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Posted: **Fri Jul 03, 2015 3:11 pm**

I am on Archlinux, trying to use cfclient to connect to my CrazyFlie 2.0, using my CrazyRadio PA dongle. I followed the wiki instructions to install cfclient, but it simply doesn't find any CrazyRadio dongle (I get the error "Cannot find a Crazyradio Dongle" if I go to Crazyflie > Bootloader and click on Initialize).

I have configured the udev rules properly, and even if I run sudo cfclient, it doesn't find any dongle. I can however put the dongle on bootloader mode and I have upgraded its firmware to the latest, but yet, cfclient simply can't find any. This is the output from lsusb -d 1915:7777 -v :

Code: Select all

Bus 002 Device 023: ID 1915:7777 Nordic Semiconductor ASA 
Couldn't open device, some information will be missing
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x1915 Nordic Semiconductor ASA
  idProduct          0x7777 
  bcdDevice           99.53
  iManufacturer           1 
  iProduct                2 
  iSerial                29 
  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      0 
      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     0x0040  1x 64 bytes
        bInterval               6
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               6

It is plugged to a USB 2.0 port. How can I get this to work?

Posted: **Fri Aug 07, 2015 2:05 pm**

Are you running Archlinux natively or in a VM? If it is a VM, what's the host OS?

Posted: **Mon Aug 10, 2015 9:06 am**

Have you tried running the client with sudo? I'm guessing there still is some problem with permissions.

Posted: **Wed Aug 12, 2015 2:50 pm**

I am running natively and as I wrote in my first post, I have tried running it with sudo. It still doesn't work.

It has been many weeks now, can you please help me out? What could be the problem?

Posted: **Wed Aug 12, 2015 5:44 pm**

Have you tried using the Crazyradio on a different machine, different OS (e.g. Windows, Android)?

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