@majere How are you checking the status ? A normal lsusb should list the USB adapter. If you run dmesg | tail immediately after plugging it in, you should see if it's detected, something like this should be printed:
[ 2.305588] usb 1-1.2: new full-speed USB device number 4 using dwc_otg
[ 2.450005] usb 1-1.2: New USB device found, idVendor=0a12, idProduct=0001
[ 2.450023] usb 1-1.2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ 2.450031] usb 1-1.2: Product: CSR8510 A10
...
[ 3.595425] Bluetooth: Core ver 2.22
[ 3.595760] NET: Registered protocol family 31
[ 3.595767] Bluetooth: HCI device and connection manager initialized
[ 3.595794] Bluetooth: HCI socket layer initialized
[ 3.595810] Bluetooth: L2CAP socket layer initialized
[ 3.595851] Bluetooth: SCO socket layer initialized
[ 3.657289] usbcore: registered new interface driver btusb
If this is the product you're using, it should work without problems.