how to support EM7565 modem

Sebastian Sjoholm sebastian.sjoholm at gmail.com
Wed Nov 29 05:55:15 UTC 2017


On Wed, Nov 29, 2017 at 4:50 AM, Sebastian Sjoholm <
sebastian.sjoholm at gmail.com> wrote:

>
>> > Hi,
>> >
>> > AT (qcserial) command test:
>> >
>> > at!gstatus?
>> > !GSTATUS:
>> > Current Time:  115797 Temperature: 27
>> > Reset Counter: 1 Mode:        ONLINE
>> > System mode:   LTE        PS state:    Attached
>> > LTE band:      B7      LTE bw:      20 MHz
>> > LTE Rx chan:   3148 LTE Tx chan: 21148
>> > LTE SSC1 state:NOT ASSIGNED
>> > LTE SSC2 state:NOT ASSIGNED
>> > LTE SSC3 state:NOT ASSIGNED
>> > LTE SSC4 state:NOT ASSIGNED
>>
>> Nice.  I guess we need to extend
>>
>>  qmicli --nas-get-lte-cphy-ca-info
>>
>> was well..
>>
>>
> # qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
> error: couldn't get carrier aggregation info: QMI protocol error (71):
> 'InvalidQmiCommand'
> #
>
>
>>
Sorry, the qmicli printout is from another modem, this one is right;

root at SBC-121:~/mserver#  qmicli -d /dev/cdc-wdm0 --nas-get-lte-cphy-ca-info
[/dev/cdc-wdm0] Successfully got carrier aggregation info
DL Bandwidth: 'unknown'
Secondary Cell Info
Physical Cell ID: '0'
RX Channel: '0'
DL Bandwidth: 'unknown'
LTE Band: 'eutran-1'
State: 'deconfigured'
Primary Cell Info
Physical Cell ID: '5'
RX Channel: '3148'
DL Bandwidth: '20'
LTE Band: 'eutran-8'
Secondary Cell index: '0'
root at SBC-121:~/mserver#

However, it seems little bit wierd that it reports Band 1 and Band 8, when
the modem should be camping on Band 7 (as the at!gstatus printout shows).

-Sebastian
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