Comment 137 for bug 268502

lsusb: Bus 002 Device 003: ID 2001:f111 D-Link Corp. [hex] DBT-122 Bluetooth adapter

uname -a:Linux library 2.6.28-11-generic #34b268502v1 SMP Wed Mar 18 15:32:17 UTC 2009 i686 GNU/Linux (patched kernel)

I stop the daemon, take the dongle out and back in. Bingo:
sudo hciconfig hci0 up
hciconfig -a
hci0: Type: USB
 BD Address: 00:13:46:00:55:A0 ACL MTU: 377:10 SCO MTU: 16:0
 UP RUNNING
 RX bytes:342 acl:0 sco:0 events:10 errors:0
 TX bytes:35 acl:0 sco:0 commands:10 errors:0
 Features: 0xff 0xfe 0x0d 0x38 0x08 0x08 0x00 0x00
 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
 Link policy:
 Link mode: SLAVE ACCEPT
 Name: 'Broadcom BCM2035'
 Class: 0x000000
 Service Classes: Unspecified
 Device Class: Miscellaneous,
 HCI Ver: 1.2 (0x2) HCI Rev: 0x0 LMP Ver: 1.2 (0x2) LMP Subver: 0x309
 Manufacturer: Broadcom Corporation (15)

hcitool scan: Scanning ...
 00:13:70:0E:8A:77 Nokia 6021 (my phone is seen)

I start the daemon: sudo /etc/init.d/bluetooth start

hcitool scan: Scanning ...
Inquiry failed: Connection timed out

hciconfig -a
hci0: Type: USB
 BD Address: 00:13:46:00:55:A0 ACL MTU: 377:10 SCO MTU: 16:0
 UP RUNNING
 RX bytes:4866 acl:38 sco:0 events:187 errors:0
 TX bytes:1325 acl:34 sco:0 commands:44 errors:0
 Features: 0xff 0xfe 0x0d 0x38 0x08 0x08 0x00 0x00
 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
 Link policy:
 Link mode: SLAVE ACCEPT
Can't read local name on hci0: Connection timed out (110)

Conclusion: in my configuration the btusb kernel driver alone works, not with Bluez.