Unexpected Mode Preference when using --nas-set-system-selection-preference

Markus Gothe nietzsche at lysator.liu.se
Mon Apr 13 13:43:11 PDT 2015


There is something wrong with your modem... Sorry to say. The Verizon USB551L doesnt support neither GSM nor UMTS. :-(
There are two known ways to get/set rat...

The NAS set selection preference methinks is be uses when to choose between CDMA and GSM.

I will check this up when I have the source code at hand.

//M

Den 10 apr 2015 22:10 skrev Garrett Doorenbos <gdoorenbos at yahoo.com>:
>
> Hello,
>  
> I am using qmicli with a Novatel USB551L modem. When I try to use the --nas-set-system-selection-preference command to set my preference to ‘lte’, I get a ‘DeviceUnsupported’ error. I noticed that if I run the command with the verbose tag, the Mode Preference sent to the modem is ‘gsm, lte, td-scdma’. I think this causes problems since my modem doesn’t support td-scdma (--dms-get-capabilities shows only cdma20001x, evdo, gsm, umts, lte). I also noticed that whatever input I give to --nas-set-system-selection-preference, it seems to OR it with gsm, lte, and td-scdma. Is there a way to get --nas-set-system-selection-preference to only send ‘lte’ for the Mode Preference? I’ve copy/pasted results from my machine below.
>  
> Thanks,
> Garrett
>
> -----
>  
> sh-4.2# qmicli -d /dev/cdc-wdm0 --dms-get-capabilities
> [/dev/cdc-wdm0] Device capabilities retrieved:
>         Max TX channel rate: '5742000'
>         Max RX channel rate: '7200000'
>                Data Service: 'simultaneous-cs-ps'
>                         SIM: 'supported'
>                    Networks: 'cdma20001x, evdo, gsm, umts, lte'
> sh-4.2# qmicli -d /dev/cdc-wdm0 --nas-set-system-selection-preference=lte
> error: couldn't set operating mode: QMI protocol error (25): 'DeviceUnsupported'
> sh-4.2# qmicli -d /dev/cdc-wdm0 --nas-set-system-selection-preference=lte -v
> [13 Sep 2000, 03:43:25] [Debug] QMI Device at '/dev/cdc-wdm0' ready
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Assuming service 'nas' is supported...
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Allocating new client ID...
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Sent message...
> <<<<<< RAW:
> <<<<<<   length = 16
> <<<<<<   data   = 01:0F:00:00:00:00:00:01:22:00:04:00:01:01:00:03
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Sent message (translated)...
> <<<<<< QMUX:
> <<<<<<   length  = 15
> <<<<<<   flags   = 0x00
> <<<<<<   service = "ctl"
> <<<<<<   client  = 0
> <<<<<< QMI:
> <<<<<<   flags       = "none"
> <<<<<<   transaction = 1
> <<<<<<   tlv_length  = 4
> <<<<<<   message     = "Allocate CID" (0x0022)
> <<<<<< TLV:
> <<<<<<   type       = "Service" (0x01)
> <<<<<<   length     = 1
> <<<<<<   value      = 03
> <<<<<<   translated = nas
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Received message...
> >>>>>> RAW:
> >>>>>>   length = 24
> >>>>>>   data   = 01:17:00:80:00:00:01:01:22:00:0C:00:02:04:00:00:00:00:00:01:02:00:03:0A
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Received message (translated)...
> >>>>>> QMUX:
> >>>>>>   length  = 23
> >>>>>>   flags   = 0x80
> >>>>>>   service = "ctl"
> >>>>>>   client  = 0
> >>>>>> QMI:
> >>>>>>   flags       = "response"
> >>>>>>   transaction = 1
> >>>>>>   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      = 03:0A
> >>>>>>   translated = [ service = 'nas' cid = '10' ]
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Registered 'nas' (version unknown) client with ID '10'
> [13 Sep 2000, 03:43:25] [Debug] Asynchronously setting system selection preference...
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Sent message...
> <<<<<< RAW:
> <<<<<<   length = 29
> <<<<<<   data   = 01:1C:00:00:03:0A:00:01:00:33:00:10:00:19:04:00:00:00:00:00:17:01:00:01:11:02:00:B4:5B
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Sent message (translated)...
> <<<<<< QMUX:
> <<<<<<   length  = 28
> <<<<<<   flags   = 0x00
> <<<<<<   service = "nas"
> <<<<<<   client  = 10
> <<<<<< QMI:
> <<<<<<   flags       = "none"
> <<<<<<   transaction = 1
> <<<<<<   tlv_length  = 16
> <<<<<<   message     = "Set System Selection Preference" (0x0033)
> <<<<<< TLV:
> <<<<<<   type       = "GSM WCDMA Acquisition Order Preference" (0x19)
> <<<<<<   length     = 4
> <<<<<<   value      = 00:00:00:00
> <<<<<<   translated = automatic
> <<<<<< TLV:
> <<<<<<   type       = "Change Duration" (0x17)
> <<<<<<   length     = 1
> <<<<<<   value      = 01
> <<<<<<   translated = permanent
> <<<<<< TLV:
> <<<<<<   type       = "Mode Preference" (0x11)
> <<<<<<   length     = 2
> <<<<<<   value      = B4:5B
> <<<<<<   translated = gsm, lte, td-scdma
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Received message...
> >>>>>> RAW:
> >>>>>>   length = 20
> >>>>>>   data   = 01:13:00:80:03:0A:02:01:00:33:00:07:00:02:04:00:01:00:19:00
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Received message (translated)...
> >>>>>> QMUX:
> >>>>>>   length  = 19
> >>>>>>   flags   = 0x80
> >>>>>>   service = "nas"
> >>>>>>   client  = 10
> >>>>>> QMI:
> >>>>>>   flags       = "response"
> >>>>>>   transaction = 1
> >>>>>>   tlv_length  = 7
> >>>>>>   message     = "Set System Selection Preference" (0x0033)
> >>>>>> TLV:
> >>>>>>   type       = "Result" (0x02)
> >>>>>>   length     = 4
> >>>>>>   value      = 01:00:19:00
> >>>>>>   translated = FAILURE: DeviceUnsupported
>  
> error: couldn't set operating mode: QMI protocol error (25): 'DeviceUnsupported'
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Unregistered 'nas' client with ID '10'
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Sent message...
> <<<<<< RAW:
> <<<<<<   length = 17
> <<<<<<   data   = 01:10:00:00:00:00:00:02:23:00:05:00:01:02:00:03:0A
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Sent message (translated)...
> <<<<<< QMUX:
> <<<<<<   length  = 16
> <<<<<<   flags   = 0x00
> <<<<<<   service = "ctl"
> <<<<<<   client  = 0
> <<<<<< QMI:
> <<<<<<   flags       = "none"
> <<<<<<   transaction = 2
> <<<<<<   tlv_length  = 5
> <<<<<<   message     = "Release CID" (0x0023)
> <<<<<< TLV:
> <<<<<<   type       = "Release Info" (0x01)
> <<<<<<   length     = 2
> <<<<<<   value      = 03:0A
> <<<<<<   translated = [ service = 'nas' cid = '10' ]
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Received message...
> >>>>>> RAW:
> >>>>>>   length = 24
> >>>>>>   data   = 01:17:00:80:00:00:01:02:23:00:0C:00:02:04:00:00:00:00:00:01:02:00:03:0A
>  
> [13 Sep 2000, 03:43:25] [Debug] [/dev/cdc-wdm0] Received message (translated)...
> >>>>>> QMUX:
> >>>>>>   length  = 23
> >>>>>>   flags   = 0x80
> >>>>>>   service = "ctl"
> >>>>>>   client  = 0
> >>>>>> QMI:
> >>>>>>   flags       = "response"
> >>>>>>   transaction = 2
> >>>>>>   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      = 03:0A
> >>>>>>   translated = [ service = 'nas' cid = '10' ]
>  
> [13 Sep 2000, 03:43:25] [Debug] Client released
> sh-4.2#
>


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