open, close and open IOBluetoothRFCOMMChannel again

Subject: open, close and open IOBluetoothRFCOMMChannel again
From: developerlists <email@hidden>
Date: Sat, 4 Apr 2009 12:26:51 +0200

Hello List,

I have startet a project and run into a problem I could not solve.

short description:

1. openning the device

2. testing the device- > test is always OK, device is responsive as it should

3. getting address with: getAddress

4. closing device

5. try to open with the obtained address

openConnection is OK

it fails at

openRFCOMMChannelSync

with the error: "still exclusive open"

If you have a hint what I am doing wrong…

Thank you very much for help

Jürgen

Codeschema:

opening the device with DeviceSelector or IOBluetoothDeviceCreateWithAddress

I select a device with IOBluetoothDeviceSelectorController.

[deviceSelector runModal]

get the devices:

deviceArray = [deviceSelector getResults];

get the first device:

selectedDevice = (IOBluetoothDeviceRef)[deviceArray objectAtIndex:0];

selectedDevice = IOBluetoothDeviceCreateWithAddress(addr);

get the first service:

services = [((IOBluetoothDevice*)selectedDevice) getServices];

theService = [services objectAtIndex:0];

get the channel ID

[theService getRFCOMMChannelID:&rfcommChannelID];

then I open the device

[((IOBluetoothDevice*)selectedDevice) openConnection]

and get an commchannel

status = [((IOBluetoothDevice*)selectedDevice) openRFCOMMChannelSync:&mRFCOMMChannel withChannelID:rfcommChannelID delegate:self];

closing the device:

IOBluetoothDevice *device = [mRFCOMMChannel getDevice];

[mRFCOMMChannel setDelegate:nil];

[mRFCOMMChannel closeChannel];

IOBluetoothObjectRelease((IOBluetoothObjectRef)mRFCOMMChannel);

mRFCOMMChannel = nil;

[device closeConnection];

IOBluetoothObjectRelease((IOBluetoothObjectRef)device);

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