AT Commands for QMI based Dialing?
list1 at michaelshell.org
Sat Dec 27 20:06:33 PST 2014
Are there any known AT commands to "activate/dial" the QMI network
interface for wireless modems? I'd want to know if there are any such
known AT commands for any model of (QMI based) modems or even just
where I might find such information, but if I had to name particular
models I would be most interested in the Huawei UMG366 and/or
ZTE MF683 (used in the T-Mobile Jet 2.0 and Rocket 3.0 products).
The idea here is to have a way to control and activate the cdc-wdm0
interface via AT commands alone (like we can easily do with AT^NDISDUP
for Huawei NDIS based modems) without having to depend at all on
the libqmi package. (Please ignore the higher issue of just why I want
to do this, I just do. LOL.)
For example, it is my understanding that modems based in Sierra Wireless
chipsets can do something like:
I attempted something like:
and the modem connects with a solid LED indication, but the wwan0
interface remains silent, with no response to DHCP requests over
it until a
qmi-network /dev/cdc-wdm0 start
is issued which wakes everything up and DHCP can then proceed just
If I try
type commands I lose the AT console on /dev/ttyUSB1 as it wants to
start ppp and such.
That said, I do wonder if there are magic dial codes (e.g., ATD*7134#)
which will enable the qmi network interface and leave the AT command
Working on the other side of the problem, perhaps there is a simple
ioctl or such which I can issue to /dev/cdc-wdm0 to activate it
from that end of things.
Cheers and thank you in advance,
More information about the ModemManager-devel