July 2008 - Bluetooth-dev - lists.apple.com

Re: How to use multiple bluetooth devices?
by Thomas Winkler 10 Jul '08

10 Jul '08

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=gamma; h=domainkey-signature:received:received:cc:message-id:from:to :in-reply-to:content-type:content-transfer-encoding:mime-version :subject:date:references:x-mailer; bh=mFkIU3SHP3LffXfCtB7p6ktyJdo5Qkm3RjMzHp4CMlU=; b=Qu2FHSHO2w50tuBrm+3eOo9NqYCHSc9LTuAzD1aoRU202OA1F+EUwFVmzl3/8HGCWM ys+ZhVehBxUioyjzdLI8vUxvFuVwUjB6rxUNO5ymg2LPhStzuQk4dDPLDp6mi0JiacKZ +0jmVFxJ9QNOyp69K7luhE6IJRi2cKvgwlj6c= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=cc:message-id:from:to:in-reply-to:content-type :content-transfer-encoding:mime-version:subject:date:references :x-mailer; b=WcPWUWK1OcciSHIAil6Up9RogNbAd86TUzq7DzSi00uZdeXj1QFjN2NbbbRuhMrFPL rspgLAIXRPZDmyuIidlhT561GOLKMshX6MOYozVCyWJm6JvuZ4V8+WUBm8HGlliE321O 9kTIRIaKlJ0mxeQaULNXTvUrjNVSKuE2ogk18= Thomas On Jul 9, 2008, at 11:58 PM, Joseph Kelly wrote: Joe K. On Jul 9, 2008, at 2:18 PM, Thomas Winkler wrote: Hello, Any ideas are highly appreciated. Thanks, Thomas _______________________________________________ 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/joeman%40mac.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.… I know that one device can manage a few connections simultaneously (at least in theory) but if you want to exceed this number there is no other option than using a second or third device. Or is there? So, just to clarify: There is absolutely no way in OS X to make use of more than one bluetooth dongle/antenna/HCI at the same time? Even if you access the devices on a low hardware layer and do not use Apple's Bluetooth API? It can be done with Linux, so what's the issue with OS X? The Apple Bluetooth frameworks support communications with multiple devices, just not communication using more than one dongle/antenna/ HCI. I think the limit of allowable devices is 7 or 8, which is part of the Bluetooth spec iirc. according to some messages in the list archives it is not possible to use more than one bluetooth device at a time with the Bluetooth API. What I'd like to accomplish is to use multiple Bluetooth USB dongles that are connected to the Mac to send and receive files using OBEX to/from many different devices simultaneously. e.g. it should be possible to send different files to 3 different mobile phones while receiving files from 2 others and still do a device discovery at the same time. Since Apple's Bluetooth API seems to be limited to only one bluetooth device I'd like to know if there are any other ways to solve the problem. Is there a way to access the devices on a low- level layer and put a third-party Bluetooth API on top of it? This email sent to joeman(a)mac.com This email sent to site_archiver(a)lists.apple.com

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Re: How to use multiple bluetooth devices?
by Joseph Kelly 09 Jul '08

09 Jul '08

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Joe K. On Jul 9, 2008, at 2:18 PM, Thomas Winkler wrote: Hello, Any ideas are highly appreciated. Thanks, Thomas _______________________________________________ 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/joeman%40mac.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.… The Apple Bluetooth frameworks support communications with multiple devices, just not communication using more than one dongle/antenna/ HCI. I think the limit of allowable devices is 7 or 8, which is part of the Bluetooth spec iirc. according to some messages in the list archives it is not possible to use more than one bluetooth device at a time with the Bluetooth API. What I'd like to accomplish is to use multiple Bluetooth USB dongles that are connected to the Mac to send and receive files using OBEX to/from many different devices simultaneously. e.g. it should be possible to send different files to 3 different mobile phones while receiving files from 2 others and still do a device discovery at the same time. Since Apple's Bluetooth API seems to be limited to only one bluetooth device I'd like to know if there are any other ways to solve the problem. Is there a way to access the devices on a low- level layer and put a third-party Bluetooth API on top of it? This email sent to joeman(a)mac.com This email sent to site_archiver(a)lists.apple.com

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How to use multiple bluetooth devices?
by Thomas Winkler 09 Jul '08

09 Jul '08

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=gamma; h=domainkey-signature:received:received:message-id:from:to :content-type:content-transfer-encoding:mime-version:subject:date :x-mailer; bh=wWOQb7rrqK7tl0IlrH6ml0lfpI0Yhicz5Flps9+TnII=; b=BErYXYqJv+IfBg0FMFmaENxwMXP+vl4Yd/ZPL8caPurKXKKKUIM23rFbRNQI9MlfDb DQF8ibJm2uARjcalxEykKT4dA9iSxPU8Mjy4862vwkJH3dSG6n5eDMv8llGwX82I+Hfy Idq4LeRi+J3fJIawfFSY3LT5inTOtpoEib7m0= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:from:to:content-type:content-transfer-encoding :mime-version:subject:date:x-mailer; b=gib8+Yfe8E0Xk73vLPfg/8reAmk1g6/lGR7Uz0PfcNb7DrJvXcGMYPubMASk7H2hMg sw9PiZ1EeG64wNa9lMrhvFOJu5cp8zNEfBKDvEbAoqu3BBzJs/L5Ou82qjPFMJ7HH7XI 39ksz3YEgfU+KAi/xuXp0eXk6Oh5iSorIvPS4= Hello, Any ideas are highly appreciated. Thanks, Thomas _______________________________________________ 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.… according to some messages in the list archives it is not possible to use more than one bluetooth device at a time with the Bluetooth API. What I'd like to accomplish is to use multiple Bluetooth USB dongles that are connected to the Mac to send and receive files using OBEX to/ from many different devices simultaneously. e.g. it should be possible to send different files to 3 different mobile phones while receiving files from 2 others and still do a device discovery at the same time. Since Apple's Bluetooth API seems to be limited to only one bluetooth device I'd like to know if there are any other ways to solve the problem. Is there a way to access the devices on a low-level layer and put a third-party Bluetooth API on top of it? This email sent to site_archiver(a)lists.apple.com

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Re: kSearchOptionsDiscardCachedResults not working as expected.
by John Iversen 09 Jul '08

09 Jul '08

site_archiver(a)lists.apple.com Delivered-To: bluetooth-dev(a)lists.apple.com Hello, Thanks, John --- relevant code snippet --- _______________________________________________ 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.… New to the list (and bluetooth). It has been a pleasant and clearly documented experience so far, but I have come up against one confusing UI issue. Sorry if this question has already been covered, but I could not find it in the archives. I'm having a problem with cached bluetooth devices showing up in the IOBluetoothDeviceSelectorController UI panel even when I don't want them to. (This is on 10.5.4/9E17). In particular, cached devices show up even when setting the options field of IOBluetoothDeviceSearchAttributes to kSearchOptionsDiscardCachedResults. I expected this to exclude any cached results and start with a clean slate with the device inquiry process. (In addition, the display of cached devices doesn't obey restrictions imposed by specifying IOBluetoothDeviceSearchDeviceAttributes, and newly discovered devices chosen using this UI are cached even when the "remember this device" checkbox is unchecked.) Is my expectation of how these things should work wrong, or perhaps it is my execution? IOBluetoothDeviceSearchAttributes *searchAttributes = malloc(1,sizeof(IOBluetoothDeviceSearchAttributes)); searchAttributes->options = kSearchOptionsDiscardCachedResults; // doesn't work as expected searchAttributes->maxResults = 0; //infinite searchAttributes->deviceAttributeCount = 1; searchAttributes->attributeList = deviceAttributes; //works correctly to filter what new devices show up during inquiry, but doesn't affect cached ones IOBluetoothDeviceSelectorController *deviceSelector = [IOBluetoothDeviceSelectorController deviceSelector]; [deviceSelector setOptions:kIOBluetoothServiceBrowserControllerOptionsAutoStartInquiry ]; //is default from Leopard onwards [deviceSelector setSearchAttributes:searchAttributes]; //narrow search ...after setting the UI text, the UI is invoked using [deviceSelector runModal] This email sent to site_archiver(a)lists.apple.com

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