The Bluetooth device made by Atheros requires the firmware /lib/firmware/ar3k/AthrBT_0x11020000.dfu. May be you can find some RPM package containing it searching the net.

Debian packages required (Debian 8 Jessie):

apt-get install bluetooth bluez bluez-cups

Check that there are no errors during kernel loading:

dmesg | grep -i bluetooth
[    6.721506] Bluetooth: Core ver 2.20
[    6.721524] Bluetooth: HCI device and connection manager initialized
[    6.721529] Bluetooth: HCI socket layer initialized
[    6.721531] Bluetooth: L2CAP socket layer initialized
[    6.721539] Bluetooth: SCO socket layer initialized
[   18.143887] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   18.143895] Bluetooth: BNEP filters: protocol multicast
[   18.143903] Bluetooth: BNEP socket layer initialized

Verify that the Bluetooth device was found:

hciconfig
hci0:   Type: BR/EDR  Bus: USB
        BD Address: 70:18:8B:DF:B5:23  ACL MTU: 1022:8  SCO MTU: 183:5
        UP RUNNING 
        RX bytes:7730 acl:0 sco:0 events:151 errors:0
        TX bytes:1814 acl:0 sco:0 commands:87 errors:0

Enable the interface and scan for nearby devices:

hciconfig hci0 up
hcitool scan
Scanning ...
        64:6C:B2:7C:EA:C9       Par
        30:52:CB:4D:59:32       n/a
        60:36:DD:7D:A7:B9       PC6