[Bill Meier <wmeier@xxxxxxxxxxx>]

> It then fails on:
>
> proto_register_field_array (proto_abc, hf, array_length (hf));
>
> Here is the hf array construction, can anyone see what the error is?
>
>     static hf_register_info hf[] = {
>

>         { &hf_abc_txPower,
>             { "txPower", "abc.txPower",
>             FT_UINT8, BASE_DEC,
>             "Transmit power for message in dBm",
>             0x0, NULL, HFILL }
>         },

should be

         { &hf_abc_txPower,
             { "txPower", "abc.txPower",
             FT_UINT8, BASE_DEC, NULL, 0x0,
             "Transmit power for message in dBm", HFILL }
         },

Stepping through the code (eg: proto_register-field_array) is the way to 
find bugs like this.