On 05/21/2014 07:19 PM, Flavio Leitner wrote:
From: Flavio Leitner <[email protected]>It is possible to increase left fan speed on a DELL Precision 490n system up to 3. value fan rpm 1 35460 2 64740 3 78510
Guess the speed factor 30 doesn't apply here.
Signed-off-by: Flavio Leitner <[email protected]> --- drivers/char/i8k.c | 4 ++-- include/uapi/linux/i8k.h | 3 ++- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c index d915707..99180f0 100644 --- a/drivers/char/i8k.c +++ b/drivers/char/i8k.c @@ -519,7 +519,7 @@ static ssize_t i8k_hwmon_show_pwm(struct device *dev, status = i8k_get_fan_status(index); if (status < 0) return -EIO; - return sprintf(buf, "%d\n", clamp_val(status * 128, 0, 255)); + return sprintf(buf, "%d\n", clamp_val(status * 128, 0, 384)); } static ssize_t i8k_hwmon_set_pwm(struct device *dev, @@ -533,7 +533,7 @@ static ssize_t i8k_hwmon_set_pwm(struct device *dev, err = kstrtoul(buf, 10, &val); if (err) return err; - val = clamp_val(DIV_ROUND_CLOSEST(val, 128), 0, 2); + val = clamp_val(DIV_ROUND_CLOSEST(val, 128), 0, 3); mutex_lock(&i8k_mutex); err = i8k_set_fan(index, val); diff --git a/include/uapi/linux/i8k.h b/include/uapi/linux/i8k.h index 1c45ba5..133d02f 100644 --- a/include/uapi/linux/i8k.h +++ b/include/uapi/linux/i8k.h @@ -34,7 +34,8 @@ #define I8K_FAN_OFF 0 #define I8K_FAN_LOW 1 #define I8K_FAN_HIGH 2 -#define I8K_FAN_MAX I8K_FAN_HIGH +#define I8K_FAN_TURBO 3 +#define I8K_FAN_MAX I8K_FAN_TURBO #define I8K_VOL_UP 1 #define I8K_VOL_DOWN 2
I'll have to test this on older systems to make sure it doesn't cause problems there. Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
