Qualcomm LTE USB stick 05c6:6000 - now what?

undef · June 19, 2021, 3:16pm

Hi, everyone - I'm trying to get a no-brand LTE usb stick to work. I looked around the forum but I'm getting lost in usbmode_switch, qmi, cdc ... while I can't even get the thing to work in serial mode (don't know if that is even needed). ;-/

context:
router is an gl.init ar300m, running latest RC3: r16172-2aba3e9784
(clean install, but in the meantime i did install usbutils, modeswitch and just about every kernel module referenced in the forums)

lsusb shows the device as PID/VID 05c6:6000 ... but that is as far as I got,
any help in getting the stick to work would much appreciated.

More details below:

output from lsusb -t


root@OpenWrt:~# lsusb -t
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
    |__ Port 1: Dev 5, If 0, Class=, Driver=option, 480M
    |__ Port 1: Dev 5, If 1, Class=, Driver=option, 480M
    |__ Port 1: Dev 5, If 2, Class=, Driver=option, 480M
    |__ Port 1: Dev 5, If 3, Class=, Driver=option, 480M
    |__ Port 1: Dev 5, If 4, Class=, Driver=, 480M

and /sys/kernel/debug/usb/devices

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480  MxCh= 1
B:  Alloc=  0/800 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev= 5.04
S:  Manufacturer=Linux 5.4.124 ehci_hcd
S:  Product=EHCI Host Controller
S:  SerialNumber=1b000000.usb
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   4 Ivl=256ms

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  3 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=05c6 ProdID=6000 Rev= 0.00
S:  Manufacturer=Qualcomm, Incorporated
S:  Product=Qualcomm CDMA Technologies MSM
S:  SerialNumber=1234567890ABCDEF
C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=81(I) Atr=03(Int.) MxPS=  64 Ivl=2ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

thedukesd · June 19, 2021, 3:30pm

Did you tried the lte usb stick in a Linux distro? It's an easy way to figure out what driver it needs/if it works in Linux.

undef · June 19, 2021, 3:35pm

thanks for the quick reply - I don't have a linux box available.
so no. (I can confirm that it works under windows, using the application supplied on the stick)

thedukesd · June 19, 2021, 3:38pm

can you post the dmesg section related to usb?

anon50098793 · June 19, 2021, 3:39pm

05c6  Qualcomm, Inc.
	6000  Siemens SG75

undef · June 19, 2021, 3:40pm

replugged the device:

[ 4610.590092] usb 1-1: new high-speed USB device number 7 using ehci-platform
[ 4610.781857] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 4610.796551] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 4610.811069] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 4610.825565] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3

123serge123 · June 19, 2021, 3:43pm

See this topic

undef · June 19, 2021, 3:46pm

i did read that topic, but the modes don't match and I do have ttyUSB devices.
I'm not sure how to related that topic to my question - i am already in :6000 mode.

thedukesd · June 19, 2021, 3:52pm

Maybe this can help you.

I asked if you tested it in a linux machine cause at least for me it helps me figure out what i need to get it working in openwrt if in the linux distro it's working out of the box.

What I don't like is:

Driver=(none)

I expected at least in one case to be something else than =(none)
so either is not switched in an "useful" mode or there is no driver loaded, maybe cause the right kmod is not installed...

undef · June 19, 2021, 3:56pm

00ps, my bad .. copy/pasted an old log (with the option serial it does show that correctly)
my apologies - it does show option loaded.

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  7 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=05c6 ProdID=6000 Rev= 0.00
S:  Manufacturer=Qualcomm, Incorporated
S:  Product=Qualcomm CDMA Technologies MSM
S:  SerialNumber=1234567890ABCDEF
C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=81(I) Atr=03(Int.) MxPS=  64 Ivl=2ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms
I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

thedukesd · June 19, 2021, 4:09pm

up to Establishing connection
details about apn, username, password well it's kinda up to you to know/find them. usualy you can find such info either on the provider website or in the contract you signed

undef · June 19, 2021, 4:13pm

yeah, i have that info available... still working my way through the link you posted.
but I didn't even get a response on "ATI" from any of the serial ports ... I'll post back here once i worked through the info in the link.

thanks for your help.

undef · June 19, 2021, 9:42pm

Well... I found a workaround by activating the built-in accesspoint, but i've given up on getting the stick to work over USB.

I managed to get a response on /dev/ttyUSB1 e.g. ATI

Manufacturer: QUALCOMM INCORPORATED

Model: 0

Revision: MDM9K-CIGO-U-7.3.9-4M  1  [Jan 19 2012 21:00:00]

SVN: 00

IMEI: 01234567890123456

+GCAP: +CGSM

but ppp doesn't seem to work, this is as far as i got:

Sat Jun 19 20:58:39 2021 daemon.notice netifd: Interface 'stick' is setting up now
Sat Jun 19 20:58:39 2021 daemon.notice pppd[8175]: pppd 2.4.8 started by root, uid 0
Sat Jun 19 20:58:39 2021 kern.info kernel: [23773.329618] ppp-stick: renamed from ppp0
Sat Jun 19 20:58:39 2021 daemon.info pppd[8175]: Renamed interface ppp0 to ppp-stick
Sat Jun 19 20:58:39 2021 daemon.info pppd[8175]: Using interface ppp-stick
Sat Jun 19 20:58:39 2021 daemon.notice pppd[8175]: Connect: ppp-stick <--> /dev/ttyUSB1
Sat Jun 19 20:59:09 2021 daemon.warn pppd[8175]: LCP: timeout sending Config-Requests
Sat Jun 19 20:59:09 2021 daemon.notice pppd[8175]: Connection terminated.
Sat Jun 19 20:59:10 2021 daemon.notice pppd[8175]: Modem hangup
Sat Jun 19 20:59:10 2021 daemon.info pppd[8175]: Exit.
Sat Jun 19 20:59:10 2021 daemon.notice netifd: Interface 'stick' is now down

I'm not happy with the wifi workaround so i'd be very willing to try again if someone has concrete steps to try.

123serge123 · June 20, 2021, 3:02am

Are you sure that /dev/ttyUSB1 is correct device? Did you try /dev/ttyUSB0?

undef · June 20, 2021, 7:59am

hi Serge,
yes it try USB0 through 4, same result on all ports.

I can't be 100% sure USB1 is correct, but that's the one I get the AT responses from.

AndrewZ · June 20, 2021, 8:21am

There is a chance that other modem interfaces are occupied by option driver by mistake.
I would try to manually load qmi_wwan instead of option and test.

undef · June 20, 2021, 8:24am

Hi Andrew, how would i do that?
ie. how to force load qmi_wwan?

AndrewZ · June 20, 2021, 9:04am

Something like this:

echo "1-1:1.0" > /sys/bus/usb/drivers/option/unbind
echo "1-1:1.2" > /sys/bus/usb/drivers/option/unbind
echo "1-1:1.3" > /sys/bus/usb/drivers/option/unbind

Check the log for device disconnected messages.
Then:
echo "05c6 6000" > /sys/bus/usb/drivers/qmi_wwan/new_id
Check the log for messages similar to
qmi_wwan 1-1:1.0: cdc-wdm0: USB WDM device
Note the device name(s) and run a query like
uqmi -s -d /dev/cdc-wdm0 --get-capabilities

undef · June 20, 2021, 10:40am

Thanks Andrew,
i was successful in unloading the option driver/loading qmi - but I don't think that's it either:

Fri Apr  2 12:23:34 2021 kern.info kernel: [  828.517829] qmi_wwan 1-1:1.0: cdc-wdm0: USB WDM device
Fri Apr  2 12:23:34 2021 kern.info kernel: [  828.524237] qmi_wwan 1-1:1.0 wwan0: register 'qmi_wwan' at usb-1b000000.usb-1, WWAN/QMI device, 0e:74:e4:44:22:fb

but when the query I get:

Fri Apr  2 12:24:58 2021 kern.err kernel: [  911.823292] qmi_wwan 1-1:1.0: unknown notification 32 received: index 0 len 2

in the meantime, I got it to work in 19.07.7 with the original glinet firmware - using the option driver. so that does seem to be the correct route.

however, in the process i messed up the NOR and can't flash back to openwrt to see if it works in RC3 as well. (FWIW, can't flash anything to NOR, even via the built-in uboot page, force booting the AR300 - via devmode/switch or bootcount - in NOR results in uboot. sysupgrading from NAND to openwrt resulted in uboot as well.

Thanks for all the help, but I'm going with the original gl.inet firmware (at least for now), which is pretty much openwrt anyway,

Zap · June 20, 2021, 2:56pm

@undef Could you tell a little more about the option "driver"?

I have a similar problem