<div dir="ltr"><div>Hi, I am testing this feature on Sierra Wireless modems (MC7430 currently) and it has worked on a few bands that I have tried. However, I found that, at least on band 28, that the command is returning "(null)", whereas AT!GSTATUS? is returning the correct value, any idea why? Does the translation below seem correct?</div><div style="font-family:arial,helvetica,sans-serif"> </div><div style="font-family:arial,helvetica,sans-serif">Verbose output:</div><div style="font-family:arial,helvetica,sans-serif"> </div>qmicli -p -v -d /dev/cdc-wdm0 --nas-get-rf-band-info [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] Opening device with flags 'proxy, auto'... [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] loaded driver of cdc-wdm port: qmi_wwan [04 Mar 2020, 16:21:05] -Warning ** [/dev/cdc-wdm0] requested auto mode but no MBIM QMUX sue [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] sent message... <<<<<< RAW: <<<<<< length = 28 <<<<<< data = 01:1B:00:00:00:00:00:01:00:FF:10:00:01:0D:00:2F:64:65:76:2F:63:64:63:2D:70 [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 27 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 16 <<<<<< message = "Internal Proxy Open" (0xFF00) <<<<<< TLV: <<<<<< type = "Device Path" (0x01) <<<<<< length = 13 <<<<<< value = 2F:64:65:76:2F:63:64:63:2D:77:64:6D:30 <<<<<< translated = /dev/cdc-wdm0 [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 19 <<<<<< data = 01:12:00:00:00:00:01:01:00:FF:07:00:02:04:00:00:00:00:00 [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 18 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 7 <<<<<< message = "Internal Proxy Open" (0xFF00) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS [04 Mar 2020, 16:21:05] [Debug] QMI Device at '/dev/cdc-wdm0' ready [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] Assuming service 'nas' is supported... [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] Allocating new client ID... [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] sent message... <<<<<< RAW: <<<<<< length = 16 <<<<<< data = 01:0F:00:00:00:00:00:02:22:00:04:00:01:01:00:03 [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 15 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 2 <<<<<< tlv_length = 4 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Service" (0x01) <<<<<< length = 1 <<<<<< value = 03 <<<<<< translated = nas [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:02:22:00:0C:00:02:04:00:00:00:00:00:01:02:00:03:03 [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 2 <<<<<< tlv_length = 12 <<<<<< message = "Allocate CID" (0x0022) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Allocation Info" (0x01) <<<<<< length = 2 <<<<<< value = 03:03 <<<<<< translated = [ service = 'nas' cid = '3' ] [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] Registered 'nas' (version unknown) client w' [04 Mar 2020, 16:21:05] [Debug] Asynchronously getting RF band info ... [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] sent message... <<<<<< RAW: <<<<<< length = 13 <<<<<< data = 01:0C:00:00:03:03:00:01:00:31:00:00:00 [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 12 <<<<<< flags = 0x00 <<<<<< service = "nas" <<<<<< client = 3 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 1 <<<<<< tlv_length = 0 <<<<<< message = "Get RF Band Information" (0x0031) [04 Mar 2020, 16:21:05] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 40 <<<<<< data = 01:27:00:80:03:03:02:01:00:31:00:1B:00:02:04:00:00:00:00:00:01:06:00:01:00 [04 Mar 2020, 16:21:09] [Debug] [/dev/cdc-wdm0] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 39 <<<<<< flags = 0x80 <<<<<< service = "nas" <<<<<< client = 3 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 1 <<<<<< tlv_length = 27 <<<<<< message = "Get RF Band Information" (0x0031) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "List" (0x01) <<<<<< length = 6 <<<<<< value = 01:08:9E:00:DB:24 <<<<<< translated = { [0] = '[ radio_interface = 'lte' active_band_class = '(null)' activ} <<<<<< TLV: <<<<<< type = 0x11 <<<<<< length = 8 <<<<<< value = 01:08:9E:00:DB:24:00:00 [/dev/cdc-wdm0] Successfully got RF band info Radio Interface: 'lte' Active Band Class: '(null)' Active Channel: '9435' [04 Mar 2020, 16:21:09] [Debug] [/dev/cdc-wdm0] Releasing 'nas' client with flags 'release-. [04 Mar 2020, 16:21:09] [Debug] [/dev/cdc-wdm0] Unregistered 'nas' client with ID '3' [04 Mar 2020, 16:21:09] [Debug] [/dev/cdc-wdm0] sent message... <<<<<< RAW: <<<<<< length = 17 <<<<<< data = 01:10:00:00:00:00:00:03:23:00:05:00:01:02:00:03:03 [04 Mar 2020, 16:21:09] [Debug] [/dev/cdc-wdm0] sent generic request (translated)... <<<<<< QMUX: <<<<<< length = 16 <<<<<< flags = 0x00 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "none" <<<<<< transaction = 3 <<<<<< tlv_length = 5 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 03:03 <<<<<< translated = [ service = 'nas' cid = '3' ] [04 Mar 2020, 16:21:09] [Debug] [/dev/cdc-wdm0] received message... <<<<<< RAW: <<<<<< length = 24 <<<<<< data = 01:17:00:80:00:00:01:03:23:00:0C:00:02:04:00:00:00:00:00:01:02:00:03:03 [04 Mar 2020, 16:21:09] [Debug] [/dev/cdc-wdm0] received generic response (translated)... <<<<<< QMUX: <<<<<< length = 23 <<<<<< flags = 0x80 <<<<<< service = "ctl" <<<<<< client = 0 <<<<<< QMI: <<<<<< flags = "response" <<<<<< transaction = 3 <<<<<< tlv_length = 12 <<<<<< message = "Release CID" (0x0023) <<<<<< TLV: <<<<<< type = "Result" (0x02) <<<<<< length = 4 <<<<<< value = 00:00:00:00 <<<<<< translated = SUCCESS <<<<<< TLV: <<<<<< type = "Release Info" (0x01) <<<<<< length = 2 <<<<<< value = 03:03 <<<<<< translated = [ service = 'nas' cid = '3' ] [04 Mar 2020, 16:21:09] [Debug] Client released [04 Mar 2020, 16:21:09] [Debug] Closed <div> </div><div> </div><div>Regards,</div><div> </div><div>--</div><div>Paul</div></div>