wwan-interface not being shown with sierra-modem-in-QMI-mode

[Ajay Garg]

Hi All.

I switched my modem into QMI-mode, and rebooted the SOC
(Ubuntu-on-SSD-interfaced-with-modem.
After reboot, following is the information ::


== Pre-Requisites are in place ==

############################################################
root at logic-desktop:~# *lsusb*
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 1199:68a2 Sierra Wireless, Inc.
Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
Bus 001 Device 003: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse
Bus 001 Device 002: ID 046d:c31d Logitech, Inc. Media Keyboard K200
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

root at logic-desktop:~#* ps -aux | grep qmi-proxy*
root       861  0.0  0.1  28032  5740 ?        Sl   17:44   0:00
/usr/lib/libqmi/qmi-proxy
root      2692  0.0  0.0   4692  2032 pts/0    S+   17:57   0:00 grep
--color=auto qmi-proxy

root at logic-desktop:~# *lsmod | grep sierra*

root at logic-desktop:~# *lsmod | grep qcserial*
qcserial               13006  0
usb_wwan               19306  1 qcserial
usbserial              38972  2 qcserial,usb_wwan

root at logic-desktop:~# *lsmod | grep qmi_wwan*
qmi_wwan               21469  0
cdc_wdm                18518  1 qmi_wwan
usbnet                 37829  1 qmi_wwan
############################################################





== Initial-Interface Listing ==

############################################################
root at logic-desktop:~# ifconfig
eth1      Link encap:Ethernet  HWaddr 00:90:0b:4c:65:fa
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Memory:d0700000-d071ffff

eth2      Link encap:Ethernet  HWaddr 00:90:0b:4c:65:fb
          inet addr:192.168.1.4  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::290:bff:fe4c:65fb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:96 errors:0 dropped:0 overruns:0 frame:0
          TX packets:110 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:16999 (16.9 KB)  TX bytes:14453 (14.4 KB)
          Memory:d0600000-d061ffff

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:58 errors:0 dropped:0 overruns:0 frame:0
          TX packets:58 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:4150 (4.1 KB)  TX bytes:4150 (4.1 KB)
############################################################





== Connection-Establishment ==

############################################################
root at logic-desktop:~# *qmicli -d /dev/cdc-wdm0
--wds-start-network="apn=airtelgprs.com <http://airtelgprs.com>"*
[/dev/cdc-wdm0] Network started
    Packet data handle: '25416552'

root at logic-desktop:~# *qmicli -d /dev/cdc-wdm0 --nas-get-signal-strength*
[/dev/cdc-wdm0] Successfully got signal strength
Current:
    Network 'gsm': '-69 dBm'
RSSI:
    Network 'gsm': '-69 dBm'
ECIO:
    Network 'gsm': '-127.5 dBm'
IO: '-106 dBm'
SINR: (8) '9.0 dB'
############################################################




== Latest-Interface Listing ==

############################################################
root at logic-desktop:~# ifconfig
eth1      Link encap:Ethernet  HWaddr 00:90:0b:4c:65:fa
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Memory:d0700000-d071ffff

eth2      Link encap:Ethernet  HWaddr 00:90:0b:4c:65:fb
          inet addr:192.168.1.4  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::290:bff:fe4c:65fb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9142 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7768 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9357236 (9.3 MB)  TX bytes:1060556 (1.0 MB)
          Memory:d0600000-d061ffff

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:955 errors:0 dropped:0 overruns:0 frame:0
          TX packets:955 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:75461 (75.4 KB)  TX bytes:75461 (75.4 KB)
############################################################



What am I missing?

Will be grateful for pointers.


Thanks and Regards,
Ajay
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