hci0:   Type: Primary  Bus: USB
    BD Address: 00:50:56:FE:FD:38  ACL MTU: 8192:128  SCO MTU: 64:128
    DOWN 
    RX bytes:503 acl:0 sco:0 events:22 errors:0
    TX bytes:336 acl:0 sco:0 commands:22 errors:0

