Basic code formatting

cycle-colors.sh

@@ -1,12 +1,12 @@
 #!/bin/bash
 
 REFRESHRATE=1
-LEDCONTROLLER="/usr/bin/ledcontroller"
+LEDCONTROLLER="./ledcontroller"
 
 while (true); do
 
   for discoColor in blue red green aqua purple yellow white; do
-
+    echo Set color $discoColor
     $LEDCONTROLLER $discoColor
 
     sleep "$REFRESHRATE"

main.c

@@ -51,16 +51,19 @@
 
 static struct libusb_device_handle *devh = NULL;
 
-int main(int argc,char** argv)
+int
+main (int argc, char **argv)
 {
- int ret;
- unsigned char code = 0;
- if (argc != 2 ) 
- {
-    printf("syntax: %s blue | red | green | aqua | purple | yellow | white |  off\n",argv[0]);
-    return -1;
+  int ret;
+  unsigned char code = 0;
+  if (argc != 2)
+    {
+      printf
+	("Syntax: %s blue | red | green | aqua | purple | yellow | white |  off\n",
+	 argv[0]);
+      return -1;
 
- }
+    }
 
 /*
     The device has a RGB LED, which has two states for each "sub-LED",
@@ -81,72 +84,74 @@ int main(int argc,char** argv)
     1 1 0 yellow 0x6 (more of a mustard - green color)
     1 1 1 white  0x7 (a very blue-ish white)
 */
- if ( strcmp(argv[1],"blue") == 0 )
- {
-     code = 1;
- }
- else if ( strcmp(argv[1],"red") == 0 )
- {
-     code = 2;
- }
- else if ( strcmp(argv[1],"green") == 0 )
- {
-     code = 3;
- }
- else if ( strcmp(argv[1],"aqua") == 0 )
- {
-     code = 4;
- }
- else if ( strcmp(argv[1],"purple") == 0 )
- {
-     code = 5;
- }
- else if ( strcmp(argv[1],"yellow") == 0 )
- {
-     code = 6;
- }
- else if ( strcmp(argv[1],"white") == 0 )
- {
-     code = 7;
- } else {
-     printf("invalid color\n");
-     return -1;
- }
+  if (strcmp (argv[1], "blue") == 0)
+    {
+      code = 1;
+    }
+  else if (strcmp (argv[1], "red") == 0)
+    {
+      code = 2;
+    }
+  else if (strcmp (argv[1], "green") == 0)
+    {
+      code = 3;
+    }
+  else if (strcmp (argv[1], "aqua") == 0)
+    {
+      code = 4;
+    }
+  else if (strcmp (argv[1], "purple") == 0)
+    {
+      code = 5;
+    }
+  else if (strcmp (argv[1], "yellow") == 0)
+    {
+      code = 6;
+    }
+  else if (strcmp (argv[1], "white") == 0)
+    {
+      code = 7;
+    }
+  else
+    {
+      printf ("invalid color\n");
+      return -1;
+    }
 
- libusb_init(NULL);
- devh = libusb_open_device_with_vid_pid(NULL, VID, PID);
- if (devh == NULL )
- {
-	printf("not found\n");
-        return -1;
- }
+  libusb_init (NULL);
+  devh = libusb_open_device_with_vid_pid (NULL, VID, PID);
+  if (devh == NULL)
+    {
+      printf ("not found\n");
+      return -1;
+    }
 
- if ( libusb_kernel_driver_active(devh,0) )
- {
-	printf("detach from kernel\n");
-        ret = libusb_detach_kernel_driver(devh,0);
-        if (ret < 0 )
-        {
-		printf("can't detach\n");
-                return -1;
-        }
- }
+  if (libusb_kernel_driver_active (devh, 0))
+    {
+      printf ("detach from kernel\n");
+      ret = libusb_detach_kernel_driver (devh, 0);
+      if (ret < 0)
+	{
+	  printf ("can't detach\n");
+	  return -1;
+	}
+    }
 
- char data[5];
- data[0] = code;
- data[1] = 0x4;
- data[2] = 0x4;
- data[3] = 0x4;
- data[4] = 0x4;
+  char data[5];
+  data[0] = code;
+  data[1] = 0x4;
+  data[2] = 0x4;
+  data[3] = 0x4;
+  data[4] = 0x4;
 
- int dummy;
- libusb_claim_interface(devh,0);
- ret =  libusb_interrupt_transfer(devh,0x2,data,5,&dummy,0);
- if ( ret < 0 ) 
- {
-  perror("error");
- }
+  int dummy;
+  libusb_claim_interface (devh, 0);
+  ret = libusb_interrupt_transfer (devh, 0x2, data, 5, &dummy, 0);
+  if (ret < 0)
+    {
+      perror ("error");
+    }
 
 
-return 0;
+  return 0;
 }

scripts/README.md

@@ -1,40 +0,0 @@
-# Bash Scripts #
-
-I teared the notifier apart and placed the notifier's board inside my home server.
-Due to its size, the RGB LED creates some interesting optical effects if you place it 2-4cm
-behind the venting holes.
-
-Here are some simple scripts that use various data to set the LED's color.
-
-
-
-## mled-discomode ##
-
-This script simply cycles through all available colors. I called it disco mode due to the optical
-phenomena that take place as the light crosses the air vents.
-
-
-
-## mled-cputemp ##
-
-This script works really well for my machine. It uses the `sensors` program to get the CPU
-temperature.
-
-If the CPU is at or under the low threshold, the LED turns blue. If it is at or above the
-high threshold, the LED turns red. If it is in the middle, it gets green.
-
-It is actually very informative for the machine's state. You can easily detect CPU load.
-
-
-
-## mled-iowait, mled-iowaitdetailed ##
-
-My home server doesn't have any LEDs for HDD activity, though it has plenty of HDDs.
-These two scripts attempt to make up for this shortcoming when I need some quick profiling of the machine.
-They actually work better than common HDD activity LEDs because they are based on iowait percentage in one
-second periods (adjustable).
-
-`mled-iowait` has 3 levels, so you get only to set a low and a high threshold.
-
-`mled-iowaitdetailed` has 6 levels of activity, so you can set 5 thresholds. Also below the lowest threshold,
-it sets the notifier to off, which turns to be a good approach.

scripts/mled-cputemp

@@ -1,28 +0,0 @@
-#!/bin/bash
-
-LOWTEMP=46
-HIGHTEMP=53
-REFRESHRATE=1
-LEDCONTROLLER="/usr/bin/ledcontroller"
-
-
-while (true); do
-
-  temperature="$(sensors|grep 'id 0'|sed -e 's/\.0.*//' -e 's/.*+//')"
-
-  if (( "$temperature" <= "$LOWTEMP" )); then
-
-    $LEDCONTROLLER blue;
-
-  elif (( "$temperature" < "$HIGHTEMP" )); then
-
-    $LEDCONTROLLER green;
-
-  else $LEDCONTROLLER red;
-
-  fi;
-
-  sleep "$REFRESHRATE";
-
-done
-

scripts/mled-iowait

@@ -1,70 +0,0 @@
-#!/bin/bash
-
-LOWTHRESHOLD="1.01"
-HIGHTHRESHOLD="30.2"
-REFRESHRATE=1
-
-LEDCONTROLLER="/usr/bin/ledcontroller"
-
-
-iostat -c "$REFRESHRATE" | while read iostatOutput; do
-
-  iowaitPercent="$(echo "$iostatOutput" | grep -vE "Linux|avg|^$" | awk '{print $4}')"
-
-  [ -z "$iowaitPercent" ] || \
-  if (( $(bc <<< "$iowaitPercent > $LOWTHRESHOLD") == 0  )); then 
-
-    $LEDCONTROLLER blue
-
-  elif (( $(bc <<< "$iowaitPercent > $HIGHTHRESHOLD") == 0 )); then
-
-    $LEDCONTROLLER green
-
-  else
-
-    $LEDCONTROLLER red
-
-  fi
-
-done
-
-
-# This is an older version of the code, which used /proc/stats to do a similar job.
-
-#iowaitCounter="$(grep 'cpu ' /proc/stat | cut -f 9 -d ' ')"
-#$LEDCONTROLLER blue
-#ledcolor="blue"
-#
-#while (true); do
-#
-#  iowaitTemp="$(grep 'cpu ' /proc/stat | cut -f 9 -d ' ')"
-#
-##  echo "iowaitCounter=$iowaitCounter, iowaitTemp=$iowaitTemp"
-#
-#  if (( "$iowaitCounter" == "$iowaitTemp" )); then
-#
-#    if [ "$ledcolor" != "blue" ]; then
-#
-#      $LEDCONTROLLER blue
-#      ledcolor="blue"
-#
-#    fi
-#
-#  else
-#
-#     iowaitCounter="$iowaitTemp"
-#
-#     if [ "$ledcolor" != "red" ]; then
-#
-#       $LEDCONTROLLER red;
-#       ledcolor="red"
-#
-#     fi
-#
-#  fi
-#
-#  sleep "$REFRESHRATE";
-#
-#done
-
-

scripts/mled-iowaitdetailed

@@ -1,44 +0,0 @@
-#!/bin/bash
-
-THRESH1="1.00"
-THRESH2="5.00"
-THRESH3="20.00"
-THRESH4="40.00"
-THRESH5="80.00"
-REFRESHRATE=1
-
-LEDCONTROLLER="/usr/bin/ledcontroller"
-
-
-iostat -c "$REFRESHRATE" | while read iostatOutput; do
-
-  iowaitPercent="$(echo "$iostatOutput" | grep -vE "Linux|avg|^$" | awk '{print $4}')"
-
-  [ -z "$iowaitPercent" ] || \
-  if (( $(bc <<< "$iowaitPercent > $THRESH1") == 0  )); then 
-
-    $LEDCONTROLLER off
-
-  elif (( $(bc <<< "$iowaitPercent > $THRESH2") == 0 )); then
-
-    $LEDCONTROLLER green
-
-  elif (( $(bc <<< "$iowaitPercent > $THRESH3") == 0 )); then
-
-    $LEDCONTROLLER aqua # blue and green
-
-  elif (( $(bc <<< "$iowaitPercent > $THRESH4") == 0 )); then
-
-    $LEDCONTROLLER blue
-
-  elif (( $(bc <<< "$iowaitPercent > $THRESH5") == 0 )); then
-
-    $LEDCONTROLLER purple # red and blue
-
-  else
-
-    $LEDCONTROLLER red
-
-  fi
-
-done