HE910 mini PCIe USB initialization problem (EDITED)

3 thoughts on “HE910 mini PCIe USB initialization problem (EDITED)”

1. I have an HE910 mini PCIe board with SIM holder (LOT: 0813, IC: 5131A-HE910) that doesn’t initialize properly on USB in two different laptops running Ubuntu Linux 12.04:

   – in the first laptop (Acer Inspire 1830T), the device seems to simply be absent from USB (lsusb shows nothing)

   – in the second laptop (Lenovo W520), only the Infineon (bootloader?) device shows, but it continuously disconnect and reconnects:

    

   [  676.950760] usb 2-1.4: new high-speed USB device number 87 using ehci_hcd

   [  677.044078] usb 2-1.4: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 255, changing to 11

   [  677.044928] cdc_acm 2-1.4:1.0: This device cannot do calls on its own. It is not a modem.

   [  677.045041] cdc_acm 2-1.4:1.0: ttyACM0: USB ACM device

   [  678.054051] usb 2-1.4: USB disconnect, device number 87

   [  678.994489] usb 2-1.4: new high-speed USB device number 88 using ehci_hcd

   [  679.087806] usb 2-1.4: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 255, changing to 11

   [  679.088683] cdc_acm 2-1.4:1.0: This device cannot do calls on its own. It is not a modem.

   [  679.088797] cdc_acm 2-1.4:1.0: ttyACM0: USB ACM device

   [  680.097676] usb 2-1.4: USB disconnect, device number 88

   [  681.038245] usb 2-1.4: new high-speed USB device number 89 using ehci_hcd

   [  681.131687] usb 2-1.4: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 255, changing to 11

   [  681.132552] cdc_acm 2-1.4:1.0: This device cannot do calls on its own. It is not a modem.

   [  681.132666] cdc_acm 2-1.4:1.0: ttyACM0: USB ACM device

   [  682.141544] usb 2-1.4: USB disconnect, device number 89

   [  683.082149] usb 2-1.4: new high-speed USB device number 90 using ehci_hcd

   [  683.175579] usb 2-1.4: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 255, changing to 11

   [  683.176421] cdc_acm 2-1.4:1.0: This device cannot do calls on its own. It is not a modem.

   [  683.176532] cdc_acm 2-1.4:1.0: ttyACM0: USB ACM device

   [  684.185364] usb 2-1.4: USB disconnect, device number 90

   [  685.125704] usb 2-1.4: new high-speed USB device number 91 using ehci_hcd

   [  685.219323] usb 2-1.4: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 255, changing to 11

   [  685.220151] cdc_acm 2-1.4:1.0: This device cannot do calls on its own. It is not a modem.

   [  685.220263] cdc_acm 2-1.4:1.0: ttyACM0: USB ACM device

    

   Any ideas what be wrong here? 

   1. There is a doc "HE-GE Linux USB Driver – User Guide" saying the following – maybe thekernel module isn’t present at least in one installation, or not loaded?

       

      Loading the driver
      Linux OS includes a generic USB driver for modems supporting the CDC ACM specification in the form of
      a kernel module (called cdc-acm): this driver works well without customization for HE-GE module.
       
      Most recent  Linux distributions do not require any user action in order to load this driver: it is enough to
      simply plug the USB cable.
       
      If the modem is recognized by the operating system seven devices will be created:
       
      /dev/ttyACM0
      /dev/ttyACM1
      /dev/ttyACM2
      1
       
      /dev/ttyACM3
      1
       
      /dev/ttyACM4
      1
       
      /dev/ttyACM5
      1
       
      /dev/ttyACM6
      1
       
       
      Of those only the following devices can be used: generic port for AT commands
       
      /dev/ttyACM0: data port for PPP connections and AT commands
      /dev/ttyACM3
      2
      : generic port for AT commands
       
      If no devices are created in your system check for the existence of the kernel module:
       
      # lsmod | grep cdc_acm
       
      If no entries are found, load the kernel module, with root privileges:
       
      # modprobe cdc-acm 
       
      If an error response is returned, such as:
       
      # FATAL: Module cdc-acm not found
       
      this  means  that  the  kernel  module  is  not  present  in  your  system  and  it  should  be  built.  Refer  to  the  next
      paragraph for generic instructions. 

      1. Actually, cdc-acm is present on all instalations.

          

         But the problem is that only the bootloader USB device (058b:0041) is briefly present on the USB bus – each time followed by a disconnection. So this doesn’t even get to the point where cdc-acm could pick up.

          

         I have in the mean time tried to same module in a desktop via a PCIe-to-MiniPCIe adapter and it works there.

          

         So I suspect this has somehow to do with the electrical level initialization off the various MiniPCI-e lines? The laptops must be doing something different that the module doesn’t like?

          

         I’d really appreciate some help as I’m planning to test this in a laptop for mobility – but so far could not get it to work.