On Wednesday, October 9, 2002, at 10:25 AM, Eric Welch wrote: Alberto, Exclusive use of a Bluetooth serial port is more a POSIX issue than a Bluetooth issue. Consider #include <ttycom.h> ioctl(fd, TIOCEXCL, 0); after you open the port. That should prevent anyone else from being able to get it. Hope this helps... eric And the problem is that even if you use the Bluetooth APIs to access the RFCOMM channel directly, there is still likely only one Serial Port Profile RFCOMM channel on the device. A single RFCOMM channel only allows for a single client to use it at one time, so while you were using the Bluetooth API to access it, it would be unavailable through the tty. - Eric From: Alberto Ricci <alberto@riccisoft.com> Date: Wed, 9 Oct 2002 14:54:28 +0200 To: bluetooth-dev@lists.apple.com Subject: Serial connection with a T68i Hello, I am writing an application and I would like to make it communicate with a T68i cellphone via a bluetooth connection. Yeah, I'm new to bluetooth development and protocols. The device is already paired with the Mac, so there is a serial port available for communicating and I could use the usual posix routines to open the port and do serial i/o. However, I would like to be able to communicate with it without preventing other applications from being able to use that serial port. As far as I know, the Address Book application does that. How is this achieved? Or does the Address Book application only open the serial port in a read-only mode with allows other processes to access it? But Address Book does send AT commands to the phone, so it can't be read-only... Any hints? Thank you very much! Alberto. _______________________________________________ bluetooth-dev mailing list | bluetooth-dev@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@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@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.