/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/ttyUSB0/tty/ttyUSB0/dev
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.1/ttyUSB1/tty/ttyUSB1/dev
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.2/ttyUSB2/tty/ttyUSB2/dev
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.3/ttyUSB3/tty/ttyUSB3/dev
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.4/ttyUSB4/tty/ttyUSB4/dev
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/bsg/5:0:0:0/dev
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/block/sdb/dev
/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/scsi_generic/sg1/dev

this is sys tree i get when i plug in my modem. With this can u say whether
my modem is QMI capable? How to add VID/PID pair to the kernel driver
and recompile
it? Where can i get help? I tried to compile ModemManager and
NetworkManager from source a few weeks back, i managed to resolve many
dependencies but failed at a particular dependency i don't remember. Please
make suggestion on how to proceed.

Thanks!


On Tue, Jul 2, 2013 at 6:35 PM, Bjørn Mork <[email protected]> wrote:

> Aleksander Morgado <[email protected]> writes:
>
> > On 07/02/2013 01:13 PM, satya gowtham kudupudi wrote:
> >>
> >> forevery 30 seconds it says
> >> modem-manager[4621]: <debug> [1372763438.794236]
> >> [mm-generic-cdma.c:1145] get_signal_quality(): Returning saved signal
> >> quality 90
> >>
> >> what does Returning saved signal quality mean? Does it not getting it
> >> from modem? If so, what should i do to get current signal value?
> >
> > Your modem does expose several tty ports, but only one replies correctly
> > to our AT or QCDM probings; which means that you end up with one modem
> > which only has 1 port usable, and which also means that you end up not
> > being able to refresh signal quality while connected.
> >
> > But your modem (VID 0x19D2 PID 0xFFF1) is Qualcomm-based, so there's a
> > chance that it is a QMI-capable modem (and therefore manageable via the
> > QMI support in ModemManager >= 0.7.x); but I didn't see it listed in the
> > qmi-wwan kernel driver, so cannot really tell; you would need to check
> > that yourself by adding the VID/PID pair to the kernel driver and
> > recompiling it. Modems managed via QMI are able to update signal quality
> > while being connected.
> >
> > Bjørn, Dan, have you seen this ZTE-branded CDMA device before? Gobi1k
> maybe?
>
> Cannot remember seeing it, but that doesn't count much these days...
>
> I don't think it can be a Gobi device. I haven't seen the lsusb output
> or equvialent, but assuming that there is a 1-1 mapping between USB
> interfaces and ttyUSBx devices, then ttyUSB0 would not be an AT capable
> port if this was a Gobi device.
>
> But I do see "Revision:MDM6085-11" in the log, and the MDM6085 chipset
> is definitely a 3G EVDO Gobi chipset.  This doesn't necessarily mean
> that ZTE has licensed Gobi firmware for it, but it could mean that one
> of the unknown serial ports is actually a QMI/net port.
>
> We need probing or Windows *.inf files to tell more.
>
>
> Bjørn
>



-- 
*- Gowtham*
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