[PATCH 2/7] GPS is configurable by DGPS_ENABLE variable

[Aleksander Morgado]

On Sun, Mar 27, 2016 at 4:42 PM, Tomas Jura <tomas.jura1 at gmail.com> wrote:
> BTW: During the measurement I had serious problems with modem
> disconnections. The modem is MiniPCI card. The accompanying kernel message
> was:
>
> Mar 27 14:34:02 het kernel: cdc_wdm 4-4:1.5: wdm_int_callback - 0 bytes
> Mar 27 14:34:02 het kernel: cdc_wdm 4-4:1.6: wdm_int_callback - 0 bytes
> Mar 27 14:36:08 het kernel: usb 4-4: USB disconnect, device number 29
> Mar 27 14:36:08 het kernel: cdc_ether 4-4:1.7 wwan0: unregister 'cdc_ether'
> usb-0000:00:1d.7-4, Mobile Broadband Network Device
> Mar 27 14:36:08 het kernel: cdc_acm 4-4:1.9: failed to set dtr/rts
> <========== HERE
> Mar 27 14:36:13 het kernel: usb 4-4: new high-speed USB device number 30
> using ehci-pci
> Mar 27 14:36:14 het kernel: usb 4-4: New USB device found, idVendor=0bdb,
> idProduct=1900
> Mar 27 14:36:14 het kernel: usb 4-4: New USB device strings: Mfr=1,
> Product=2, SerialNumber=3
> Mar 27 14:36:14 het kernel: usb 4-4: Product: Ericsson F3507g Mobile
> Broadband Minicard Composite Device
> Mar 27 14:36:14 het kernel: usb 4-4: Manufacturer: Ericsson
> Mar 27 14:36:14 het kernel: usb 4-4: SerialNumber: 3541430203035820
>
> Have you seen something like this? What could be the reason? Power
> instability on battery?

That, or a firmware issue.

-- 
Aleksander
https://aleksander.es