diff options
Diffstat (limited to 'Documentation/hwmon/ltc2978')
| -rw-r--r-- | Documentation/hwmon/ltc2978 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978 new file mode 100644 index 000000000000..499129e11897 --- /dev/null +++ b/Documentation/hwmon/ltc2978 @@ -0,0 +1,78 @@ +Kernel driver ltc2978 +===================== + +Supported chips: + * Linear Technology LTC2978 + Prefix: 'ltc2978' + Addresses scanned: - + Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf + +Author: Guenter Roeck <guenter.roeck@ericsson.com> + + +Description +----------- + +The LTC2978 is an octal power supply monitor, supervisor, sequencer and +margin controller. + + +Usage Notes +----------- + +This driver does not probe for PMBus devices. You will have to instantiate +devices explicitly. + +Example: the following commands will load the driver for an LTC2978 at address +0x60 on I2C bus #1: + +# modprobe ltc2978 +# echo ltc2978 0x60 > /sys/bus/i2c/devices/i2c-1/new_device + + +Sysfs attributes +---------------- + +in1_label "vin" +in1_input Measured input voltage. +in1_min Minimum input voltage. +in1_max Maximum input voltage. +in1_lcrit Critical minimum input voltage. +in1_crit Critical maximum input voltage. +in1_min_alarm Input voltage low alarm. +in1_max_alarm Input voltage high alarm. +in1_lcrit_alarm Input voltage critical low alarm. +in1_crit_alarm Input voltage critical high alarm. +in1_lowest Lowest input voltage. +in1_highest Highest input voltage. +in1_reset_history Reset history. Writing into this attribute will reset + history for all attributes. + +in[2-9]_label "vout[1-8]". +in[2-9]_input Measured output voltage. +in[2-9]_min Minimum output voltage. +in[2-9]_max Maximum output voltage. +in[2-9]_lcrit Critical minimum output voltage. +in[2-9]_crit Critical maximum output voltage. +in[2-9]_min_alarm Output voltage low alarm. +in[2-9]_max_alarm Output voltage high alarm. +in[2-9]_lcrit_alarm Output voltage critical low alarm. +in[2-9]_crit_alarm Output voltage critical high alarm. +in[2-9]_lowest Lowest output voltage. +in[2-9]_highest Lowest output voltage. +in[2-9]_reset_history Reset history. Writing into this attribute will reset + history for all attributes. + +temp1_input Measured temperature. +temp1_min Mimimum temperature. +temp1_max Maximum temperature. +temp1_lcrit Critical low temperature. +temp1_crit Critical high temperature. +temp1_min_alarm Chip temperature low alarm. +temp1_max_alarm Chip temperature high alarm. +temp1_lcrit_alarm Chip temperature critical low alarm. +temp1_crit_alarm Chip temperature critical high alarm. +temp1_lowest Lowest measured temperature. +temp1_highest Highest measured temperature. +temp1_reset_history Reset history. Writing into this attribute will reset + history for all attributes. |