site_archiver@lists.apple.com Delivered-To: bluetooth-dev@lists.apple.com Hi, Regards Moritz _______________________________________________ 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... So far, I was using the WriteSync method in my application to send data over an RFComm channel. I just wanted to make sure the stuff was really sent before I moved on. Now I just discovered, that when sending data through an external BT-Dongle (instead of the integrated BT-Dongle). The WriteSync Method was blocking for quite some time. Where the WriteAsync method was not. Using a Blocksize of 400 Bytes I could transfer 16kb/sec (using obex) with writeSync through the internal BT hardware and about 1.6kb/sec wih an external (class 1 BT2.0+EDR) dongle. Using WriteAsync, internal and external both went at 16-20kb/sec. The remote and was always a Nokia e61 phone. 1. Why Is WriteSync so much slower on an external dongle ? 2. Is Write Async as safe as write sync ? Event when not implementing the callback methods ? This email sent to site_archiver@lists.apple.com