October 2007 - Bluetooth-dev

Re: More than one bluetooth device?
by Dave Boydston 31 Oct '07

31 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com User-agent: Thunderbird 2.0.0.6 (Windows/20070728) Daniel, Dave Boydston 805.964.8883 x115 866.546.4523 FAX Serialio.com - Bringing your bright ideas to Life Hi Tim, --Daniel On Oct 31, 2007, at 3:59 PM, Tim Hewett wrote: Daniel, Tim. On 31 Oct 2007, at 19:01, bluetooth-dev-request(a)lists.apple.com wrote: Can a mac have more than one bluetooth device? I tried plugging in a dongle, and I believe what happened was that the dongle replaced the builtin bluetooth device. Also the api for finding out info about the bluetooth device seems to only support one device. Is there a definitive answer? _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/daveb%40serialio.com This email sent to daveb(a)serialio.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… Assuming its an OS X supported dongle it will take BT control from internal Mac BT. Daniel Birns wrote: Thanks for the feedback. The question is not one of having benefit. Here's the question: Today I bought a mouse that has a usb-bt dongle in the box. Say I'm a naive user. I put it on my computer, not knowing anything. What's going to happen? Actually I'm going to find out soon, because I'm going to try it! I don't expect there would be any benefit of having more than one Bluetooth interface active, it may make things worse as they may interfere with each other. I say that on the basis that all Bluetooth comms occur in the same frequency band, with frequency hopping used to help reduce collisions between independent devices. The only benefit I could see is when the devices are different classes, e.g. using a class 1 device for services which need greater range, but a lower power one for short range things like keyboard and mouse. This would be a conscientious way to reduce your interference impact on your neighbours. --Daniel This email sent to site_archiver(a)lists.apple.com

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Re: More than one bluetooth device?
by Daniel Birns 31 Oct '07

31 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:in-reply-to:references:mime-version:content-type:message-id:cc:content-transfer-encoding:from:subject:date:to:x-mailer; bh=Io04XS4OA6x6PDCwPmVEiVUb9fuZAyXUsBBwfa6C69o=; b=GET/TuuHjlkk6McL7bDcAe7bP6GZxYHMO7oaVZ3Ei73QhUkyVTmhjU8Vu4UV6rK2vG+JHWgP7XR/TgxvOPn57RxtIJvI9fBehdagchLIN57ibdncivEwmUZDAF5oswP8rgwUWmQWDG6zhS2am07U8LVmuWY1ciqe/GKBCu6napU= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:in-reply-to:references:mime-version:content-type:message-id:cc:content-transfer-encoding:from:subject:date:to:x-mailer; b=YucNzLd1jmLLe84u4pdcPVgBPwGrhiw8DTAO/mv3WTnsQME2GfqNGl5rRQNHTfJQlEha6mbb3ghmR0NLSZkGweeTgfH27wCEvJjzlfaMg/0xcNJefesAoqlVZPy6F4xriX405WHB0qIuBKqzQ9t/q0HuU8BcuWhhRPoGVdq/R08= Hi Tim, --Daniel On Oct 31, 2007, at 3:59 PM, Tim Hewett wrote: Daniel, Tim. On 31 Oct 2007, at 19:01, bluetooth-dev-request(a)lists.apple.com wrote: Can a mac have more than one bluetooth device? I tried plugging in a dongle, and I believe what happened was that the dongle replaced the builtin bluetooth device. Also the api for finding out info about the bluetooth device seems to only support one device. Is there a definitive answer? _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… Thanks for the feedback. The question is not one of having benefit. Here's the question: Today I bought a mouse that has a usb-bt dongle in the box. Say I'm a naive user. I put it on my computer, not knowing anything. What's going to happen? Actually I'm going to find out soon, because I'm going to try it! I don't expect there would be any benefit of having more than one Bluetooth interface active, it may make things worse as they may interfere with each other. I say that on the basis that all Bluetooth comms occur in the same frequency band, with frequency hopping used to help reduce collisions between independent devices. The only benefit I could see is when the devices are different classes, e.g. using a class 1 device for services which need greater range, but a lower power one for short range things like keyboard and mouse. This would be a conscientious way to reduce your interference impact on your neighbours. --Daniel This email sent to site_archiver(a)lists.apple.com

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Re: More than one bluetooth device?
by Tim Hewett 31 Oct '07

31 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Daniel, Tim. On 31 Oct 2007, at 19:01, bluetooth-dev-request(a)lists.apple.com wrote: Can a mac have more than one bluetooth device? I tried plugging in a dongle, and I believe what happened was that the dongle replaced the builtin bluetooth device. Also the api for finding out info about the bluetooth device seems to only support one device. Is there a definitive answer? _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… I don't expect there would be any benefit of having more than one Bluetooth interface active, it may make things worse as they may interfere with each other. I say that on the basis that all Bluetooth comms occur in the same frequency band, with frequency hopping used to help reduce collisions between independent devices. The only benefit I could see is when the devices are different classes, e.g. using a class 1 device for services which need greater range, but a lower power one for short range things like keyboard and mouse. This would be a conscientious way to reduce your interference impact on your neighbours. --Daniel This email sent to site_archiver(a)lists.apple.com

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Simultaneous use of multiple bluetooth transmitters (USB dongles)
by Tom McKaige 31 Oct '07

31 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Thread-index: Acgb4vuT1rAhMn5TQTSHELN6sygstA== Thread-topic: Simultaneous use of multiple bluetooth transmitters (USB dongles) _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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A better Way to detect a broken pairing?
by Martin Häcker 31 Oct '07

31 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Hi there, So please, can anybode, give me a hint? Thanks a lot, Martin Häcker (well, today's not my day) _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… even after searching the Docs, the net and this list archive in particular, I didn't find a better way to detect a not anymore working bluetooth pairing than this: -- snip -- + (BOOL)deviceHasStalePairing:(BluetoothDeviceAddress) aDeviceAddress { IOBluetoothDevice* aDevice = [IOBluetoothDevice withAddress: &aDeviceAddress]; if ( ! aDevice) return NO; if ( ! [aDevice isPaired]) return NO; if (noErr != [aDevice openConnection]) return NO; if ( ! [aDevice isConnected]) { NSLog(@"[aDevice isConnected] returned false, but opening a connection worked fine, so we assume the pairing is broken / stale"); return YES; } // if the pairing is deleted on the mobile, this will sadly put up a password dialog on the mac // TODO: find an api which gives the same result, but doesn't put up this dialog IOReturn err = [aDevice requestAuthentication]; if (noErr != err) { NSLog(@"[aDevice requestAuthentication] returned: %d so we assume it's pairing is broken / stale", err); return YES; } return NO; } -- snap -- However, as you can see from the comment, this has the severe problem, that it a) catches a bit too much (some devices sometimes return error codes like 2, 6, 16, 19, 23, 26 and whatnot) of which we are not completely sure what they mean for the connection - especially if we get a 2 from requestAuthentication everything seems to still work. So I am searching for a different api, that gives me this information in a cleaner format, that is, that tells me straight out: can I communicate with this device, or do I need to create a new pairing? This API should also NOT try to reestablish the pairing on its own! (This last bit is quite important to me, as the GUI that provides is quite... not good). This email sent to site_archiver(a)lists.apple.com

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Re: More than one bluetooth device?
by Daniel Birns 31 Oct '07

31 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:in-reply-to:references:mime-version:content-type:message-id:cc:content-transfer-encoding:from:subject:date:to:x-mailer; bh=1qyRqPndHwQbj+YATv7RdDVYnaoGATCdW7vg0CyvV80=; b=uYkHCsyiH46jH3E+rS1Sgl4yfiN849wr2NJ1HtKzn/EEQ+dJYjeZXQxrfOswbotPAFNl2Fl3RaZk+hXusef3AKbLFsNRKeeneXaU3J+TeI8CSK6wx4nmY42fNsFjAyFuQAPvYazR/+QSF9Cra5jufXSVMmbNWXJC4UrFjLuECsA= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:in-reply-to:references:mime-version:content-type:message-id:cc:content-transfer-encoding:from:subject:date:to:x-mailer; b=Hw4wJC7xdkC6zbkfA6yXs4F03ErjGb94wblXrWfpD8d203mZ7ciOPdMEs7dYrHHGxRDCBxNbhU03BTxmdJ7iBlE3cF7cWtgakGBrA87xHvMkOiqn3YgYTlI4baYJKKiAOnncaIuGzF8nF++tzB/1+h6iG6XzrW1XnsTswMh6U/I= David, On Oct 30, 2007, at 7:52 PM, David Boydston wrote: On Oct 30, 2007, at 7:46 PM, Daniel Birns wrote: _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… One way is to use one or more of these (assuming you only want to do Spp) http://serialio.com/products/Bluetooth/BlueSnap/index.php Okay -- the question is: how does this appear to this OS? An opaque USB device, or does the OS recognize is at bluetooth, and support 2 bt devices, one with serial-port-profile? As I say, when I plugged in a bluetooth dongle on my macbook pro, it simply turned off the internal bt device... --Daniel Can a mac have more than one bluetooth device? I tried plugging in a dongle, and I believe what happened was that the dongle replaced the builtin bluetooth device. Also the api for finding out info about the bluetooth device seems to only support one device. Is there a definitive answer? --Daniel _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/daveb% 40serialio.com This email sent to daveb(a)serialio.com This email sent to site_archiver(a)lists.apple.com

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More than one bluetooth device?
by Daniel Birns 31 Oct '07

31 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:mime-version:content-type:message-id:content-transfer-encoding:from:subject:date:to:x-mailer; bh=KFB5ksDoD+HsQ+iWeX8fCZkMLkLbIg7qaHvWMcF0ENg=; b=jPub5gRw3AjST/UkXZaqkca6dvqgRWdmlVEdk4pnloqFGhCbTgpNJPlBWtGCZN80PH4zFf/qjRrqOCO/vgbhPkWmIq2DVxvISST49BHMMf0FeesQmCI3+fX/xGnsUYXcp8zxQ+x9G24xjWkyD22DMzvNGjY5t6TTetgrpSorYJE= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:mime-version:content-type:message-id:content-transfer-encoding:from:subject:date:to:x-mailer; b=X+mPr2k/d5KgmE+Utn4OucZSNUs5dhQKveWZ6aOYSbKIgOeKw3broHN4PiRh0BFzj8+tlOxKCw6UcKiGZlZzP67pN3pitJL4JyEHHIGKK88iqDAxvXMRkGxG1S8dT61dlDDy+NIE1U0dlOZaBPB5kB0eIFwg6m9eIRACWp5RWAk= --Daniel _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… Can a mac have more than one bluetooth device? I tried plugging in a dongle, and I believe what happened was that the dongle replaced the builtin bluetooth device. Also the api for finding out info about the bluetooth device seems to only support one device. Is there a definitive answer? This email sent to site_archiver(a)lists.apple.com

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Leopard and RFCOMM...
by Joseph Kelly 29 Oct '07

29 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Is there any known issues with RFCOMM running on Leopard? This was working on 10.4.10. If not, I'll file a bug. Joe K. _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… I can write data to my company's device, but every once in a while, I stop receiving expected data. This email sent to site_archiver(a)lists.apple.com

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A2DP + multipoint in leopard
by Roman Pixell 28 Oct '07

28 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com hello list, i havent installed leopard yet, and i dont have my stereo headset here. can anyone confirm A2DP, AVRCP and multipoint support in leopard? relevant links: http://mactasticsite.blogspot.com/2006/08/a2dp-finally-in-leopard.html http://www.phonenews.com/content/view/2463/9/ many thanks! med vänliga hälsningar / warmest regards, / ® roman pixell, freelancer http://www.linkedin.com/in/pixell karmatic experience group kåkbrinken 11a 3tr 111 27 stockholm email: roman(a)pixell.net AIM: doppler(a)mac.com MSN: roman(a)pixell.net ICQ: 3698764 skype: romanpixell cell: +46 709 10 35 51 _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… (please post what stereo headset model youre using and that the switching actually works with the multi-function button on the headset) This email sent to site_archiver(a)lists.apple.com

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Crasher reading Bluetooth devices in Leopard on PPC written on Tiger.
by William Jon Shipley 27 Oct '07

27 Oct '07

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com -W -- -- ALSO -- ANOTHER STACK: 0x124dbc: 0x00124dbc (in ExceptionHandling) 0x93df06ac: _objc_exception_throw (in libobjc.A.dylib) 0x936dfe50: +[NSException raise:format:] (in CoreFoundation) 0x936dfe88: +[NSException raise:format:] (in CoreFoundation) 0x9668ba20: __decodeObject_old (in Foundation) 0x9668b49c: __decodeValueOfObjCType (in Foundation) 0x966b0b54: -[NSUnarchiver decodeValueOfObjCType:at:] (in Foundation) 0x96672c78: -[NSArray(NSArray) initWithCoder:] (in Foundation) 0x9668b8bc: __decodeObject_old (in Foundation) 0x966a87f0: +[NSUnarchiver unarchiveObjectWithData:] (in Foundation) 0x12feb8: 0x0012feb8 (in IOBluetooth) 0x12fa9c: 0x0012fa9c (in IOBluetooth) 0x12f1b8: 0x0012f1b8 (in IOBluetooth) 0x12d230: 0x0012d230 (in IOBluetooth) 0x12ef30: 0x0012ef30 (in IOBluetooth) 0x12e3fc: 0x0012e3fc (in IOBluetooth) 0x606e0: 0x000606e0 (in Delicious Library) 0x603f8: 0x000603f8 (in Delicious Library) 0x33598: 0x00033598 (in Delicious Library) 0x94438c30: -[NSApplication run] (in AppKit) 0x94409930: _NSApplicationMain (in AppKit) 0xa4a0: 0x0000a4a0 (in Delicious Library) 0xa1a4: 0x0000a1a4 (in Delicious Library) ???: _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.… I just submitted a bug on this (using the longhand form, since bugreporter is down), but I thought it urgent enough to send to the list. A large number of our upgrading customers on PowerPC machines found our Delicious Library 1.6.6 crashes on launch, every time -- it turns out it's crashing deep in Apple's Bluetooth code, trying to read the list of paired or favorite devices from Tiger. Attached are the backtraces to three such crashes. With 100% of these customers, we had them blow away their Bluetooth devices in System Preferences under Leopard, and the app started to work fine again (under Leopard). We don't make any crazy calls into Bluetooth that I know of, as you can see from the backtraces. I expect this bug will affect other Bluetooth applications. NSArchiverArchiveInconsistency - *** NSUnarchiver: inconsistency between written and read data for object 0x1a004b40 { NSStackTraceKey = "0x124dbc 0x9471c6ac 0x94139e50 0x94139e88 0x958c7a20 0x958c749c 0x958ecb54 0x958aec78 0x958c78bc 0x958e47f0 0x12feb8 0x12fa9c 0x12f1b8 0x12d230 0x12ef30 0x12e3fc 0x606e0 0x603f8 0x33598 0x90e9dc30 0x90e6e930 0xa4a0 0xa1a4"; } STACK: 0x124dbc: NSExceptionHandlerExceptionRaiser (in ExceptionHandling) 0x9471c6ac: objc_exception_throw (in libobjc.A.dylib) 0x94139e50: +[NSException raise:format:] (in CoreFoundation) 0x94139e88: +[NSException raise:format:] (in CoreFoundation) 0x958c7a20: _decodeObject_old (in Foundation) 0x958c749c: _decodeValueOfObjCType (in Foundation) 0x958ecb54: -[NSUnarchiver decodeValueOfObjCType:at:] (in Foundation) 0x958aec78: -[NSArray(NSArray) initWithCoder:] (in Foundation) 0x958c78bc: _decodeObject_old (in Foundation) 0x958e47f0: +[NSUnarchiver unarchiveObjectWithData:] (in Foundation) 0x12feb8: -[IOBluetoothDevice(IOBluetoothDevicePrivate) updateFromAttributeDict:] (in IOBluetooth) 0x12fa9c: -[IOBluetoothDevice(IOBluetoothDevicePrivate) updateFromServer] (in IOBluetooth) 0x12f1b8: -[IOBluetoothDevice(IOBluetoothDevicePrivate) initWithIOService:address:] (in IOBluetooth) 0x12d230: +[IOBluetoothDevice withAddress:] (in IOBluetooth) 0x12ef30: +[IOBluetoothDevice(IOBluetoothDevicePrivate) withAddressString:] (in IOBluetooth) 0x12e3fc: +[IOBluetoothDevice favoriteDevices] (in IOBluetooth) 0x606e0: 0x000606e0 (in Delicious Library) 0x603f8: 0x000603f8 (in Delicious Library) 0x33598: 0x00033598 (in Delicious Library) 0x90e9dc30: -[NSApplication run] (in AppKit) 0x90e6e930: NSApplicationMain (in AppKit) 0xa4a0: 0x0000a4a0 (in Delicious Library) 0xa1a4: 0x0000a1a4 (in Delicious Library) ???: NSArchiverArchiveInconsistency - *** NSUnarchiver: inconsistency between written and read data for object 0x19a02460 STACK: 0x124dbc: NSExceptionHandlerExceptionRaiser (in ExceptionHandling) 0x918756ac: objc_exception_throw (in libobjc.A.dylib) 0x922c2264: +[NSException raise:format:] (in CoreFoundation) 0x922c229c: +[NSException raise:format:] (in CoreFoundation) 0x90ef601c: _decodeObject_old (in Foundation) 0x90ef5a98: _decodeValueOfObjCType (in Foundation) 0x90f1b014: -[NSUnarchiver decodeValueOfObjCType:at:] (in Foundation) 0x90edd274: -[NSArray(NSArray) initWithCoder:] (in Foundation) 0x90ef5eb8: _decodeObject_old (in Foundation) 0x90f12cb0: +[NSUnarchiver unarchiveObjectWithData:] (in Foundation) 0x12fe90: -[IOBluetoothDevice(IOBluetoothDevicePrivate) updateFromAttributeDict:] (in IOBluetooth) 0x12fa74: -[IOBluetoothDevice(IOBluetoothDevicePrivate) updateFromServer] (in IOBluetooth) 0x12f190: -[IOBluetoothDevice(IOBluetoothDevicePrivate) initWithIOService:address:] (in IOBluetooth) 0x12d208: +[IOBluetoothDevice withAddress:] (in IOBluetooth) 0x12ef08: +[IOBluetoothDevice(IOBluetoothDevicePrivate) withAddressString:] (in IOBluetooth) 0x12ed54: +[IOBluetoothDevice(IOBluetoothDevicePrivate) pairedDevices] (in IOBluetooth) 0x6070c: 0x0006070c (in Delicious Library) 0x603f8: 0x000603f8 (in Delicious Library) 0x1503b4: ReturnAllCurrentDevices (in IOBluetooth) 0x1504c8: IOBluetoothRegisterForNotifications (in IOBluetooth) 0x12d190: +[IOBluetoothDevice registerForConnectNotifications:selector:] (in IOBluetooth) 0x602d8: 0x000602d8 (in Delicious Library) 0x91871c74: _class_initialize (in libobjc.A.dylib) 0x918701d0: _class_lookupMethodAndLoadCache (in libobjc.A.dylib) 0x918820e8: objc_msgSend (in libobjc.A.dylib) 0x340bc: 0x000340bc (in Delicious Library) 0x33598: 0x00033598 (in Delicious Library) 0x94a0a594: -[NSApplication run] (in AppKit) 0x949db35c: NSApplicationMain (in AppKit) 0xa4a0: 0x0000a4a0 (in Delicious Library) 0xa1a4: 0x0000a1a4 (in Delicious Library) 0x1000: 0x00001000 (in Delicious Library) ???: NSArchiverArchiveInconsistency - *** NSUnarchiver: inconsistency between written and read data for object 0x79c5380 This email sent to site_archiver(a)lists.apple.com

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