qmicli / Sierra EM7455

[Sebastian Sjoholm]

The hardware is actually an Hummingboard Gate from Solid-Run, it has an
mPCIe slot where I have been using an range of modems with good success.
Since the EM7455 is M.2, I have an M.2 to mPCIe adapter in the mPCIe slot.

No special design for EM7455, so the mPCIe slot only have the USB 2
connectivity, therefor you don't see any superspeed.

Bus 002 Device 003: ID 1199:9071 Sierra Wireless, Inc.
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x1199 Sierra Wireless, Inc.
  idProduct          0x9071
  bcdDevice            0.06
  iManufacturer           1 Sierra Wireless, Incorporated
  iProduct                2 EM7455
  iSerial                 0

I still seem to have issue with DHCP from the modem after qmicli has done
the connection, but I get back to that in a moment.

Regards,
Sebastian



On Thu, Mar 10, 2016 at 9:21 AM, Bjørn Mork <bjorn at mork.no> wrote:

> Sebastian Sjoholm <sebastian.sjoholm at gmail.com> writes:
>
> > Hi,
> >
> > When using the latest version from git master, it will work.
> >
> > root at x046:~# qmicli -d /dev/cdc-wdm0 --dms-get-model
> > [/dev/cdc-wdm0] Device model retrieved:
> >         Model: 'EM7455'
>
> Great!
>
> Now I am more curious than your average cat as usual, so I just have to
> ask a few questions :)
>
> This looks like an interesting platform:
>
> > Linux x046 4.5.0-rc7-NONAME-00337-g7f02bf6 #1 SMP Wed Mar 9 14:41:03 CET
> 2016 armv7l GNU/Linux
>
> Are you able to share any details?  This is an embedded gizmo with an
> m.2 slot?  A tablet of some kind?  Or a Chromebook?  Did it come with the
> EM7455
> originally, or did you add that?
>
> > [    1.406957] usb 2-1: new high-speed USB device number 2 using ci_hdrc
>
> This was more than a bit surprising to me, if this really is a platform
> designed with an EM7455 in mind.  I expected to see super-speed here.
> Why isn't there an xhci controller wired up to the m.2 slot?
>
> (this isn't a problem - it will work fine with USB2 only. I use an
> MC7455 like that.  Just curious)
>
> And finally: I have been guessing two different EM74xx device IDs
> lately, based on documentation only since you are the first user I've
> seen with one of these modules.  Could you please tell me the device ID
> of your EM7455?
>
>
> Bjørn
>



-- 

Sebastian Sjöholm

Störtloppsvägen 24 LGH 1103
SE-12947 Hägersten
Sverige

Mobile : +46 76 335 0667
Email : sebastian.sjoholm at gmail.com
Skype : ssjoholm
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