make -C /lib/modules/4.2.0-19-generic/build M=/home/tux/rtbth-3.9.3 modules
make[1]: ingresso nella directory "/usr/src/linux-headers-4.2.0-19-generic"
  CC [M]  /home/tux/rtbth-3.9.3/rtbth_core_bluez.o
/home/tux/rtbth-3.9.3/rtbth_core_bluez.c: In function ‘rtbt_hci_dev_send’:
/home/tux/rtbth-3.9.3/rtbth_core_bluez.c:139:36: error: ‘struct bt_skb_cb’ has no member named ‘control’
    os_ctrl->sco_tx_seq = bt_cb(skb)->control.txseq;
                                    ^
/home/tux/rtbth-3.9.3/rtbth_core_bluez.c: At top level:
/home/tux/rtbth-3.9.3/rtbth_core_bluez.c:83:20: warning: ‘pkt_type_str’ defined but not used [-Wunused-variable]
 static const char *pkt_type_str[]=
                    ^
scripts/Makefile.build:258: set di istruzioni per l'obiettivo "/home/tux/rtbth-3.9.3/rtbth_core_bluez.o" non riuscito
make[2]: *** [/home/tux/rtbth-3.9.3/rtbth_core_bluez.o] Errore 1
Makefile:1398: set di istruzioni per l'obiettivo "_module_/home/tux/rtbth-3.9.3" non riuscito
make[1]: *** [_module_/home/tux/rtbth-3.9.3] Errore 2
make[1]: uscita dalla directory "/usr/src/linux-headers-4.2.0-19-generic"
Makefile:24: set di istruzioni per l'obiettivo "all" non riuscito
make: *** [all] Errore 2