded, does that make it show up?  If so, that
would indicate a bug in the ehci driver and/or your platform support.

Dan

> Thanks a lot for any coment,
> Thomas
> 
> Cold Start
> PCEngines apu2
> coreboot build 20160311
> 4080 MB ECC DRAM
> 
> SeaBIOS (version ?-20160311_005214-0c3a223c2ee6)
> Found mainboard PC Engines PCEngines apu2
> multiboot: eax=0, ebx=0
> boot order:
> 1: /pci@i0cf8/usb@10/usb-*@1
> 2: /pci@i0cf8/usb@10/usb-*@2
> 3: /pci@i0cf8/usb@10/usb-*@3
> 4: /pci@i0cf8/usb@10/usb-*@4
> 5: /pci@i0cf8/*@14,7
> 6: /pci@i0cf8/*@11/drive@0/disk@0
> 7: /pci@i0cf8/*@11/drive@1/disk@0
> 8: /rom@genroms/pxe.rom
> 9: pxen0
> 10: scon1
> 11:
> Found 23 PCI devices (max PCI bus is 04)
> Copying SMBIOS entry point from 0xdffb7000 to 0x000f3110
> Copying ACPI RSDP from 0xdffb8000 to 0x000f30e0
> Copying MPTABLE from 0xdffdc000/dffdc010 to 0x000f2f30
> Copying PIR from 0xdffdd000 to 0x000f2f00
> Using pmtimer, ioport 0x818
> Scan for VGA option rom
> Running option rom at c000:0003
> 
> Google, Inc.
> Serial Graphics Adapter 08/22/15
> SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (wiv@coreboot
> -Virtual-Machine) Sat Aug 22 09:25:30 UTC 2015
> Term: 80x24
> IO4 0
> Turning on vga text mode console
> SeaBIOS (version ?-20160311_005214-0c3a223c2ee6)
> XHCI init on dev 00:10.0: regs @ 0xfeb22000, 4 ports, 32 slots, 32
> byte contexts
> XHCIextcap 0x1 @ feb22500
> XHCIprotocol USB  3.00, 2 ports (offset 1), def 0
> XHCIprotocol USB  2.00, 2 ports (offset 3), def 10
> XHCIextcap 0xa @ feb22540
> Found 2 serial ports
> ATA controller 1 at 4010/4020/0 (irq 0 dev 88)
> EHCI init on dev 00:13.0 (regs=0xfeb25420)
> ATA controller 2 at 4018/4024/0 (irq 0 dev 88)
> Searching bootorder for: /pci@i0cf8/*@14,7
> Searching bootorder for: /rom@img/memtest
> Searching bootorder for: /rom@img/setup
> ata0-0: KINGSTON SMS200S3120G ATA-8 Hard-Disk (111 GiBytes)
> Searching bootorder for: /pci@i0cf8/*@11/drive@0/disk@0
> XHCI no devices found
> Initialized USB HUB (0 ports used)
> All threads complete.
> Scan for option roms
> Running option rom at c100:0003
> 
> 
> iPXE (http://ipxe.org) 00:00.0 C100 PCI2.10 PnP PMMpmm call arg1=1
> pmm call arg1=0
> +DFF49730pmm call arg1=1
> pmm call arg1=0
> +DFE89730 C100
> 
> 
> 
> Searching bootorder for: /rom@genroms/pxe.rom
> PCengines Press F10 key now for boot menu:
> Searching bootorder for: HALT
> drive 0x000f2e90: PCHS=16383/16/63 translation=lba LCHS=1024/255/63
> s=234441648
> Space available for UMB: c2000-ef000, f-f2e90
> Returned 262144 bytes of ZoneHigh
> e820 map has 7 items:
>   0:  - 0009f800 = 1 RAM
>   1: 0009f800 - 000a = 2 RESERVED
>   2: 000f - 0010 = 2 RESERVED
>   3: 0010 - dffae000 = 1 RAM
>   4: dffae000 - e000 = 2 RESERVED
>   5: f800 - fc00 = 2 RESERVED
>   6: 0001 - 00011f00 = 1 RAM
> enter handle_19:
>   NULL
> Booting from Hard Disk...
> Booting from :7c00
> [0.00] Linux version 4.6.2-040602-generic (kernel@gloin) (gcc
> version 5.3.1 20160528 (Ubuntu 5.3.1-21ubuntu11) ) #201606100516 SMP
> Fri Jun 10 09:18:34 UTC 2016
> [0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-4.6.2-040602-
> generic root= UUID=474ac08c-0d55-4ac0-ad7e-b922152698e5 ro
> console=tty0 console=ttyS0,115200n8
> [0.00] KERNEL supported cpus:
> [0.00]   Intel GenuineIntel
> [0.00]   AMD AuthenticAMD
> [0.00]   Centaur CentaurHauls
> [0.00] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
> [0.00] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating
> point registers'
> [0.00] x86/fpu: Supporting XSAVE feature 0x002: 'SSE
> registers'
> [0.00] x86/fpu: Supporting XSAVE feature 0x004: 'AVX
> registers'
> [0.00] x86/fpu: Enabled xstate features 0x7, context size is
> 832 bytes, using 'standard' format.
> [0.00] x86/fpu: Using 'eager' FPU context switches.
> [0.00] e820: BIOS-provided physical RAM map:
> [0.00] BIOS-e820: [mem 0x-0x0009f7ff] 
> usable
> [0.00] BIOS-e820: [mem 0x0009f800-0x0009] 
> reserved
> [0.00] BIOS-e820: [mem 0x000f-0x000f] 
> reserved
> [0.00] BIOS-e820: [mem 0x0010-0xdffadfff] 
> usable
> [0.00] BIOS-e820: [mem 0xdffae000-0xdfff] 
> reserved
> [0.00] BIOS-e820: [mem 

AW: MC7455 not listed as usb device any more after reboot

[Thomas Lang]

Hi Dan,
thanks for your comments.
I have included a trace of the working start and the reboot. I noticed that in 
the reboot case the usb 3-1.3 device is not detected anymore. The usb 3-1 is an 
ehci-pci. Would it help to reset the ehci-pci? And if so how would I do this.
Thanks a lot for any coment,
Thomas

Cold Start
PCEngines apu2
coreboot build 20160311
4080 MB ECC DRAM

SeaBIOS (version ?-20160311_005214-0c3a223c2ee6)
Found mainboard PC Engines PCEngines apu2
multiboot: eax=0, ebx=0
boot order:
1: /pci@i0cf8/usb@10/usb-*@1
2: /pci@i0cf8/usb@10/usb-*@2
3: /pci@i0cf8/usb@10/usb-*@3
4: /pci@i0cf8/usb@10/usb-*@4
5: /pci@i0cf8/*@14,7
6: /pci@i0cf8/*@11/drive@0/disk@0
7: /pci@i0cf8/*@11/drive@1/disk@0
8: /rom@genroms/pxe.rom
9: pxen0
10: scon1
11:
Found 23 PCI devices (max PCI bus is 04)
Copying SMBIOS entry point from 0xdffb7000 to 0x000f3110
Copying ACPI RSDP from 0xdffb8000 to 0x000f30e0
Copying MPTABLE from 0xdffdc000/dffdc010 to 0x000f2f30
Copying PIR from 0xdffdd000 to 0x000f2f00
Using pmtimer, ioport 0x818
Scan for VGA option rom
Running option rom at c000:0003

Google, Inc.
Serial Graphics Adapter 08/22/15
SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ 
(wiv@coreboot-Virtual-Machine) Sat Aug 22 09:25:30 UTC 2015
Term: 80x24
IO4 0
Turning on vga text mode console
SeaBIOS (version ?-20160311_005214-0c3a223c2ee6)
XHCI init on dev 00:10.0: regs @ 0xfeb22000, 4 ports, 32 slots, 32 byte contexts
XHCIextcap 0x1 @ feb22500
XHCIprotocol USB  3.00, 2 ports (offset 1), def 0
XHCIprotocol USB  2.00, 2 ports (offset 3), def 10
XHCIextcap 0xa @ feb22540
Found 2 serial ports
ATA controller 1 at 4010/4020/0 (irq 0 dev 88)
EHCI init on dev 00:13.0 (regs=0xfeb25420)
ATA controller 2 at 4018/4024/0 (irq 0 dev 88)
Searching bootorder for: /pci@i0cf8/*@14,7
Searching bootorder for: /rom@img/memtest
Searching bootorder for: /rom@img/setup
ata0-0: KINGSTON SMS200S3120G ATA-8 Hard-Disk (111 GiBytes)
Searching bootorder for: /pci@i0cf8/*@11/drive@0/disk@0
XHCI no devices found
Initialized USB HUB (0 ports used)
All threads complete.
Scan for option roms
Running option rom at c100:0003


iPXE (http://ipxe.org) 00:00.0 C100 PCI2.10 PnP PMMpmm call arg1=1
pmm call arg1=0
+DFF49730pmm call arg1=1
pmm call arg1=0
+DFE89730 C100



Searching bootorder for: /rom@genroms/pxe.rom
PCengines Press F10 key now for boot menu:
Searching bootorder for: HALT
drive 0x000f2e90: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=234441648
Space available for UMB: c2000-ef000, f-f2e90
Returned 262144 bytes of ZoneHigh
e820 map has 7 items:
  0:  - 0009f800 = 1 RAM
  1: 0009f800 - 000a = 2 RESERVED
  2: 000f - 0010 = 2 RESERVED
  3: 0010 - dffae000 = 1 RAM
  4: dffae000 - e000 = 2 RESERVED
  5: f800 - fc00 = 2 RESERVED
  6: 0001 - 00011f00 = 1 RAM
enter handle_19:
  NULL
Booting from Hard Disk...
Booting from :7c00
[0.00] Linux version 4.6.2-040602-generic (kernel@gloin) (gcc version 
5.3.1 20160528 (Ubuntu 5.3.1-21ubuntu11) ) #201606100516 SMP Fri Jun 10 
09:18:34 UTC 2016
[0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-4.6.2-040602-generic 
root= UUID=474ac08c-0d55-4ac0-ad7e-b922152698e5 ro console=tty0 
console=ttyS0,115200n8
[0.00] KERNEL supported cpus:
[0.00]   Intel GenuineIntel
[0.00]   AMD AuthenticAMD
[0.00]   Centaur CentaurHauls
[0.00] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[0.00] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point 
registers'
[0.00] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[0.00] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[0.00] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, 
using 'standard' format.
[0.00] x86/fpu: Using 'eager' FPU context switches.
[0.00] e820: BIOS-provided physical RAM map:
[0.00] BIOS-e820: [mem 0x-0x0009f7ff] usable
[0.00] BIOS-e820: [mem 0x0009f800-0x0009] reserved
[0.00] BIOS-e820: [mem 0x000f-0x000f] reserved
[0.00] BIOS-e820: [mem 0x0010-0xdffadfff] usable
[0.00] BIOS-e820: [mem 0xdffae000-0xdfff] reserved
[0.00] BIOS-e820: [mem 0xf800-0xfbff] reserved
[0.00] BIOS-e820: [mem 0x0001-0x00011eff] usable
[0.00] NX (Execute Disable) protection: active
[0.00] SMBIOS 2.7 present.
[0.00] e820: last_pfn = 0x11f000 max_arch_pfn = 0x4
[0.00] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WC  UC- WT
[0.00] e820: last_pfn = 0xdffae max_arch_pfn = 0x4
[0.00] found SMP MP-table at [mem 0x000f2f30-0x000f2f3f] mapped at 
[880f2f30]
[0.00] Scanning 1 areas for low 

RE: [Ublox]: UBlox L-210 will not work using ACM interface

[Engel, Mike]

Hi Aleksander,

I have used the MM 1.7.0 that includes the UBlox plugin and the error that I 
saw with the previous version persist. It seems that the SIM is not detected.

When I change the USB profile from (3 ("NETWORK, 1 CDC-ACM"),("RNDIS"),()) 
default. When I change that to (2 ("NETWORK, 3 CDC-ACM"),("ECM"),()) with the 
command
At+uusbconf=2

The modem will be detected as ETHX and I can use it correctly using the same 
SIM card. 

Could it be that the profile 3 only has one AT port ttyACM0 and the 
ModemManager might require more than one serial port? 

ModemManager[832]:  [1490023896.705295] 
[../../git/src/mm-port-serial.c:1349] _close_internal(): (ttyACM0) device 
open count is 2 (close)
ModemManager[832]:  [1490023896.705621] 
[../../git/src/mm-port-serial-at.c:459] debug_log(): (ttyACM0): --> 'AT+CP
IN?'
ModemManager[832]:  [1490023896.726605] 
[../../git/src/mm-port-serial-at.c:459] debug_log(): (ttyACM0): <-- '<
LF>+CME ERROR: 10'
ModemManager[832]:  [1490023896.727072] 
[../../git/src/mm-serial-parsers.c:364] mm_serial_parser_v1_parse(): Got f
ailure code 10: SIM not inserted
ModemManager[832]:  [1490023896.727359] 
[../../git/src/mm-iface-modem.c:268] load_unlock_required_ready(): Couldn'
t check if unlock required: 'SIM not inserted'
ModemManager[832]:  [1490023896.727701] 
[../../git/src/mm-port-serial.c:1349] _close_internal(): (ttyACM0) device 
open count is 1 (close)
ModemManager[832]:   [1490023896.728648] 
[../../git/src/mm-broadband-modem.c:9834] iface_modem_initialize_ready(): 
Modem couldn't be initialized: Couldn't check unlock status: SIM not inserted
ModemManager[832]:   [1490023896.728974] 
[../../git/src/mm-iface-modem.c:1433] __iface_modem_update_state_internal(
): Modem: state changed (unknown -> failed)
ModemManager[832]:  [1490023896.730496] 
[../../git/src/mm-broadband-modem.c:9928] iface_modem_firmware_initialize_
ready(): Couldn't initialize interface: 'Firmware interface not available'
ModemManager[832]:  [1490023896.730968] 
[../../git/src/mm-broadband-modem.c:10142] initialize_step(): SIM is missi
ng and Modem does not support SIM Hot Swap
ModemManager[832]:  [1490023896.731942] 
[../../git/src/mm-port-serial.c:1349] _close_internal(): (ttyACM0) device 
open count is 0 (close)
ModemManager[832]:  [1490023896.732190] 
[../../git/src/mm-port-serial.c:1365] _close_internal(): (ttyACM0) closing
 serial port...
ModemManager[832]:  [1490023896.735805] 
[../../git/src/mm-port-serial.c:1413] _close_internal(): (ttyACM0) serial 
port closed
ModemManager[832]:  [1490023896.736119] 
[../../git/src/mm-base-modem.c:867] initialize_ready(): Couldn't finish in
itialization in the current state: 'Modem is unusable, cannot fully initialize'
ModemManager[832]:  [1490023896.740291] [../../git/src/mm-device.c:283] 
export_modem(): [device /sys/devices/soc0/
soc.0/210.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.3] exported modem at 
path '/org/freedesktop/ModemManager1/Modem
/0'
ModemManager[832]:  [1490023896.740630] [../../git/src/mm-device.c:284] 
export_modem(): [device /sys/devices/soc0/
soc.0/210.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.3]plugin:  u-blox
ModemManager[832]:  [1490023896.740895] [../../git/src/mm-device.c:288] 
export_modem(): [device /sys/devices/soc0/
soc.0/210.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.3]vid:pid: 
0x1546:0x1146

root@ccimx6sbc:~# mmcli -L

Found 1 modems:
/org/freedesktop/ModemManager1/Modem/0 [u-blox] TOBY-L210

root@ccimx6sbc:~# mmcli -i 0
error: couldn't find sim at '/org/freedesktop/ModemManager1/SIM/0'
root@ccimx6sbc:~# mmcli -m 0

/org/freedesktop/ModemManager1/Modem/0 (device id 
'64dfa1879a3eb95b67a016cf01db3b029e708356')
  -
  Hardware |   manufacturer: 'u-blox'
   |  model: 'TOBY-L210'
   |   revision: '09.71'
   |  supported: 'gsm-umts, lte'
   |current: 'gsm-umts, lte'
   |   equipment id: '352255060049271'
  -
  System   | device: 
'/sys/devices/soc0/soc.0/210.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.3'
   |drivers: 'cdc_acm'
   | plugin: 'u-blox'
   |   primary port: 'ttyACM0'
   |  ports: 'ttyACM0 (at)'
  -
  Numbers  |   own : 'unknown'
  -
  Status   |   lock: 'unknown'
   | unlock retries: 'unknown'
   |  state: 'failed'
   |  failed reason: 'sim-missing'
   |power state: 'on'
   |access tech: 'unknown'
   | signal quality: '0' (cached)
  -
  Modes|  supported: 'allowed: 2g; preferred: none
   |  allowed: 2g, 3g; preferred: none
   |  allowed: 2g, 3g; preferred: 2g
   |  allowed: 2g, 3g; preferred: 3g
   |  allowed: 3g; preferred: none
   |  

Integration into NetworkManager

[colin.helliwell]

So I've got a [reasonably?] sorted MM setup now - a mux driver providing two
virtual ports: ttyMux0 (PPP) and ttyMux1 (Primary). I'm now wanting to hook
the former into NetworkManager.

>From a fresh rootfs/boot-up, 'nmcli  dev status' lists 

DEVICE   TYPE  STATE CONNECTION

eth0 ethernet  connected Wired connection 1

ttyMux1  gsm   disconnected  --

lo   loopback  unmanaged --

 

I'm not sure why/where it's picking up ttyMux1, and in any case I need it to
be using ttyMux0 instead. Where's this hooking in from?

(Also struggling to create an NM connection - via nmcli - that it'll want to
play with on that device... tips gratefully received..!)

 

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Re: Integration into NetworkManager

[Dan Williams]

On Mon, 2017-03-20 at 16:48 +, colin.helliw...@ln-systems.com
wrote:
> So I've got a [reasonably?] sorted MM setup now - a mux driver
> providing two
> virtual ports: ttyMux0 (PPP) and ttyMux1 (Primary). I'm now wanting
> to hook
> the former into NetworkManager.
> 
> From a fresh rootfs/boot-up, 'nmcli  dev status' lists 
> 
> DEVICE   TYPE  STATE CONNECTION
> 
> eth0 ethernet  connected Wired connection 1
> 
> ttyMux1  gsm   disconnected  --
> 
> lo   loopback  unmanaged --
> 
>  
> 
> I'm not sure why/where it's picking up ttyMux1, and in any case I
> need it to
> be using ttyMux0 instead. Where's this hooking in from?

From ModemManager.  NM reads the "control" port from ModemManager's
dbus interface, so it should be the same thing you see with 'mmcli -m
X'.  But in the end it's just a name that NM chooses and NM doesn't do
anything interesting with it other than logging.  Internally NM uses
the ModemManager D-Bus object path to refer to the modem.

> (Also struggling to create an NM connection - via nmcli - that it'll
> want to
> play with on that device... tips gratefully received..!)

[connection]
id=T-Mobile Internet
uuid=0083942e-b260-4b73-a1fd-860f3e6ca2c2
type=gsm

[gsm]
apn=epc.tmobile.com

[ipv4]
method=auto

[ipv6]
method=auto

is the file that would go into /etc/NetworkManager/system-connections. 
Then 'nmcli con reload' and it should show up in NM and you can 'nmcli
con up "T-Mobile Internet"' and it'll use the first available WWAN
device to do that.

But with nmcli there are a couple ways.  You can do it all from one
command-line if you want, though I just tried and it seems things
aren't quite working on NM 1.6.x as well as we'd like (filed https://bu
gzilla.gnome.org/show_bug.cgi?id=780323 for those).

Dan
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