diff options
Diffstat (limited to 'Documentation/hwmon/sysfs-interface')
| -rw-r--r-- | Documentation/hwmon/sysfs-interface | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index 3de6b0bcb14..48ceabedf55 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -80,9 +80,9 @@ All entries (except name) are optional, and should only be created in a given driver if the chip has the feature. -******** -* Name * -******** +********************* +* Global attributes * +********************* name The chip name. This should be a short, lowercase string, not containing @@ -91,6 +91,12 @@ name The chip name. I2C devices get this attribute created automatically. RO +update_interval The interval at which the chip will update readings. + Unit: millisecond + RW + Some devices have a variable update rate or interval. + This attribute can be used to change it to the desired value. + ************ * Voltages * @@ -100,10 +106,24 @@ in[0-*]_min Voltage min value. Unit: millivolt RW +in[0-*]_lcrit Voltage critical min value. + Unit: millivolt + RW + If voltage drops to or below this limit, the system may + take drastic action such as power down or reset. At the very + least, it should report a fault. + in[0-*]_max Voltage max value. Unit: millivolt RW +in[0-*]_crit Voltage critical max value. + Unit: millivolt + RW + If voltage reaches or exceeds this limit, the system may + take drastic action such as power down or reset. At the very + least, it should report a fault. + in[0-*]_input Voltage input value. Unit: millivolt RO @@ -277,7 +297,7 @@ temp[1-*]_input Temperature input value. Unit: millidegree Celsius RO -temp[1-*]_crit Temperature critical value, typically greater than +temp[1-*]_crit Temperature critical max value, typically greater than corresponding temp_max values. Unit: millidegree Celsius RW @@ -289,6 +309,11 @@ temp[1-*]_crit_hyst from the critical value. RW +temp[1-*]_lcrit Temperature critical min value, typically lower than + corresponding temp_min values. + Unit: millidegree Celsius + RW + temp[1-*]_offset Temperature offset which is added to the temperature reading by the chip. @@ -337,9 +362,6 @@ Also see the Alarms section for status flags associated with temperatures. * Currents * ************ -Note that no known chip provides current measurements as of writing, -so this part is theoretical, so to say. - curr[1-*]_max Current max value Unit: milliampere RW @@ -464,6 +486,7 @@ limit-related alarms, not both. The driver should just reflect the hardware implementation. in[0-*]_alarm +curr[1-*]_alarm fan[1-*]_alarm temp[1-*]_alarm Channel alarm @@ -475,6 +498,8 @@ OR in[0-*]_min_alarm in[0-*]_max_alarm +curr[1-*]_min_alarm +curr[1-*]_max_alarm fan[1-*]_min_alarm fan[1-*]_max_alarm temp[1-*]_min_alarm @@ -490,7 +515,6 @@ to notify open diodes, unconnected fans etc. where the hardware supports it. When this boolean has value 1, the measurement for that channel should not be trusted. -in[0-*]_fault fan[1-*]_fault temp[1-*]_fault Input fault condition @@ -506,6 +530,7 @@ beep_enable Master beep enable RW in[0-*]_beep +curr[1-*]_beep fan[1-*]_beep temp[1-*]_beep Channel beep |