Light Sensor and LED Problem - LilyPad

Other Hardware LEDs and Multiplexing
10

What does this do:

const int light=A6;
const int ledlight=9;

void setup() 
{
}

void loop() 
{
  int lightval = analogRead(light) / 4;
  int brightness = lightval;
  analogWrite(ledlight, brightness);
}

?

Note that you don't set the pinMode of analogue input pins, and PWM output pins don't need them either, the analogWrite sets the mode.

Note: Please don't edit earlier posts to reflect the new state of code, it makes the thread hard to follow - just put the amended code in a new post.