tomtom serial connection

[Eric Anderson]

On 04/10/07 15:04, Vittorio De Martino wrote:
> I read in the internet that it is possible to connect the tomtom go gps to a 
> computer via bluetooth as a serial connection therefore  allowing a gps 
> program such as gpsdrive to read nmea data from it.
> 
> If I 
> 
> victor$ sdpcontrol -a tomtom browse
> 
> Record Handle: 00000000
> Service Class ID List:
>         Service Discovery Server (0x1000)
> Protocol Descriptor List:
>         L2CAP (0x0100)
>                 Protocol specific parameter #1: u/int/uuid16 1
>                 Protocol specific parameter #2: u/int/uuid16 1
> 
> Record Handle: 0x00010000
> Service Class ID List:
>         Browse Group Descriptor (0x1001)
> 
> But trying to connect it to a serial device:
> 
> victor$ rfcomm_sppd -a tomtom -t /dev/ttyp6
> rfcomm_sppd: Could not obtain RFCOMM channel: Attribute not found
> 
> 
> How can I make it?

I don't see RFCOMM in the list above.  Here's what I do (for my Rikaline 
bluetooth gps):

hccontrol -n ubt0hci inquiry
gives me something like:

Inquiry result, num_responses=1
Inquiry result #0
         BD_ADDR: 00:00:00:00:67:4f
         Page Scan Rep. Mode: 0x1
         Page Scan Period Mode: 00
         Page Scan Mode: 00
         Class: 00:00:00
         Clock offset: 0x44da

Then:
sdpcontrol -a 00:00:00:00:67:4f browse
Gives:
Record Handle: 0x00090001
Service Class ID List:
         Serial Port (0x1101)
Protocol Descriptor List:
         L2CAP (0x0100)
         RFCOMM (0x0003)
                 Protocol specific parameter #1: u/int8/bool 1

Then:
rfcomm_sppd -a 00:00:00:00:67:4f -t /dev/ttyp6

and in another xterm:
$ sudo cu -l /dev/ttyp6
Connected
$GPGGA,000156.20,0000.0000,N,00000.0000,E,0,00,0.00,0.00,M,0.00,M,,*6D
$GPGSA,A,1,,,,,,,,,,,,,0.00,0.00,0.00*00
$GPVTG,0.00,T,,,0.00,N,0.00,K,N*7F
$GPGLL,0000.0000,N,00000.0000,E,000156.20,V,N*71
$GPRMC,000156.20,V,0000.0000,N,00000.0000,E,0.00,0.00,220899,,,N*4E
[..snip..]

Eric