May 2003 - Bluetooth-dev - lists.apple.com

Getting signal strength of a paired device?
by Rob McKeever 29 May '03

29 May '03

Does anyone know if there is a way to test the signal strength of a paired device that is currently within range? Thanks, -Rob robm(a)mac.com _______________________________________________ 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: Bluetooth Telephony & Mac OS X
by Christian L. Evans 28 May '03

28 May '03

I agree. And it would even be nice to use a bluetooth headset to do things like speech recognition or dictation. I am assuming the same support would need to be built in. Christian On Wednesday, May 28, 2003, at 10:41 AM, Craig Pugsley wrote: This is actually something that I have been seriously thinking about too... I'm nowhere near the level of skill required to be able to code parts of the bluetooth IO stack, but I do know that if such facilities were available, it would be a wonderful addition to the fantastic capabilities already available. One of the first things anyone who uses bluetooth with their computer asks is 'how can I use my bluetooth headset / internal mic as the input to my phone?' (me being one of them and a Win XP user I work with being another). There would be some serious WOW factor to being able to click 'accept call' when AddressBook.app informs that a call is coming in and then using the computer's audio in/out to take the call... Just my 2p's worth CraigP On Thursday, April 24, 2003, at 05:15 PM, Michael Larson wrote: Unfortunately we cannot comment on future releases at Apple, so I cannot say whether we are or are not working on SCO. What I can tell you is what is missing from the current implementation. Currently the Apple HCI controller driver does not open any of the SCO pipes to the USB device, so this is the major missing piece. Additionally, there is a hardware question to answer before you know if support will be possible with a given dongle. Some Bluetooth silicon will support SCO with the audio being piped across some external HW codecs and ports, which are not available on the USB bus, where others will provide access to incoming and outgoing audio data over the USB interface. So what is needed from the Bluetooth perspective is the addition of code to open and read/write the isochronous USB pipes on the Bluetooth dongle married with a USB dongle which can support the audio data piped over the USB interface. On top of the Bluetooth pieces that are missing is the code needed to pipe data into and out of the Mac OS X audio system. I am not very familiar with the audio system, and how to write drivers in that world, however that information can be found at: http://developer.apple.com/techpubs/macosx/Darwin/IOKit/ DeviceDrivers/Audio/WritingAudioDrivers/index.html -larson On Thursday, April 24, 2003, at 07:36 AM, Michael A. Crawford wrote: Is anyone currently working on adding these missing pieces (third party or Apple)? What underlying plumbing is missing for SCO? Is this missing plumbing hardware, software, or both? If all the hardware is there and no-one is about to release the missing software, maybe I can get to work on it. I've implemented protocols before, from OSI layer 2 on up. _______________________________________________ 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. _______________________________________________ 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. _______________________________________________ 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: Bluetooth Telephony & Mac OS X
by Craig Pugsley 28 May '03

28 May '03

This is actually something that I have been seriously thinking about too... I'm nowhere near the level of skill required to be able to code parts of the bluetooth IO stack, but I do know that if such facilities were available, it would be a wonderful addition to the fantastic capabilities already available. One of the first things anyone who uses bluetooth with their computer asks is 'how can I use my bluetooth headset / internal mic as the input to my phone?' (me being one of them and a Win XP user I work with being another). There would be some serious WOW factor to being able to click 'accept call' when AddressBook.app informs that a call is coming in and then using the computer's audio in/out to take the call... Just my 2p's worth CraigP On Thursday, April 24, 2003, at 05:15 PM, Michael Larson wrote: Unfortunately we cannot comment on future releases at Apple, so I cannot say whether we are or are not working on SCO. What I can tell you is what is missing from the current implementation. Currently the Apple HCI controller driver does not open any of the SCO pipes to the USB device, so this is the major missing piece. Additionally, there is a hardware question to answer before you know if support will be possible with a given dongle. Some Bluetooth silicon will support SCO with the audio being piped across some external HW codecs and ports, which are not available on the USB bus, where others will provide access to incoming and outgoing audio data over the USB interface. So what is needed from the Bluetooth perspective is the addition of code to open and read/write the isochronous USB pipes on the Bluetooth dongle married with a USB dongle which can support the audio data piped over the USB interface. On top of the Bluetooth pieces that are missing is the code needed to pipe data into and out of the Mac OS X audio system. I am not very familiar with the audio system, and how to write drivers in that world, however that information can be found at: http://developer.apple.com/techpubs/macosx/Darwin/IOKit/DeviceDrivers/ Audio/WritingAudioDrivers/index.html -larson On Thursday, April 24, 2003, at 07:36 AM, Michael A. Crawford wrote: Is anyone currently working on adding these missing pieces (third party or Apple)? What underlying plumbing is missing for SCO? Is this missing plumbing hardware, software, or both? If all the hardware is there and no-one is about to release the missing software, maybe I can get to work on it. I've implemented protocols before, from OSI layer 2 on up. _______________________________________________ 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. _______________________________________________ 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: OBEX objects
by Alexander Traud 25 May '03

25 May '03

> I want to e.g. send an SMS message to an Ericsson T68i phone, I would have to > know what object I should send/receive to the phone with a Put and Get > message. Do you want to send a SMS from the computer over a mobile phone to another mobile phone? Then you have to look into AT commands like Addressbook.app uses. These are standardized: http://www.traud.de/gsm/ Or if you want to send a note from the computer to a local Bluetooth mobile phone you have to send a "vNote" over OBEX (see OBEX IrMC). _______________________________________________ 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

OBEX objects
by Ivan Myrvold 25 May '03

25 May '03

>From what I have found out by doing some research on the Internet, OBEX is the way to go if I want to exchange objects with bluetooth-enabled devices. The IOBluetooth.framework looks promising. But say that I want to e.g. send an SMS message to an Ericsson T68i phone, I would have to know what object I should send/receive to the phone with a Put and Get message. Where can I obtain such information? Do I need to buy a development kit from Ericsson, or is this information freely available on the net? Ivan _______________________________________________ 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

Service Browser and Localization
by Morgan Redman 23 May '03

23 May '03

Hi, I have just started looking at the new bluetooth APIs in preparation of upgrading my existing application to use them. I was immediately concerned with the fact one must use the apple provided service browser to select devices. The product I am responsible for is an internet dialer, in which we allow connection to cell phones via serial, usb, infrared and bluetooth. Due to the nature of complexity that can actually be involved in getting particular models of cell phones to work ( we work with 50+ of them, all of which have their own little quirks ), we have an integrated device selection wizard that has a consistent look and feel across port types and platforms. No matter which connection method the user selects, the wizard maintains the look and feel, and even more important than that, our wizard behaves and looks the same on the windows counterpart of our product. The Service Browser is completely incompatible with this mentality. As usual, I understand and respect apples decisions to keep the functionality wrapped by the browser private. True, even if it messes up the consistency of our product, it will at least be consistent with other bluetooth enabled applications on OS X. However, where is the localization? We currently ship in five languages, english being the only one I seem to be able to get the browser to appear in! I notice there are localized strings in the UI framework for all the languages I require, but as far as I can tell the nib files are not localized. Rather, when I attempt to open them interface builder does nothing, and regardless of which languages I select in System Preferences the browser only appears in english. Anyone care to address this? Am I simply missing something? - Morgan ----------------------- Morgan Redman Xybec Solutions www.xybec.com ----------------------- _______________________________________________ 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

Nokia 6210 Bluetooth battery (LRW-1) not working
by Alexander Traud 21 May '03

21 May '03

Not sure if I am right here - but I think so as I am a "Bluetooth" developer in some way. All my Bluetooth devices work great - even an old Ericsson Bluetooth adapter (DBA-10). But the Nokia 6210 Bluetooth battery (Nokia LRW-1) does not. It does pair, it shows up its Dial-up networking profile but I cannot access it. How could I track Bluetooth communication to help Apple? By the way is it normal that I cannot issue a KILL PID within Terminal.app of the Bluetooth stack PID as normal "staff" user? Posted this to Apple Discussions some time ago - no answer: http://discussions.info.apple.com/WebX?.3bc09827 _______________________________________________ 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

Application Development Proposal/Question
by John Cleary Design 20 May '03

20 May '03

Hi there, My name is John Cleary. I work in Australia, and run a company called (predictably enough :) John Cleary Design. I am a Graphic Designer & Filemaker Pro database developer by trade, and am looking to get into programming Objective C on Mac OS X. I have an idea for a piece of software for Mac using bluetooth phones (ericsson), and am looking for a Mac developer I can co-develop with. I have a mockup that I have created in Filemaker Pro (as a stand alone app) that I can show interested parties to see whether they would be interested in possibly joint developing with me. As I mentioned, I am unable to help with the hard coding of the program, and do not know what is available to the programmer from the Sony Ericsson phones (I'm thinking T68i, the mac person's phone!). By this i mean what data can be transferred to the computer out of the phone's memory, however I assume, given the other applications available on the market that the phone must have some functionality for reading and writing data. I am happy to design the interface elements etc, and I already have many sketches and project builder interface files that I have completed. I have also developed extensive flowcharts in database-based logic as to the procedures for the program (data tables, etc.) and variables etc (I have a basic knowledge in plain vanilla C). I cannot imagine that there would be a large amount of programming for you to do, more implementation rather than design. (Of course if we do proceed I would greatly value any input you may have in application design, I am talking more in terms of bare minimums when I say that it would be more implementation etc.) If you are interested in potentially working on this project, I would love to hear from you. As I said, I am in Australia, but have no problem with developing long range - I have done it in the past with other people. iChat an Email have revolutionized sending files forward and back! Unfortunately there are no decent Mac OS X programmers in Australia - a scenario which I hope to remedy in the future!! :) Thanks for your time, I look forward to hearing from you all. :) Warmest Regards, John Cleary -- john cleary design melbourne, australia ph: available on request e: jcdesign(a)mac.com -- _______________________________________________ cocoa-dev mailing list | cocoa-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/cocoa-dev Do not post admin requests to the list. They will be ignored. _______________________________________________ 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: Dropped data packets with an RFCOMM connection
by Keith Phu 16 May '03

16 May '03

Marco, Thanks for the reply. With my test applications, the connection remains open after the data has been sent. So that wasn't the problem. But after reading your email, I updated OS X to the latest version, 10.2.6 and the update fixed the problem. I guess it was a known bug that has now been fixed. Keith From: Marco Pontil <mpontil(a)apple.com> To: Keith Phu <kphu(a)hotmail.com> Subject: Re: Dropped data packets with an RFCOMM connection Date: Thu, 15 May 2003 10:02:15 -0700 Hi Keith, RFCOMM is a protocol build over the L2CAP protocol, the L2CAP data consistency is ensured by the hardware where packets are sent with a crc based error detection, I recall the crc being 16 bits for 2712 bits of payload (2 bytes every 339 bytes), so it is kind of little and may not catch everything. So the answer to your last question is no, 100% reliability is not achieved. That said I think your problem is something different, you did not send enough data to make it likely to hit the crc weaknesses. Can you tell me more about your setup ? What kind of Bluetooth hardware are you using and which version of MacOS X are you running in and which side closes the connection. Do you know which packet are missed ? (You know what you sent so you should know what you did not receive). How do you close the connection ? Is it possible that you are shutting down the connection before all the data is sent ? If this is the case it should be easy to figure out, after one minute instead of closing everything wait and see if all the data arrived, or add a sleep(5) before the close. ... Marco On Wednesday, May 14, 2003, at 12:41 PM, Keith Phu wrote: Hi, I'm using an RFCOMM connection to transmit data from one powerbook to another. The application on the transmitting powerbook repeatedly uses the 'write:length:sleep' function to transmit a block of data (of about 10 bytes) to the other receiving powerbook every 10 ms. After running for about 1 minute (that's a total of 6000 blocks transmitted), a small number of blocks will not have arrived at the receiver. The transmitter will will have successfully (as returned by 'write:length:sleep') transmitted 6000 blocks, but the receiver will only have received say 5997 blocks. Some of the blocks have gone missing. Does anyone have an idea of where these missing blocks have gone? And a way to make the RFCOMM connection more reliable (without needing to add my own error correction algorithm to my application)? Can we not assume that an RFCOMM connection provides 100% reliability in a typical situation? Thanks Keith _________________________________________________________________ MSN 8 with e-mail virus protection service: 2 months FREE* http://join.msn.com/?page=features/virus _______________________________________________ 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. _________________________________________________________________ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail _______________________________________________ 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: Switching master/slave roles
by Crichlow, Eric 15 May '03

15 May '03

> There is no public API to do what you want currently. > However the host stack will automatically attempt to > switch roles (to become master) on any new incoming > connection. Will that solve your problem, or is there > another issue? Presumably that will be enough to accomplish what I'm looking for. I'll test it today. ...Thanx... ...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