June 2004 - Bluetooth-dev - lists.apple.com

dynamic discovery, and the bubba@apple.com posting
by Eric Flatt 30 Jun '04

30 Jun '04

I saw this on an old thread in the archives, wrt discovering remote devices not yet 'paired': < I guess I was wondering if I wanted to write an app without a GUI, how > I would find devices without using the various service and device > selector panels? But what you're saying is that "Apple have create GUI > based utilities for inquiring about remote devices." You are correct - you could not do it. You will need to display a panel at some point for the user to select a device/service. Unless you wanted to use the raw device address, which is less than optimal. We do hope to release an API to do this. If the lack of this API this is absolutely prohibitive to what you are trying to do, let us know and we'll escalate its importance on the to-do list.>> Was wondering if this API has ever come to pass, either in beta or elsewhere. I have no gui (am entirely command-line driven), and I need to make a discovery of what's in the vicinity of my my mac w/o user interaction.... so this API would be great. Thanks in advance for any pointers. -Eric _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Need Help: Device discovery
by Eric Flatt 30 Jun '04

30 Jun '04

I am looking for the API hook in the IOBluetooth framework to discover what services are "floating around" near my mac. I have found all the stuff required to bind to a bluetooth device after popping up the panel to browse for available devices, but what I'm trying to do is to NOT pop up the panel, and to browse for available devices entirely in code. Can anybody help me? Thanks in advance, -Eric _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

vNote
by Camille GOUREAU 28 Jun '04

28 Jun '04

Hi, does anybody know what should be the hearder for a vNote OBEXAddNameHeader( CFSTR( "test.vnt" ), window->mHeadersDictionary ); OBEXAddTypeHeader( CFSTR( "text/vNote"), window->mHeadersDictionary ); does not feet. Thanks. _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Re: choosing a RFCOMMChannel channelID ?
by Eric Brown 24 Jun '04

24 Jun '04

On Jun 24, 2004, at 6:46 AM, Yann Bizeul wrote: >>> I use kBluetoothSDPUUID16ServiceClassDialupNetworking because I see >>> AddressBook use this channel (for the phones I tested). Since this is >>> the same channel as AB, I gracefully free the connection when AB is >>> launched, and re-establish it when it is quit. >> >> how did you find this is the SDPUUID service used by AB ? > Because there *seem* to be standards saying channel ID 1 is > kBluetoothSDPUUID16ServiceClassDialupNetworking. And with > BluetoothMonitor, it seem AB always connect to channel ID 1 :-/ I > guess.... As you said, Apple lacks documentations and guidelines about > this. > Actually, there are no standards tying RFCOMM channel ID to service type. The Bluetooth spec defines many different profiles for various purposes - i.e. Serial Port Profile for direct serial access, Dial Up Networking for modem access, Object Push for sending files, etc... Each profile typically defines a service that gets published and a service class that identifies it. The RFCOMM channel ID for a specific service is dynamically assigned by the device and stored within its service record. A single device may define several services each with a unique RFCOMM channel ID. In order to find the RFCOMM channel ID to use, you must perform an SDP query to fetch the services and then look up the desired service using an appropriate UUID. In many cases the service class UUID is the right one to use. In the situation discussed earlier, the dial up networking service class is the correct one to be using since it will allow you to communicate with the built-in modem. The code sample shown earlier for BuddyPop is basically correct. I do have a couple of suggestions for changes to it however. It would probably be useful to call [device peformSDPQuery:] before calling -getServiceRecordForUUID: to make sure that the system has an up to date cache of the device's services. There is nothing preventing a device from dynamically re-assigning the services (although I don't think any existing devices do). Also, I would highly recommend checking the return code from -getRFCOMMChannelID: to protect against devices that might not have a complete service record. - Eric [demime 0.98b removed an attachment of type application/pkcs7-signature which had a name of smime.p7s] _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Re: choosing a RFCOMMChannel channelID ?
by Yann Bizeul 24 Jun '04

24 Jun '04

>> I use kBluetoothSDPUUID16ServiceClassDialupNetworking because I see >> AddressBook use this channel (for the phones I tested). Since this is >> the same channel as AB, I gracefully free the connection when AB is >> launched, and re-establish it when it is quit. > > how did you find this is the SDPUUID service used by AB ? Because there *seem* to be standards saying channel ID 1 is kBluetoothSDPUUID16ServiceClassDialupNetworking. And with BluetoothMonitor, it seem AB always connect to channel ID 1 :-/ I guess.... As you said, Apple lacks documentations and guidelines about this. >> I think this is the better way for application providing the same >> features as AB in a different way, like BuddyPop or your product. >> There would be conflicts if people install both your product and >> 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 ? You're right :-) I catch AB launch and Bluetooth File Exchange -- Yann Bizeul - yann at tynsoe.org http://projects.tynsoe.org/ _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Re: choosing a RFCOMMChannel channelID ?
by Aurélien Hugelé 24 Jun '04

24 Jun '04

On 24 Jun 2004, at 15:02, Yann Bizeul wrote: > Here is what I use in BuddyPop : > > IOBluetoothSDPServiceRecord *dialupServiceRecord; > BluetoothRFCOMMChannelID rfcommChannelID; > > dialupServiceRecord = [device getServiceRecordForUUID: [ > IOBluetoothSDPUUID uuid16: > kBluetoothSDPUUID16ServiceClassDialupNetworking] ]; > [dialupServiceRecord getRFCOMMChannelID:&rfcommChannelID]; > > status = [ device openRFCOMMChannelAsync:&mRFCOMMChannel > withChannelID:rfcommChannelID delegate: self ]; > Yes "kBluetoothSDPUUID16ServiceClassDialupNetworking" is what i wanted ! > I use kBluetoothSDPUUID16ServiceClassDialupNetworking because I see > AddressBook use this channel (for the phones I tested). Since this is > the same channel as AB, I gracefully free the connection when AB is > launched, and re-establish it when it is quit. how did you find this is the SDPUUID service used by AB ? > I think this is the better way for application providing the same > features as AB in a different way, like BuddyPop or your product. > There would be conflicts if people install both your product and > 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 ? > > Regards, > > Le 24 juin 04, ` 14:45, Aurilien Hugeli a icrit : > >> hi ! >> >> i'm creating a simple BlueTooth phone number dialer/SMS manager. I've >> succeeded creating a RFCOMMChannel to my T68i and i have avoided using >> /dev/modem unix style device connection. >> >> here is how i open the RFCOMMChannel : >> [mainBTDevice openRFCOMMChannelSync:&modemConnectionChannel >> withChannelID:1 delegate:self]; >> >> the problem is how to choose my channelID: i have tried to do like >> Apple with their chat client/server example but it does not really >> work >> in my case because i do not need to publish a service... >> >> i've tried random channel from 0 to 10, only the channel from 1 to 5 >> seems to work for me to connect to my T68i modem. >> >> How am i supposed to choose the channelID ? is it a manufacturer >> document ? can i be sure the channel is available and not already in >> use ? am i supposed to scan channelID until connection succeed ? >> >> Apple documentation is really poor an the subject, or i did not found >> it ! >> >> thanks ! >> _______________________________________________ >> bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com >> Help/Unsubscribe/Archives: >> http://www.lists.apple.com/mailman/listinfo/bluetooth-dev >> Do not post admin requests to the list. They will be ignored. >> >> >> > -- > Yann Bizeul - yann at tynsoe.org > http://projects.tynsoe.org/ _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Re: choosing a RFCOMMChannel channelID ?
by Aurélien Hugelé 24 Jun '04

24 Jun '04

On 24 Jun 2004, at 15:00, Petteri Kamppuri wrote: On 24.6.2004, at 15:45, Aurilien Hugeli wrote: How am i supposed to choose the channelID ? is it a manufacturer document ? can i be sure the channel is available and not already in use ? am i supposed to scan channelID until connection succeed ? I think the correct channelID depends on the service you are going to use on the Bluetooth device. I'm not sure of this. yes the problem here is hat i do not know what is the service since i did not publish it. i just want to communicate with the internal modem... and i dont know the name of this service ! This is what I use: // Find the correct serviceRecord on the device, maybe itarete through them all IOBluetoothSDPServiceRecord *serviceRecord = [self findCorrectServiceOnDevice:mainBTDevice]; if(serviceRecord == nil) { NSLog(@"ERROR Couldn't find right service for device '%@'", [mainBTDevice getNameOrAddress]); return; } IOReturn error = 0; BluetoothRFCOMMChannelID channelID = -1; // Correct service found, ask for the RFCOMM Channel ID error = [serviceRecord getRFCOMMChannelID:&channelID]; if(error == kIOReturnSuccess) { // Great, we found the channel ID! Now we can use it. [mainBTDevice openRFCOMMChannelSync:&modemConnectionChannel withChannelID:channelID delegate:self]; } Apple documentation is really poor an the subject, or i did not found it ! I think Apple needs to clarify and extend Bluetooth documentation. Also I'd like to see documents which actually tell how and why to use the API calls and what implications they have. And what are all the possible error codes and what should the program do when it gets a certain error code from a method. Despite of quite sparse documentation, I think that the Bluetooth API itself is very well thought of and quite elegant. Async methods are easy and handy to use. Thank you all at the Bluetooth Cocoa team! Maybe we'll see at the WWDC. yes i hope the WWDC BT session will learn us the arcane of IOKit for BT ! -- Petteri Kamppuri petteri.kamppuri(a)karppinen.fi MK&C _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Device discovery, howto?
by Eric Flatt 24 Jun '04

24 Jun '04

Hello all. I'm a newbie to MacOSX, but am attempting to write some code which queries what bluetooth devices are floating around the vicinity of my mac. Specifically, I'd like to be able to do the same as the Mac widget does, and, w/o any input from the user, fetch device names. If anyone has either references to code samples, or a decent web page with more bluetooth on Mac stuff (I've googled to no avail) than the chat client in /Developer, I'd be much obliged. Thanks in advance for any help. _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Re: choosing a RFCOMMChannel channelID ?
by Yann Bizeul 24 Jun '04

24 Jun '04

Here is what I use in BuddyPop : IOBluetoothSDPServiceRecord *dialupServiceRecord; BluetoothRFCOMMChannelID rfcommChannelID; dialupServiceRecord = [device getServiceRecordForUUID: [ IOBluetoothSDPUUID uuid16: kBluetoothSDPUUID16ServiceClassDialupNetworking] ]; [dialupServiceRecord getRFCOMMChannelID:&rfcommChannelID]; status = [ device openRFCOMMChannelAsync:&mRFCOMMChannel withChannelID:rfcommChannelID delegate: self ]; I use kBluetoothSDPUUID16ServiceClassDialupNetworking because I see AddressBook use this channel (for the phones I tested). Since this is the same channel as AB, I gracefully free the connection when AB is launched, and re-establish it when it is quit. I think this is the better way for application providing the same features as AB in a different way, like BuddyPop or your product. There would be conflicts if people install both your product and BuddyPop, but that's life ! Regards, Le 24 juin 04, ` 14:45, Aurilien Hugeli a icrit : > hi ! > > i'm creating a simple BlueTooth phone number dialer/SMS manager. I've > succeeded creating a RFCOMMChannel to my T68i and i have avoided using > /dev/modem unix style device connection. > > here is how i open the RFCOMMChannel : > [mainBTDevice openRFCOMMChannelSync:&modemConnectionChannel > withChannelID:1 delegate:self]; > > the problem is how to choose my channelID: i have tried to do like > Apple with their chat client/server example but it does not really work > in my case because i do not need to publish a service... > > i've tried random channel from 0 to 10, only the channel from 1 to 5 > seems to work for me to connect to my T68i modem. > > How am i supposed to choose the channelID ? is it a manufacturer > document ? can i be sure the channel is available and not already in > use ? am i supposed to scan channelID until connection succeed ? > > Apple documentation is really poor an the subject, or i did not found > it ! > > thanks ! > _______________________________________________ > bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com > Help/Unsubscribe/Archives: > http://www.lists.apple.com/mailman/listinfo/bluetooth-dev > Do not post admin requests to the list. They will be ignored. > > > -- Yann Bizeul - yann at tynsoe.org http://projects.tynsoe.org/ _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0

Re: choosing a RFCOMMChannel channelID ?
by Petteri Kamppuri 24 Jun '04

24 Jun '04

On 24.6.2004, at 15:45, Aurilien Hugeli wrote: How am i supposed to choose the channelID ? is it a manufacturer document ? can i be sure the channel is available and not already in use ? am i supposed to scan channelID until connection succeed ? I think the correct channelID depends on the service you are going to use on the Bluetooth device. I'm not sure of this. This is what I use: // Find the correct serviceRecord on the device, maybe itarete through them all IOBluetoothSDPServiceRecord *serviceRecord = [self findCorrectServiceOnDevice:mainBTDevice]; if(serviceRecord == nil) { NSLog(@"ERROR Couldn't find right service for device '%@'", [mainBTDevice getNameOrAddress]); return; } IOReturn error = 0; BluetoothRFCOMMChannelID channelID = -1; // Correct service found, ask for the RFCOMM Channel ID error = [serviceRecord getRFCOMMChannelID:&channelID]; if(error == kIOReturnSuccess) { // Great, we found the channel ID! Now we can use it. [mainBTDevice openRFCOMMChannelSync:&modemConnectionChannel withChannelID:channelID delegate:self]; } Apple documentation is really poor an the subject, or i did not found it ! I think Apple needs to clarify and extend Bluetooth documentation. Also I'd like to see documents which actually tell how and why to use the API calls and what implications they have. And what are all the possible error codes and what should the program do when it gets a certain error code from a method. Despite of quite sparse documentation, I think that the Bluetooth API itself is very well thought of and quite elegant. Async methods are easy and handy to use. Thank you all at the Bluetooth Cocoa team! Maybe we'll see at the WWDC. -- Petteri Kamppuri petteri.kamppuri(a)karppinen.fi MK&C _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

1 0