Changeset 4381

Timestamp:

04/27/07 15:41:32 (6 years ago)

Author:

khali

Message:

pwmconfig: Use smaller steps for low PWM values. Inspired from a patch
from the openSuse sensors package. This is a good idea because the
PWM/speed relation isn't linear, and it is frequent that the speed
changes are concentrated in the low PWM range.

Location:

lm-sensors/branches/lm-sensors-3.0.0

Files:

• CHANGES (modified) (1 diff)
• prog/pwm/pwmconfig (modified) (2 diffs)

lm-sensors/branches/lm-sensors-3.0.0/CHANGES

@@ -9 +9 @@
   Man page sensors.conf.5: Update the chip statement section
   Program isadump: Detect when address bit 7 is a busy flag
+  Program pwmconfig: Use smaller steps for low PWM values
   Program rrd: Support only hwmon class devices
                Look for rrd in /usr/bin by default

lm-sensors/branches/lm-sensors-3.0.0/prog/pwm/pwmconfig

@@ -249 +249 @@
 STEP=15
 PDELAY=2
+# Use a smaller step for low PWM values as this is typically where the
+# more important fan speed changes are happening.
+STEP2=2
+STEP2_BELOW=31
 
 function pwmdetail()
@@ -316 +320 @@
                         break
                 fi
-                let pwm=$pwm-$STEP
+                if [ $pwm -lt $STEP2_BELOW ]
+                then
+                        let pwm=$pwm-$STEP2
+                else
+                        let pwm=$pwm-$STEP
+                fi
         done
         pwmdisable $P