4 # https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface
6 # if this chart is called X.chart.sh, then all functions and global variables
9 # the directory the kernel keeps sensor data
10 sensors_sys_dir="${NETDATA_HOST_PREFIX}/sys/devices"
12 # how deep in the tree to check for sensor data
15 # if set to 1, the script will overwrite internal
16 # script functions with code generated ones
17 # leave to 1, is faster
18 sensors_source_update=1
20 # how frequently to collect sensor data
21 # the default is to collect it at every iteration of charts.d
24 sensors_priority=90000
26 sensors_find_all_files() {
27 find $1 -maxdepth $sensors_sys_depth -name \*_input -o -name temp 2>/dev/null
30 sensors_find_all_dirs() {
31 sensors_find_all_files $1 | while read
37 # _check is called once, to find out if this chart should be enabled or not
41 # - 0 to enable the chart
42 # - 1 to disable the chart
44 [ -z "$( sensors_find_all_files $sensors_sys_dir )" ] && echo >&2 "$PROGRAM_NAME: sensors: no sensors found in '$sensors_sys_dir'." && return 1
48 sensors_check_files() {
49 # we only need sensors that report a non-zero value
54 [ ! -f "$f" ] && continue
58 [ $v -ne 0 ] && echo "$f" && continue
60 echo >&2 "$PROGRAM_NAME: sensors: $f gives zero values"
64 sensors_check_temp_type() {
65 # valid temp types are 1 to 6
66 # disabled sensors have the value 0
71 t=$( echo $f | sed "s|_input$|_type|g" )
72 [ "$f" = "$t" ] && echo "$f" && continue
73 [ ! -f "$t" ] && echo "$f" && continue
77 [ $v -ne 0 ] && echo "$f" && continue
79 echo >&2 "$PROGRAM_NAME: sensors: $f is disabled"
83 # _create is called once, to create the charts
85 local path= dir= name= x= file= lfile= labelname= labelid= device= subsystem= id= type= mode= files= multiplier= divisor=
87 # we create a script with the source of the
88 # sensors_update() function
89 # - the highest speed we can achieve -
90 [ $sensors_source_update -eq 1 ] && echo >$TMP_DIR/sensors.sh "sensors_update() {"
92 for path in $( sensors_find_all_dirs $sensors_sys_dir | sort -u )
94 dir=$( basename $path )
101 [ -h $path/device ] && device=$( readlink -f $path/device )
102 [ ! -z "$device" ] && device=$( basename $device )
103 [ -z "$device" ] && device="$dir"
105 [ -h $path/subsystem ] && subsystem=$( readlink -f $path/subsystem )
106 [ ! -z "$subsystem" ] && subsystem=$( basename $subsystem )
107 [ -z "$subsystem" ] && subsystem="$dir"
109 [ -f $path/name ] && name=$( cat $path/name )
110 [ -z "$name" ] && name="$dir"
112 [ -f $path/type ] && type=$( cat $path/type )
113 [ -z "$type" ] && type="$dir"
115 id="$( fixid "$device.$subsystem.$dir" )"
117 echo >&2 "charts.d: sensors: on path='$path', dir='$dir', device='$device', subsystem='$subsystem', id='$id', name='$name'"
119 for mode in temperature voltage fans power current energy humidity
128 files="$( ls $path/temp*_input 2>/dev/null; ls $path/temp 2>/dev/null )"
129 files="$( sensors_check_files $files )"
130 files="$( sensors_check_temp_type $files )"
131 [ -z "$files" ] && continue
132 echo "CHART sensors.temp_$id '' '$name Temperature' 'Celsius' 'temperature' 'sensors.temp' line $((sensors_priority + 1)) $sensors_update_every"
133 echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.temp_$id \$1\""
138 files="$( ls $path/in*_input 2>/dev/null )"
139 files="$( sensors_check_files $files )"
140 [ -z "$files" ] && continue
141 echo "CHART sensors.volt_$id '' '$name Voltage' 'Volts' 'voltage' 'sensors.volt' line $((sensors_priority + 2)) $sensors_update_every"
142 echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.volt_$id \$1\""
147 files="$( ls $path/curr*_input 2>/dev/null )"
148 files="$( sensors_check_files $files )"
149 [ -z "$files" ] && continue
150 echo "CHART sensors.curr_$id '' '$name Current' 'Ampere' 'current' 'sensors.curr' line $((sensors_priority + 3)) $sensors_update_every"
151 echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.curr_$id \$1\""
156 files="$( ls $path/power*_input 2>/dev/null )"
157 files="$( sensors_check_files $files )"
158 [ -z "$files" ] && continue
159 echo "CHART sensors.power_$id '' '$name Power' 'Watt' 'power' 'sensors.power' line $((sensors_priority + 4)) $sensors_update_every"
160 echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.power_$id \$1\""
165 files="$( ls $path/fan*_input 2>/dev/null )"
166 files="$( sensors_check_files $files )"
167 [ -z "$files" ] && continue
168 echo "CHART sensors.fan_$id '' '$name Fans Speed' 'Rotations / Minute' 'fans' 'sensors.fans' line $((sensors_priority + 5)) $sensors_update_every"
169 echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.fan_$id \$1\""
173 files="$( ls $path/energy*_input 2>/dev/null )"
174 files="$( sensors_check_files $files )"
175 [ -z "$files" ] && continue
176 echo "CHART sensors.energy_$id '' '$name Energy' 'Joule' 'energy' 'sensors.energy' areastack $((sensors_priority + 6)) $sensors_update_every"
177 echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.energy_$id \$1\""
178 algorithm="incremental"
183 files="$( ls $path/humidity*_input 2>/dev/null )"
184 files="$( sensors_check_files $files )"
185 [ -z "$files" ] && continue
186 echo "CHART sensors.humidity_$id '' '$name Humidity' 'Percent' 'humidity' 'sensors.humidity' line $((sensors_priority + 7)) $sensors_update_every"
187 echo >>$TMP_DIR/sensors.sh "echo \"BEGIN sensors.humidity_$id \$1\""
199 fid="$( fixid "$file" )"
200 lfile="$( basename $file | sed "s|_input$|_label|g" )"
201 labelname="$( basename $file | sed "s|_input$||g" )"
203 if [ ! "$path/$lfile" = "$file" -a -f "$path/$lfile" ]
205 labelname="$( cat "$path/$lfile" )"
208 echo "DIMENSION $fid '$labelname' $algorithm $multiplier $divisor"
209 echo >>$TMP_DIR/sensors.sh "printf \"SET $fid = \"; cat $file "
212 echo >>$TMP_DIR/sensors.sh "echo END"
216 [ $sensors_source_update -eq 1 ] && echo >>$TMP_DIR/sensors.sh "}"
217 # cat >&2 $TMP_DIR/sensors.sh
219 # ok, load the function sensors_update() we created
220 [ $sensors_source_update -eq 1 ] && . $TMP_DIR/sensors.sh
225 # _update is called continiously, to collect the values
227 # the first argument to this function is the microseconds since last update
228 # pass this parameter to the BEGIN statement (see bellow).
230 # do all the work to collect / calculate the values
232 # remember: KEEP IT SIMPLE AND SHORT
234 [ $sensors_source_update -eq 0 ] && . $TMP_DIR/sensors.sh $1