LPC Link2 (JLink firmware) on linux virtual machine not working anymore

[lpcware]

Content originally posted in LPCWare by fzfq3m on Sat Jun 21 11:30:00 MST 2014
Hi
I'm having issues with my LPC Link 2 with JLink firmware, to make a long history short: It was working but I messed up the OS and had to rebuild the virtual machine from scratch, now JLinkExe keeps saying that is unable to connect to the adapter through USB even if I run it with elevated privileges (sudo). I also tried using a different visualization package (was using vmware but also tried virtualbox) and different linux distros but no luck so far.

I also tried to downgrade the version of JLink software I'm using but after trying at least 5 older versions without being able to get it working I just stopped trying. One thing I noticed is that when issuing the command showemulist I got the following:

J-Link[0]: Connection: USB, Serial number: 0, ProductName: J-Link

As you can see the adapter is listed but JLinkExe fails to read the serial number, I can access adapter's info using "lsusb -v -d 1366:0101" and as you can see in following output it does retrieves the correct serial number

sudo lsusb -v -d 1366:0101

Bus 001 Device 003: ID 1366:0101 SEGGER J-Link ARM
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x1366 SEGGER
  idProduct          0x0101 J-Link ARM
  bcdDevice            1.00
  iManufacturer           1 SEGGER
  iProduct                2 J-Link
  iSerial                 3 000611000000
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0000
  (Bus Powered)

I also tried using JLink selemu command but it won't work either.
The virtual machine is running Archlinux 64bits (tried with 32 bits too) with lattest Segger Jlink software V4.86a.
I not sure what's wrong (apart from me not being able to remember which version of Jlink software I was working with)
Hope you can help me
Thanks in advance

[lpcware]

Content originally posted in LPCWare by fzfq3m on Mon Jun 30 05:52:39 MST 2014
I just found a way to get it working, if I unplug then plug the LPC Link 2 again while the VM still have the device connected... doing this causes the device enumerate again in archlinux and work as expected