ARCTIC_NUM_FANS
for (i = 0; i < ARCTIC_NUM_FANS; i++) {
u32 fan_rpm[ARCTIC_NUM_FANS];
u8 pwm_duty[ARCTIC_NUM_FANS]; /* 0-255 matching sysfs range; converted to 0-100 on send */
for (i = 0; i < ARCTIC_NUM_FANS; i++)