Set push to talk (Tx on/off)

Parameters:

rig	must != NULL
vfo
ptt	RIG_PTT_ON or RIG_PTT_OFF

Returns:

RIG_OK or < 0

Definition at line 805 of file orion.c.

References EOM, RIG_PTT_ON, rig_state::rigport, rig::state, and write_block().

{
      struct rig_state *rs = &rig->state;

      return write_block(&rs->rigport, 
                  ptt==RIG_PTT_ON ? "*TK" EOM:"*TU" EOM, 4);
}