UPBOARD_REGISTER_SIZE
.val_bits = UPBOARD_REGISTER_SIZE,
.val_bits = UPBOARD_REGISTER_SIZE,
for (i = UPBOARD_REGISTER_SIZE - 1; i >= 0; i--) {
for (i = UPBOARD_REGISTER_SIZE - 1; i >= 0; i--) {
unsigned int regoff = pin_desc->number / UPBOARD_REGISTER_SIZE;
unsigned int lsb = pin_desc->number % UPBOARD_REGISTER_SIZE;