site_archiver@lists.apple.com Delivered-To: bluetooth-dev@lists.apple.com .... Marco On Sep 13, 2005, at 1:17 PM, Jesus De Meyer wrote: Hi, _______________________________________________ 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... There are issues on doing constant discovery as well as continuos attempts to connect. The biggest issue is with discovery (and connect), the action of discovery of (or connecting to ) a device requires the host to sweep all the 2.4 GHz band and that causes a great deal of interference on Airport traffic and on the existing Bluetooth connections. I would strongly discourage this. Doing attempts to connect at intervals is somehow more tolerated as far as the interval is big enough I would suggest a minimum value of 20 seconds (more is better). Keep in mind that putting 20 seconds between attempts to connect means that if you have 5 paired device and the connection interval is a reasonable 5 seconds it will take more than 125 seconds ( (20 + connection timeout interval) * 5) to scan them all. Really not the best user experience since it means that it may take up to 2 minutes to realize that a device is in range, and this with the minimum value. Given the way BT works, in my opinion it is really much better to have an action of the user to be the trigger of an attempt to connect, it is better from an RF band usage point of view, and it is a better from an user experience point of view. I was experimenting with the IOBluetooth framework and I wanted to know if the framework has some sort of autodiscovery built in. I know there is the IOBluetoothDeviceInquiry class, but when I start the inquiry, only the start delegate method is called, and no device is found. Even though my USB Bluetooth adaptor is connected. So, I would think that I may need an NSTimer that constatly checks all the paired devices and checks if one of them or all are online. This doesn't sound like it's the way to do it, so I'm wondering if there's a better way? What I want to do is check which bluetooth devices are online and if they are not, automatically get some sort of notification that they are connected. Thanks in advance _______________________________________________ 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/mpontil% 40apple.com This email sent to mpontil@apple.com This email sent to site_archiver@lists.apple.com