September 2013 - Bluetooth-dev

Re: Has the issue of connection problem after repeated connection/disconnect been fixed?
by Jason Conn 29 Sep '13

29 Sep '13

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Streaming Audio from Bluetooth Mic to Internal Speaker or Output Jack
by Michael Gordon 29 Sep '13

29 Sep '13

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Re: Background and locked iOS device BTLE scanning behavior changes in iOS 7
by William Henderson 28 Sep '13

28 Sep '13

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RE: Has the issue of connection problem after repeated connection/disconnect been fixed?
by Qinghui Tang 28 Sep '13

28 Sep '13

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Background and locked iOS device BTLE scanning behavior changes in iOS 7
by Brian Fudge 28 Sep '13

28 Sep '13

Hello, We are working on a system where two iOS devices can detect each other when both of them are in the background and both devices are locked. This worked fine under iOS 6. We've discovered that under iOS 7 this is no longer possible, despite what is stated in the documentation. This appears to be a decision made to optimize power consumption but breaks some important use cases. Here are the interesting observations: - A scanning device that is locked does not report any iOS peripherals that are also locked. - On some devices, like iPhone 5 and 5S, you only need to press the home button on the peripheral for the scanner to succeed and peripherals to be reported. - On other devices, like iPad and iPod Touch, you have to press the home button and unlock the peripheral for the scanner to succeed and peripherals to be reported. - A non-iOS device, such as an rMBP, can scan iOS peripherals that are in the background and locked. - All iOS devices can scan hardware peripherals (such as a health tracker) while the iOS device is in the background and locked. Has anyone else encountered this problem? I see a new option in scanForPeripheralsWithServices called CBCentralManagerScanOptionSolicitedServiceUUIDsKey but it doesn't seem to affect these types of scans. Is this a bug or was this functionality intentionally removed? Thanks, Brian _______________________________________________ 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: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Has the issue of connection problem after repeated connection/disconnect been fixed?
by H E R C R O M 28 Sep '13

28 Sep '13

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Re: BLE security
by Etan Kissling 26 Sep '13

26 Sep '13

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Re: iOS 7: crash during restore?
by William Henderson 26 Sep '13

26 Sep '13

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Re: iOS 7: crash during restore?
by Jason Conn 26 Sep '13

26 Sep '13

> I will file a bug, just wanted to make sure I'm not missing something… Much appreciated! I'll save you some trouble, though, because we're aware of this issue. If memory serves, it happens when there's a central subscribed to one of your characteristics when you're restored. This being the case, there unfortunately isn't really a workaround. On Sep 26, 2013, at 10:24 AM, William Henderson <william.c.henderson(a)gmail.com> wrote: > (yay, now we can talk about iOS 7!) > > I'm seeing the following crash when iOS tries to restore my app using the new Bluetooth state restoration API: > > Last Exception Backtrace: > 0 CoreFoundation 0x30a69e86 __exceptionPreprocess + 126 > 1 libobjc.A.dylib 0x3ad636c2 objc_exception_throw + 34 > 2 CoreFoundation 0x309a4f96 -[__NSDictionaryM setObject:forKey:] + 814 > 3 CoreBluetooth 0x3079b794 -[CBPeripheralManager centralFromArgs:] + 264 > 4 CoreBluetooth 0x3079c186 __44-[CBPeripheralManager handleRestoringState:]_block_invoke + 54 > 5 CoreFoundation 0x309ae1be __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 86 > 6 CoreFoundation 0x309ae0f0 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 228 > 7 CoreBluetooth 0x3079beda -[CBPeripheralManager handleRestoringState:] + 1254 > 8 CoreBluetooth 0x30798bc2 __34-[CBXpcConnection handleMsg:args:]_block_invoke + 74 > 9 libdispatch.dylib 0x3b2480fe _dispatch_call_block_and_release + 6 > 10 libdispatch.dylib 0x3b24ce72 _dispatch_queue_drain + 370 > 11 libdispatch.dylib 0x3b249f96 _dispatch_queue_invoke + 38 > 12 libdispatch.dylib 0x3b24d74c _dispatch_root_queue_drain + 72 > 13 libdispatch.dylib 0x3b24d9cc _dispatch_worker_thread2 + 52 > 14 libsystem_pthread.dylib 0x3b377dfa _pthread_wqthread + 294 > 15 libsystem_pthread.dylib 0x3b377cc0 start_wqthread + 4 > > Anyone else seen this and/or know what might be going on? I will file a bug, just wanted to make sure I'm not missing something... > > -- > William > > _______________________________________________ > 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: > https://lists.apple.com/mailman/options/bluetooth-dev/conn%40apple.com > > This email sent to conn(a)apple.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: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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iOS 7: crash during restore?
by William Henderson 26 Sep '13

26 Sep '13

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