Bluetooth
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This page will give you all the informations needed to have a running Bluetooth configuration on your Armadeus board.
Contents
Hardware
First you have to get a compatible hardware. Currently there are 3 solutions:
- Get a Wireless extension board from armadeus systems (only available for APF27)
- Get a cheap USB<->Bluetooth adapter (requires an USB Host port)
- Get a RS232<->Bluetooth adapter
Tested hardware
| Model | Status APF9328 / APF27 |
Chipset | Comments | |
|---|---|---|---|---|
BELKIN - Mini Bluetooth Adapter  |
TBT | KO | Product: BLUETOOTH USB +EDR ADAPTER v2.1 UHE Manufacturer: Broadcom Corp |
# hciconfig hci1 up piscan
btusb_submit_intr_urb: hci1 urb c3bdac40 submission failed (28) |
TRUST - Bluetooth 2.1 USB Adapter  |
TBT | KO | Product: BCM2046B1 Manufacturer: Broadcom |
# hciconfig hci1 up piscan
btusb_submit_intr_urb: hci1 urb c3bdac40 submission failed (28) |
RUEDUCOMMERCE - Mini adaptateur USB Bluetooth  |
TBT | OK | Manufacturer: Cambridge Silicon Radio | |
GIGABYTE - GN-BTD01  |
TBT | OK | Manufacturer: Cambridge Silicon Radio | Bluetooth 1.1 ? |
Software
Bluetooth Linux stack is divided into several parts:
- kernel drivers
- userland libraries/daemon (bluez)
Driver installation
- (Done by default on APF27)
$ make linux26-menuconfig
[*] Networking support --->
<M> Bluetooth subsystem support --->
--- Bluetooth subsystem support
<M> L2CAP protocol support
<M> SCO links support
<M> RFCOMM protocol support
[*] RFCOMM TTY support
<M> BNEP protocol support
[ ] Multicast filter support (NEW)
[ ] Protocol filter support (NEW)
<M> HIDP protocol support
Bluetooth device drivers --->
<M> HCI USB driver
< > HCI SDIO driver (NEW)
<M> HCI UART driver
[*] UART (H4) protocol support
[*] BCSP protocol support
[ ] HCILL protocol support (NEW)
< > HCI BCM203x USB driver (NEW)
< > HCI BPA10x USB driver (NEW)
< > HCI BlueFRITZ! USB driver (NEW)
< > HCI VHCI (Virtual HCI device) driver (NEW)
$ make
Bluez installation
$ make menuconfig
Package Selection for the target --->
...
[*] XML handling --->
[*] libxml2
...
[*] Hardware handling / blockdevices and filesystem maintenance --->
[*] dbus
XML library to use (libxml2)
...
*** Armadeus specific packages ***
[*] bluez
$ make
Usage
Bring up
- Make sure your hardware is connected to the APF. If using an USB dongle, load corresponding driver:
# modprobe btusb Bluetooth: Core ver 2.14 NET: Registered protocol family 31 Bluetooth: HCI device and connection manager initialized Bluetooth: HCI socket layer initialized Bluetooth: Generic Bluetooth USB driver ver 0.4 usbcore: registered new interface driver btusb
- Check if Bluetooth interface was detected:
# hciconfig
hci0: Type: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:0 acl:0 sco:0 events:0 errors:0
TX bytes:0 acl:0 sco:0 commands:0 errors:0
- If interface is DOWN, bring it up:
# hciconfig hci0 up piscan
- Check your Bluetooth device is correctly initialized:
# hcitool dev
Devices:
hci0 00:10:60:D1:92:0F
Terminal through bluetooth
On the APF :
- the first step is to create the corresponding node for the future connection :
# mknod /dev/rfcomm0 c 216 0
- next, create an incomming connection, on the rfcomm0 channel 7 :
# rfcomm -i hci0 listen /dev/rfcomm0 7&
- and the last step, when the connection is open, is to connect a terminal (through getty) to the node /dev/rfcomm0 :
# getty 38400 /dev/rfcomm0
On the PC :
- after the two first steps on the APF, you need to connect the PC to the APF with the same channel :
# rfcomm connect 0 addr 7
- and configure minicom :
pu port /dev/rfcomm0 pu baudrate 38400 pu bits 8 pu parity N pu stopbits 1
- when getty is running on the APF, you could you connect with minicom.
Scanning network
# hcitool scan Scanning ...
