Bluetooth profile info in linux

Question

As bluetooth device has a number of bluetooth profiles . when want to do communication is bluetooth device, first pair bluetooth device and then starts sending data using bluetooth.

In linux, hcitool is used to scan nearby bluetooth devices.

Questions:
1) How can i know which bluetooth profile is supported by selected nearby bluetooth device? Is there any particular command to know bluetooth profile supported by selected nearby bluetooth device in linux?

2) suppose, i come to know selected nearby bluetooth device support abcd and xyz bluetooth profiles. How can i select particular bluetooth profile in linux? , example abcd out of supported profiles.

2) How can i connect to that selected bluetooth device as SPP profile for transferring data as serial port in linux?

Regards,
Sukhdeep Singh

Answer 1

1. In linux, sdptool utility is provided with which you can search your own device supported profiles and other devices supported profiles(sdptool browse local/).

2. Since you know the peer device support abcd/xyz profile, you dont have to select any profile, you have to intiate a profile level connection request(pairing/authentication also needs to be taken care)

3. For SPP connection, rfcomm tool is provided by bluez