/*
FIXME this should work, but does not...

channel     get10bitHighShift       get10bitLowShift
0           2                       6
1           4                       4
2           6                       2
3           8                       0

if (i < 4) {
    uint8_t bitIndex = i + (i / 4);
    qspPayload[bitIndex] |= (channelValue10 >> get10bitHighShift(i)) & (0xff >> get10bitHighShift(i));
    qspPayload[bitIndex + 1] |= (channelValue10 << get10bitLowShift(i)) & (0xff << (8 - get10bitHighShift(i)));
}

if (i == 0) {
    qspPayload[0] |= (channelValue10 >> 2) & B11111111; //255
    qspPayload[1] |= (channelValue10 << 6) & B11000000; //192
} else if (i == 1) {
    qspPayload[1] |= (channelValue10 >> 4) & B00111111; //63
    qspPayload[2] |= (channelValue10 << 4) & B11110000; //240
} else if (i == 2) {
    qspPayload[2] |= (channelValue10 >> 6) & B00001111; //15
    qspPayload[3] |= (channelValue10 << 2) & B11111100; //252
} else if (i == 3) {
    qspPayload[3] |= (channelValue10 >> 8) & B00000011; //3
    qspPayload[4] |= channelValue10        & B11111111; //255            
} 

*/