Re: [MM][PATCH]update the NDISDUP check handle for Huawei modem

[Bjørn Mork <bjorn mork no>]

"Fangxiaozhi (Franko)" <fangxiaozhi huawei com> writes:

> This patch updates the NDISDUP check handle for Huawei modem.
> For Huawei devices, which expose the standard ECM port, at command "^DHCP?" is used to query the IP and DNS 
> address for the connection, 
> At command "^NDISSTATQRY?" is used to query the connection status(connected or disconnected). 
> They have some different. The response of DHCP does not exactly indicate the right connection status in 
> that time.
> So it is better to send NDISSTATQRY to check the connection status after NDISDUP connect/disconnect, but 
> not DHCP.

But the "^NDISSTATQRY" command isn't implemented on all modems
implementing "^NDISDUP" and "^DHCP", is it?  Shouldn't you fall back to
^DHCP in case ^NDISSTATQRY returns ERROR?  Or is this command
implemented on all modems where we currently need to use AT commands?  I
don't have any modem without QMI and/or MBIM, but none of the two QMI
modems I have support ^NDISSTATQRY:


ati
Manufacturer: huawei
Model: E367
Revision: 11.810.09.00.00
IMEI: 353613048805199
+GCAP: +CGSM,+DS,+ES

OK
at^ndisdup=?
^NDISDUP:(1-16),(0-1)

OK
at^dhcp?
+CME ERROR: no connection to phone
at^ndisstatqry?
ERROR


ati                                                                                                           
Manufacturer: Huawei Technologies Co., Ltd.
Model: E392
Revision: 11.335.13.00.000
IMEI: 860999000023707
+GCAP: +CGSM

OK
at^ndisdup=?
^NDISDUP:(1-16),(1-16)

OK
at^dhcp?
+CME ERROR: no connection to phone
at^ndisstatqry?
ERROR


Bjørn