July 26, 2006 BTHSET 1

### NAME

bthset - Bluetooth Headset utility

### SYNOPSIS

bthset [-v] [-c command] [-m mixer] [-p file] [-s channel] bthset [-h]

### DESCRIPTION

The bthset utility is used to access a Bluetooth Headset with the btsco(4) audio device. It opens the mixer(4) device and creates the control connection to the headset, then conducts volume settings each way. When bthset receives a ```SIGUSR1` signal, it will start sending RING codes to the headset until the headset button is pressed or a ```SIGUSR2` signal is received. If the headset is ringing and bthset receives a button press notification, the specified command (if any) is executed.

When the server channel is specified with the -s option, instead of opening the control connection, bthset will listen on the channel for incoming connections from the Headset and register as Headset Audio Gateway with the local SDP server.

The options are as follows:

-c command
  Specify an optional command to be executed when the headset responds to ringing with a button press event. This defaults to the contents of the ```BTHSET_COMMAND` environment variable, if set.

-h
  Print usage message.

-m mixer
  Specify the path to the mixer device. This defaults to the contents of the ```BTHSET_MIXER` environment variable, or ```/dev/mixer` if not set.

-p file
  Write the PID to file so that other programs can find us later. This defaults to the contents of the ```BTHSET_PIDFILE` environment variable, if set.

-s channel
  Register with the local SDP server as a Headset Audio Gateway and listen for connections on the given RFCOMM server channel.

-v
  Be verbose.

### EXIT STATUS

### FILES

```/dev/mixer`

### SEE ALSO

btsco(4), mixer(4)

### AUTHORS

Iain Hibbert
for Itronix, Inc