Re: choosing a RFCOMMChannel channelID ?

24 Jun 2004

      On 24 Jun 2004, at 15:02, Yann Bizeul wrote:
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Here is what I use in BuddyPop :
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IOBluetoothSDPServiceRecord	*dialupServiceRecord;

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BluetoothRFCOMMChannelID	rfcommChannelID;

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dialupServiceRecord = [device getServiceRecordForUUID: [

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IOBluetoothSDPUUID uuid16:
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kBluetoothSDPUUID16ServiceClassDialupNetworking] ];
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[dialupServiceRecord getRFCOMMChannelID:&rfcommChannelID];

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status = [ device openRFCOMMChannelAsync:&mRFCOMMChannel

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withChannelID:rfcommChannelID delegate: self ];
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Yes "kBluetoothSDPUUID16ServiceClassDialupNetworking" is what i wanted !
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I use kBluetoothSDPUUID16ServiceClassDialupNetworking because I see
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AddressBook use this channel (for the phones I tested). Since this is
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the same channel as AB, I gracefully free the connection when AB is
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launched, and re-establish it when it is quit.
how did you find this is the SDPUUID service used by AB ?
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I think this is the better way for application providing the same
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features as AB in a different way, like BuddyPop or your product.
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There would be conflicts if people install both your product and
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BuddyPop, but that's life !
i dont understand something : you mean that you detect the AB.app

launch, close your connection to let AB connect itself ? then at quit,

you reopen your connection ?

i suppose you have done this via NSWorkspace notifications ?
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Regards,
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Le 24 juin 04, ` 14:45, Aurilien Hugeli a icrit :
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hi !
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i'm creating a simple BlueTooth phone number dialer/SMS manager. I've
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succeeded creating a RFCOMMChannel to my T68i and i have avoided using
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/dev/modem unix style device connection.
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here is how i open the RFCOMMChannel :
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[mainBTDevice openRFCOMMChannelSync:&modemConnectionChannel
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withChannelID:1 delegate:self];
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the problem is how to choose my channelID: i have tried to do like
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Apple with their chat client/server example but it does not really
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work
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in my case because i do not need to publish a service...
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i've tried random channel from 0 to 10, only the channel from 1 to 5
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seems to work for me to connect to my T68i modem.
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How am i supposed to choose the channelID ? is it a manufacturer
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document ? can i be sure the channel is available and not already in
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use ? am i supposed to scan channelID until connection succeed ?
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Apple documentation is really poor an the subject, or i did not found
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it !
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thanks !
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--
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Yann Bizeul - yann at tynsoe.org
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http://projects.tynsoe.org/
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Aurélien Hugelé

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