<br />
<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_mvsgke3ifn44uvuoh1b2hrjnmd, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
!7

sclass NumberOfMics > DynBigNumber {
  void start {
    doEvery(5.0, r actualUpdate);
  }
  
  void actualUpdate {
    temp enter();
    S text = apacheCommonsExec_backtick("arecord -l");
    printIndent(text);
    setValue(or(regexpFirstGroup_lastMatch("\\bcard (\\d+):", text), "?"));
  }
}