driver lakeshore_218 = {
  vendor = lakeshore; device = ls218; protocol = std;
  class = NXdetector; simulation_group = detector_simulation;

  group = {
    data = false;
    nxsave = false;
    control = false;
    readable = 1;

    var krdg = {
      type = text;
      read_command = "KRDG? 0";
      value = "0,0,0,0,0,0,0,0";
    }
  }

  group sensor = {
    priv = user; mutable = true;
    type = float;
    readable = 1;
    fetch_function = getTemp;
    var ch1 = { read_command = '0'; }
    var ch2 = { read_command = '1'; }
    var ch3 = { read_command = '2'; }
    var ch4 = { read_command = '3'; }
    var ch5 = { read_command = '4'; }
    var ch6 = { read_command = '5'; }
    var ch7 = { read_command = '6'; }
    var ch8 = { read_command = '7'; }
  }

  code fetch_function getTemp = {%%
    set temps [split "[hval ${tc_root}/krdg]" ","]
    sct result [lindex ${temps} ${cmd_str}]
    set cmd "@@NOSEND@@"
  %%}
}