Sierra wireless modem network selection preference

[Erik Kazandjian]

Hi I.m trying to add this feature. I started by changing the nas.json 
defintion. For there on I get some code generated. I also added in the 
qmicli_nas.c and extra command. But I'm stucked now because first of all 
I'm not sure which call I have to do to actually set this option in the 
modem and secondly I don't see where in the generated a call to the 
driver is done to execute the function I want.
Could you guide me a little to say where I have to add the modifications ?

Thanks

Erik


On 04/30/2018 08:36 PM, Dan Williams wrote:
> On Fri, 2018-04-27 at 16:27 +0200, Erik Kazandjian wrote:
>> Hi,
>>
>> I have 2 identical Sierra Wireless modems. If I call sudo qmicli -d
>> /dev/cdc-wdm0 --nas-get-system-selection-preference on the first
>> modem I get
>>
>>
>>       Emergency mode: 'no'
>>       Mode preference: 'umts, lte'
>>       Band preference: 'wcdma-2100, wcdma-850-us, wcdma-800, wcdma-
>> 900,
>> wcdma-1700-japan'
>>       LTE band preference: '1, 3, 5, 7, 8, 18, 19, 21, 38, 39, 40, 41'
>>       TD-SCDMA band preference: 'f'
>>       Roaming preference: 'any'
>>       Network selection preference: '*automatic*'
>>       Service domain preference: 'cs-ps'
>>       Service selection preference: 'automatic'
>>
>>
>> on the second I get
>>
>>       Emergency mode: 'no'
>>       Mode preference: 'umts, lte'
>>       Band preference: 'wcdma-2100, wcdma-850-us, wcdma-800, wcdma-
>> 900,
>> wcdma-1700-japan'
>>       LTE band preference: '1, 3, 5, 7, 8, 18, 19, 21, 38, 39, 40, 41'
>>       TD-SCDMA band preference: 'f'
>>       Roaming preference: 'any'
>>       Network selection preference: '*manual*'
>>       Service domain preference: 'cs-ps'
>>       Service selection preference: 'automatic'
>>
>>
>> Is there a way to change the Network selection preference
> With libqmi yes, but we don't currently have the auto/manual exposed
> through qmicli unfortunately.  I took a quick look and it's not a 10
> minute task unfortunately due to the existing --nas-set-system-
> selection-preference syntax.
>
> If you're just looking to switch this modem to 'auto' and be done
> though, that wouldn't be too hard with a one-off patch.
>
> Dan