In all of the datasheets for ATmega44/88/168/328 devices that I've
seen, there are 8 channels of ADC selected with MUX modes 0000-0111,
and the temperature sensor is selected with MUX mode 1000.
[0] = AVR_ADC_SINGLE(0), [1] = AVR_ADC_SINGLE(1),
[2] = AVR_ADC_SINGLE(2), [3] = AVR_ADC_SINGLE(3),
[4] = AVR_ADC_SINGLE(4), [5] = AVR_ADC_SINGLE(5),
- [6] = AVR_ADC_SINGLE(6), [7] = AVR_ADC_TEMP(),
+ [6] = AVR_ADC_SINGLE(6), [7] = AVR_ADC_SINGLE(7),
+ [8] = AVR_ADC_TEMP(),
[14] = AVR_ADC_REF(1100), // 1.1V
[15] = AVR_ADC_REF(0), // GND
},