Re: Hardcoding a device's address

On Sat, Jun 24, 2006 at 02:05:34PM -0400, Jevin Maltais wrote:
> Hey everyone,
> 
> I would like to hardcode the address of the device I am connecting to
> as it won't change and so I can skip the discovery stage.  I'm using a
> modified version of Peter's BTSerialSample program.
> 


try using BtLibAddrAToBtd for a hard coded address.

Stuart


-- 
Stuart Eichert
Copera, Inc.
sceos@copera.com

Using the following globals:
	static BtLibDeviceAddressType deviceAddress;
	static BtLibFriendlyNameType deviceName;
And my gPreferences variable, which is a record/struct containing:
	Boolean			bluetoothEnabled;
	BtLibDeviceAddressType	bluetoothDeviceAddress;
	UInt8
bluetoothDeviceName[btLibMaxDeviceNameLength];
Of which a type/class and constant were taken from an BtLibTypes.h
include...
And after opening the appropriate library, establising libRefNum, I can
use the following function to obtain the address of the discovered and
selected device.  
This value is stored in gPreferences.bluetoothDeviceAddress, with the
name stored in gPreferences.bluetoothDeviceName.
I have tried using the callback notification, but find that if the
device has been discovered, it should always be cached and available
immediately.

//---- START CODE SNIPPET
static Boolean BluetoothDiscover(void)
{
	Err error;
	
	error = BtLibDiscoverSingleDevice(	libRefNum,
							NULL,
							NULL,
							0,
							&deviceAddress,
							false,
							true);
	switch (error) {
		case btLibErrNoError:
		    // Success.
		    break;
		    
		case btLibErrCanceled:
		    Log("User canceled the discovery.");
		    return false;
		    
		case btLibErrNotOpen:
		    Log("The referenced Bluetooth library is not
open.");
		    return false;
		    
		case btLibErrStackNotOpen:
		    Log("The Bluetooth stack failed to initialize when
the library was opened.");
		    return false;
		    
		default:
			Log("BtLibDiscoverSingleDevice() returned
unhandled Error");
			return false;
	}	
	
	MemMove(&gPreferences.bluetoothDeviceAddress, 
			&deviceAddress, 
			sizeof(gPreferences.bluetoothDeviceAddress));
	deviceName.name = (unsigned char
*)&gPreferences.bluetoothDeviceName[0];
	deviceName.nameLength =
sizeof(gPreferences.bluetoothDeviceName);
	error = BtLibGetRemoteDeviceName (	libRefNum,
 
&gPreferences.bluetoothDeviceAddress,
   							&deviceName,
 
btLibCachedThenRemote);	
	switch (error) {
		case btLibErrNoError:
		    // Success.
		    break;
		    
		case btLibErrBusy:
    		Log("There is already a name request pending.");
		    return false;

		case btLibErrNotOpen:
		    Log("The referenced Bluetooth library is not
open.");
		    return false;
		    
		case btLibErrPending:
			Log("The results will be returned through a
notification.");
		    return false;
		    
		case btLibErrStackNotOpen:
		    Log("The Bluetooth stack failed to initialize when
the library was opened.");
		    return false;
		    
		default:
			Log("BtLibGetRemoteDeviceName() returned
unhandled Error");
			return false;
	}	

	return true;
} 
//---- END CODE SNIPPET

Regards 
Jason

-----Original Message-----
From: bounce-507358-89538@news.palmos.com
[mailto:bounce-507358-89538@news.palmos.com] On Behalf Of Peter Easton
Sent: Monday, 26 June 2006 6:05 p.m.
To: Bluetooth Forum
Subject: Re: Hardcoding a device's address

Hi,

Try doing a discovery of a device with a known BdAddr and dumping out
the octets of the BdAddr.  My guess is that the octets are not ordered
in the way you might expect;  they might be reversed or byte-swapped.  I
think there was a posting to this forum a while back that explained
this.

Regards,

Peter 



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