WWAN card in ThinkPad X220

B

balanga

Without taking apart my ThinkPad X220 is there any way I can tell whether it contains a WWAN card?

And if it doesn't, can I insert one?
 
balanga said:
And if it doesn't, can I insert one?
Click to expand...
You can but the laptop would need to be pre-wired for cellular antenna in the lid.
balanga said:
Is there any way I can tell whether it contains a WWAN card?
Click to expand...
I would look in the battery compartment for a SIM slot. To use a cellular radio you also need a SIM slot.
The SIM slot is an easy indicator of an cellular-capable laptop.

https://www.notebookcheck.net/fileadmin/_processed_/csm_IMG_7045_Kopie_1dafe20fba.jpg
 
Just noticed:-

lsusb:-
Code: 
Bus /dev/usb Device /dev/ugen0.5: ID 04f2:b217 Chicony Electronics Co., Ltd Lenovo Integrated Camera (0.3MP)
Bus /dev/usb Device /dev/ugen0.4: ID 0a5c:217f Broadcom Corp. BCM2045B (BDC-2.1)
Bus /dev/usb Device /dev/ugen1.3: ID 1199:9013 Sierra Wireless, Inc. Sierra Wireless Gobi 3000 Modem device (MC8355)
Bus /dev/usb Device /dev/ugen1.2: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus /dev/usb Device /dev/ugen0.2: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus /dev/usb Device /dev/ugen1.1: ID 0000:0000 
Bus /dev/usb Device /dev/ugen0.1: ID 0000:0000

Sierra Wireless, Inc. Sierra Wireless Gobi 3000 Modem device (MC8355)

Now, how do I use it?
 
I think this device is not supported. There is a way to add it. Enter PID in u3g.c and usbdevs
Add this at line 4107 of /usr/src/sys/dev/usb/usbdevs
Code: 
product SIERRA MC8355        0x9013  MC8355

/usr/src/sys/dev/usb/serial/u3g.c Add at line 531
Code: 
    U3G_DEV(SIERRA, MC8355, 0),

Recompile kernel and see what you get.
The line numbers are based on FreeBSD 11.2-RELEASE source.
 
balanga said:
Now, how do I use it?
Click to expand...
PPP
So assuming you know nothing here is what I would do.
First check /dev/cuaU* entries with cu. See if anything answers. With no ProductID I doubt it.
So compile your custom kernel with support and then check /dev/cuaU* again.
Usually Sierra sticks their command port around /dev/cuaU0.2 or greater. On the MC7355 it was on cuaU0.3.
This module is similar to the MC7355 except it is 3G.
When you reach a usable serial console on the modem you will be typing AT commands just to verify all working. ATI for instance.

So once you get to the point where it is communicating with the USB/Serial subsystem you can start on making a PPP connection.
net/mpd5 is worth learning as it manages PPP connections.
 
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