On Mon, 2015-01-12 at 11:04 -0500, Jeremy Moles wrote:
> On 01/12/2015 10:46 AM, Dan Williams wrote:
> > On Mon, 2015-01-12 at 10:12 -0500, Jeremy Moles wrote:
> >> On 01/09/2015 02:24 PM, Dan Williams wrote:
> >>> On Fri, 2015-01-09 at 12:14 -0500, Jeremy Moles wrote:
> >>>> On 01/09/2015 12:01 PM, Jeremy Moles wrote:
> >>>>> Hey everyone! I'm not entirely sure where else to ask this, and I'm
> >>>>> somewhat desperate at this point having tried everything I'm capable of.
> >>>>>
> >>>>> We have a machine here with the card listed in the subject. It shows
> >>>>> up in lsusb as:
> >>>>>
> >>>>> 1199:901f Sierra Wireless, Inc.
> >>>>>
> >>>>> It will work in Linux so far if--and ONLY IF--you boot into Windows
> >>>>> first and then soft reboot into Linux. it appears that Windows does
> >>>>> something to the modem that Linux (currently) does not, and I was
> >>>>> wondering if anyone here had any advice on what I might try.
> >>>>>
> >>>>> What I've done so far:
> >>>>>
> >>>>> 1) There is a knob in the sysfs hierarchy for this device that lets me
> >>>>> change the "config" (or something like that, I'm actually working on
> >>>>> this machine remotely and the customer isn't available right now!)
> >>>>> from 1 to 0, or 0 to 1. This ends up being necessary in fact, as after
> >>>>> doing so the tty's appear and the device is ready to be perturbed. It
> >>>>> responds to ATI commands and whatnot, but again, won't work properly
> >>>>> unless booted in Windows first. I should mention I found this knob
> >>>>> entirely by accident while hacking on qcserial and trying to accept
> >>>>> different "port" numbers as they enumerated themselves...
> >>>>>
> >>>>> 2) I downloaded the CodeAurora GobiSerial driver (which, according to
> >>>>> the changelog has a fix for "powering on" a device) and modified it to
> >>>>> work with 3.17 and 3.18 kernels (essentially, this involved
> >>>>> re-exporting usb-serial.c symbols like usb_serial_probe the code
> >>>>> relied on). However, I haven't had a chance to try this yet, and I'm
> >>>>> not entirely convinced (after looking through the code) it really does
> >>>>> anything qcserial doesn't.
> >>>>>
> >>>>> Anyways, if anyone has any advice, please let us know!
> >>>>> _______________________________________________
> >>>>> networkmanager-list mailing list
> >>>>> networkmanager-list@gnome.org
> >>>>> https://mail.gnome.org/mailman/listinfo/networkmanager-list
> >>>>>
> >>>> I should also mention I JUST found this thread:
> >>>>
> >>>> http://lists.freedesktop.org/archives/modemmanager-devel/2014-June/001301.html
> >>>>
> >>>> Which explains exactly what I was seeing when talking about my #1
> >>>> attempt (the config option in sysfs; again, it's miraculously I found
> >>>> that at all).
> >>>>
> >>>> I can't piece together everything the thread is talking about, but it
> >>>> may job someone's memory. I can also try e-mailing the author of that
> >>>> thread directly.
> >>> When it's cold-booted under Linux, can you grab 'lsusb -v -d 1199:901F'?
> >>> Also grab 'dmesg' output to see what driver messages there are.  Next,
> >>> if you have mbimcli installed, run 'sudo mmcli --firmware-list -m 0' and
> >>> lets see what we have.
> >>>
> >>> Next warm-boot from Windows to Linux and run 'sudo mmcli --firmware-list
> >>> -m 0' in case the previous one didn't work.
> >>>
> >>> Dan
> >>>
> >> Thank you for your reponse, Dan. I've attached the information you asked
> >> for to this e-mail, formatted in a way it can be easily diff'd/vimdiff'd
> >> at your leisure.
> >>
> >> You'll notice how the 'power-state' differs depending on the boot type.
> >> Also, the --firmware-list command failed to run, saying:
> >>
> >>       error: modem has no firmware capabilities
> > Yeah, I see now that the  modem is using QMI instead of MBIM.  So
> > instead, try these twice, once under Linux and once after rebooting from
> > Windows:
> 
> For the time being, I can only provide the information with the machine 
> being directly booted into Linux. When I have additional access later 
> today, I will provide the results of these commands after having booted 
> into Windows first. For now, however, read on...
> 
> # qmicli -d /dev/cdc-wdm0 --dms-list-stored-images
> error: couldn't list stored images: QMI protocol error (71): 
> 'InvalidQmiCommand'
> 
> # qmicli -d /dev/cdc-wdm0 --dms-get-operating-mode
> [/dev/cdc-wdm0] Operating mode retrieved:
>          Mode: 'low-power'
>          HW restricted: 'no'
> 
> # qmicli -d /dev/cdc-wdm0 --dms-lget-revision
> [/dev/cdc-wdm0] Device revision retrieved:
>          Revision: 'SWI9X15C_05.05.16.03 r22385 carmd-fwbuild1 
> 2014/06/04 15:01:26'
> 
> > qmicli -d /dev/cdc-wdm0 --dms-list-stored-images
> > qmicli -d /dev/cdc-wdm0 --dms-get-operating-mode
> > qmicli -d /dev/cdc-wdm0 --dms-get-revision
> >
> > THe other possibility is that the machine's rfkill handling isn't known
> > to Linux, but since Windows knows, when you warm-boot to Linux the WWAN
> > rfkill is disabled.  What model laptop is this?  (if it's a laptop)
> 
> This is a Lenovo W540 with the Gobi 5000 Lenovo-certified card installed.

Under Linux, can you use 'sudo minicom -D /dev/ttyUSBx' where x is the
number of each of the USB serial ports, and run "at!pcinfo" on each one
in turn?

Dan

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