bthidd.conf man page

First scan for available bt devices. This will report the BD_ADDR of each advertised interface on the network.

# hccontrol -n ubt0hci inquiry

Inquiry result, num_responses=1
Inquiry result #0
        BD_ADDR: 00:1b:dc:06:94:d3
        Page Scan Rep. Mode: 0x1
        Page Scan Period Mode: 0x2
        Page Scan Mode: 00
        Class: ff:01:0c
        Clock offset: 0x241a
Inquiry complete. Status: No error [00]



Next use sdpcontrol to scan each BD_ADDR for the availability of "Human Interface Device (0x1124)" in it's "Service Class ID List".

# sdpcontrol -a 00:1b:dc:06:94:d3 browse

Record Handle: 00000000
Service Class ID List:
        Service Discovery Server (0x1000)
Protocol Descriptor List:
        L2CAP (0x0100)
        SDP (0x0001)
Bluetooth Profile Descriptor List:
        Service Discovery Server (0x1000) ver. 1.0

Record Handle: 0x00000001
Service Class ID List:
        Browse Group Descriptor (0x1001)

Record Handle: 0x00000002
Service Class ID List:
        Human Interface Device (0x1124)
Protocol Descriptor List:
        L2CAP (0x0100)
                Protocol specific parameter #1: u/int/uuid16 17
        HIDP (0x0011)
Bluetooth Profile Descriptor List:
        Human Interface Device (0x1124) ver. 1.0



When you find the BD_ADDR with an HID device you wish to connect to your client, test with bthidcontrol.

# bthidcontrol -a 00:1b:dc:06:94:d3 query 

device {
        bdaddr                  00:1b:dc:06:94:d3;
        control_psm             0x11;
        interrupt_psm           0x13;
        reconnect_initiate      false;
        battery_power           false;
        normally_connectable    false;
        hid_descriptor          {
                0x05 0x01 0x09 0x06 0xa1 0x01 0x85 0x01 
                0x05 0x07 0x19 0xe0 0x29 0xe7 0x15 0x00 
                0x25 0x01 0x75 0x01 0x95 0x08 0x81 0x02 
                0x75 0x08 0x95 0x01 0x81 0x01 0x75 0x01 
                0x95 0x05 0x05 0x08 0x19 0x01 0x29 0x05 
                0x91 0x02 0x75 0x03 0x95 0x01 0x91 0x01 
                0x75 0x08 0x95 0x06 0x15 0x00 0x26 0xff 
                0x00 0x05 0x07 0x19 0x00 0x2a 0xff 0x00 
                0x81 0x00 0x75 0x01 0x95 0x01 0x15 0x00 
                0x25 0x01 0x05 0x0c 0x09 0xb8 0x81 0x06 
                0x09 0xe2 0x81 0x06 0x09 0xe9 0x81 0x02 
                0x09 0xea 0x81 0x02 0x75 0x01 0x95 0x04 
                0x81 0x01 0xc0 
        };
}



Finally add the HID device to /etc/bluetooth/bthidd.conf

# bthidcontrol -a 00:1b:dc:06:94:d3 query >> /etc/bluetooth/bthidd.conf