site_archiver@lists.apple.com Delivered-To: bluetooth-dev@lists.apple.com On Sep 29, 2005, at 8:34 AM, Joseph Kelly wrote: Greetings, I'm using the serial device protocol on an RFCOMM channel. My questions: - Eric _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.a... I am building a bluetooth device that basically records some kind of simple periodic data in the field, and once it's within proximity, uploads this data to a host computer. I have developed a prototype application using the objective-C apis which I've gotten up and running in a matter of days -- thanks Apple! (The Windows Bluetooth implementation is something gawd awful by comparison!) (1) I am identifying my devices by their name. Basically, they are called "CompanyPrefix:DeviceName", so I get back a list of devices from IOBluetoothDeviceInquiry, I match the name against CompanyPrefix; I display DeviceName to the user. Is this a decent strategy, or is there a better approach to identifying my device? As you've discovered, there isn't really a good way to identify a specific device (or specific vendor's device). Your strategy seems about as good as any. Another option is to look into using the Bluetooth device class information to identify the device, but that isn't really unique any may not apply very well in your situation. That assumes you have control over the device and how it identifies itself. (2) Is there a way to get to a lower level public Bluetooth api? I've looked through some of the top level IOKit headers w/ no luck. I think if I could get an answer to this question, my following question might be moot. All of the public Bluetooth APIs are in Bluetooth.framework and BluetoothUI.framework. (3) How do I enumerate devices without the UI in absence of IOBluetoothDeviceInquiry? IOBlueotothDeviceInquiry is the only mechanism for performing inquiries. Is there something specific you're trying to do? (4) How do I specify the passcode for a device programatically? (If you haven't figured out, I'm trying to prevent user intervention as much as possible because I'd like the discover-connect-upload process to be automatic) There's a chance I might downgrade the security model to eliminate passcodes. There isn't a way to do this currently. We are considering adding it in the future as there have been several requests for it. (5) Say I have 20 devices, and 5 host computers. I would like the devices to be bound to only one host, such that when the device disconnects (i.e. travels out to the field) and re-connects, only that host is able to connect to it. I know that I can cache the device address on the host, but can anyone suggest a strategy whereby I can guarantee that only that one host can connect to a particular device, w/o necessarily connecting to the device and opening a channel? Once again, I'm thinking of resorting to placing the Mac's bt address in the name field (i.e. CompanyPrefix:Address:DeviceName). The best solution to this would require changes to the device. The device would remember the host that it is tied to (possibly paired to). Then it would refuse connections from any other devices. You would likely need to provide a means to reset the device so you could set it up with another host. This email sent to site_archiver@lists.apple.com