Connection Issues

[Reinhard Speyerer]

On Thu, Nov 19, 2020 at 01:40:35PM +0000, Paul Gildea wrote:
> Hi all,
> 
> A further question on this. When I echo into new_id to enumerate the usb
> ports, if I reset the modem with at+reset
> then the cdc and wwan interface never comes back? Is this expected?
> I note there is no way (that I can see) to reboot the modem with mbimcli?
> 
> [ 3391.410331] usb 2-4: USB disconnect, device number 3
> > [ 3391.410445] cdc_mbim 2-4:1.0 wwan2: unregister 'cdc_mbim'
> > usb-0000:00:14.0-4, CDC MBIM
> > [ 3391.415810] option 2-4:1.2: device disconnected
> > [ 3391.415919] option 2-4:1.3: device disconnected
> > [ 3391.416147] option 2-4:1.4: device disconnected
> > [ 3391.416439] option 2-4:1.5: device disconnected
> > [ 3404.281434] usb 2-4: new SuperSpeed Gen 1 USB device number 5 using
> > xhci_hcd
> > [ 3404.300648] usb 2-4: New USB device found, idVendor=1e2d,
> > idProduct=00b3, bcdDevice= 4.14
> > [ 3404.300653] usb 2-4: New USB device strings: Mfr=1, Product=2,
> > SerialNumber=3
> > [ 3404.300655] usb 2-4: Product: Cinterion PID 0x00B3 USB Mobile Broadband
> > [ 3404.300658] usb 2-4: Manufacturer: Cinterion
> > [ 3404.300660] usb 2-4: SerialNumber: ed425f8
> > [ 3404.310404] usb 2-4: Enable of device-initiated U1 failed.
> > [ 3404.310903] usb 2-4: Enable of device-initiated U2 failed.
> > [ 3404.311418] option 2-4:1.0: GSM modem (1-port) converter detected
> > [ 3404.311623] option 2-4:1.1: GSM modem (1-port) converter detected
> > [ 3404.311780] option 2-4:1.2: GSM modem (1-port) converter detected
> > [ 3404.311928] usb 2-4: GSM modem (1-port) converter now attached to
> > ttyUSB12
> > [ 3404.312384] option 2-4:1.3: GSM modem (1-port) converter detected
> > [ 3404.312567] option 2-4:1.4: GSM modem (1-port) converter detected
> > [ 3404.312687] usb 2-4: GSM modem (1-port) converter now attached to
> > ttyUSB14
> > [ 3404.312866] option 2-4:1.5: GSM modem (1-port) converter detected
> > [ 3404.313204] usb 2-4: GSM modem (1-port) converter now attached to
> > ttyUSB15
> 

Hi Paul,

some older versions of the option driver also try to bind to
the MBIM USB interfaces with new_id. Please retry with

# rmmod option
# modprobe option
# echo 1e2d 00b3 ff > /sys/bus/usb-serial/drivers/option1/new_id

Regards,
Reinhard