Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a USB bluetooth dongle on a Linux 3.12.5 ARM system. I have been able to make it pairable via:

bluetooth-agent 0000 &

And then pairing via from my phone. Then, I create a serial port on the device via:

sudo mknod -m 666 /dev/rfcomm0 c 216 0
sudo sdptool add --channel=22 SP
sudo rfcomm listen /dev/rfcomm 22

Then, from my phone, I use BlueTerm to attempt to connect to the serial port. However, it loses connection immediately. On the Linux side, the following appears in the terminal:

Waiting for connection on channel 22
Authorizing request for /org/bluez/317/hci0/dev_xx_xx_xx_xx_00_46

It doesn't seem to be kicking the phone off the connection, so what's happening?

share|improve this question

migrated from Mar 27 '14 at 22:30

This question came from our site for system and network administrators.

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.