setPWM() tests channel number incorrectly

[twrackers]

In method setPWM(...), the channel number is tested incorrectly.

The method currently reads

void Adafruit_TLC59711::setPWM(uint16_t chan, uint16_t pwm) {
if (chan > 12 * numdrivers)
return;
pwmbuffer[chan] = pwm;
}

Assuming the channel numbers count up from zero, the inequality should read

if (chan >= 12 * numdrivers)

so that for, say, numdrivers=1, chan should be accepted for the range 0 to 11, not 0 to 12.

[twrackers]

I've created a patch fork and made the change to the .cpp file, and have created a pull request. I assume that's the correct procedure.

[twrackers]

For comparison, see method setPWM() in the Adafruit_TLC5947 library. That one is correct.