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authorGuenter Roeck <linux@roeck-us.net>2013-02-22 07:52:39 -0800
committerGuenter Roeck <linux@roeck-us.net>2013-04-07 21:16:41 -0700
commit8c770f3a472fa74ad86871f42f6e991951ddeed2 (patch)
treecca01034a758c46de5ba5ca1fa58adee9f65ba85 /Documentation/hwmon
parent3d0d2839937778bd19bf505b38093d829a1cdf69 (diff)
hwmon: (pmbus/ltc2978) Clean up documentation
Some sysfs attributes are only supported on LTC2978 and not on LTC3880. Update documentation to reflect which attributes are supported for which chips. Output current attributes supported on LTC3880 were described as providing input current values. Fix text to reflect that the attributes provide output current values. "reset history" attribute descriptions were misleading and seemed to imply that all history was reset when writing a single attribute. Replace with more accurate text. Replace 'internal temperature" with "chip temperature". Temperature limits not only apply to the chip temperature, but also to external temperatures on LTC3880, so remove the word "chip" from the attribute description. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
-rw-r--r--Documentation/hwmon/ltc297841
1 files changed, 19 insertions, 22 deletions
diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978
index e4d75c606c97..dcb10be36e7f 100644
--- a/Documentation/hwmon/ltc2978
+++ b/Documentation/hwmon/ltc2978
@@ -41,17 +41,16 @@ 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_max Maximum input voltage. LTC2978 only.
+in1_lcrit Critical minimum input voltage. LTC2978 only.
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_max_alarm Input voltage high alarm. LTC2978 only.
+in1_lcrit_alarm Input voltage critical low alarm. LTC2978 only.
in1_crit_alarm Input voltage critical high alarm.
in1_lowest Lowest input voltage. LTC2978 only.
in1_highest Highest input voltage.
-in1_reset_history Reset history. Writing into this attribute will reset
- history for all attributes.
+in1_reset_history Reset input voltage history.
in[2-9]_label "vout[1-8]". Channels 3 to 9 on LTC2978 only.
in[2-9]_input Measured output voltage.
@@ -65,27 +64,25 @@ 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. LTC2978 only.
in[2-9]_highest Lowest output voltage.
-in[2-9]_reset_history Reset history. Writing into this attribute will reset
- history for all attributes.
+in[2-9]_reset_history Reset output voltage history.
temp[1-3]_input Measured temperature.
On LTC2978, only one temperature measurement is
- supported and reflects the internal temperature.
+ supported and reports the chip temperature.
On LTC3880, temp1 and temp2 report external
- temperatures, and temp3 reports the internal
+ temperatures, and temp3 reports the chip
temperature.
-temp[1-3]_min Mimimum temperature.
+temp[1-3]_min Mimimum temperature. LTC2978 only.
temp[1-3]_max Maximum temperature.
temp[1-3]_lcrit Critical low temperature.
temp[1-3]_crit Critical high temperature.
-temp[1-3]_min_alarm Chip temperature low alarm.
-temp[1-3]_max_alarm Chip temperature high alarm.
-temp[1-3]_lcrit_alarm Chip temperature critical low alarm.
-temp[1-3]_crit_alarm Chip temperature critical high alarm.
+temp[1-3]_min_alarm Temperature low alarm. LTC2978 only.
+temp[1-3]_max_alarm Temperature high alarm.
+temp[1-3]_lcrit_alarm Temperature critical low alarm.
+temp[1-3]_crit_alarm Temperature critical high alarm.
temp[1-3]_lowest Lowest measured temperature. LTC2978 only.
temp[1-3]_highest Highest measured temperature.
-temp[1-3]_reset_history Reset history. Writing into this attribute will reset
- history for all attributes.
+temp[1-3]_reset_history Reset temperature history.
power[1-2]_label "pout[1-2]". LTC3880 only.
power[1-2]_input Measured power.
@@ -96,8 +93,8 @@ curr1_max Maximum input current.
curr1_max_alarm Input current high alarm.
curr[2-3]_label "iout[1-2]". LTC3880 only.
-curr[2-3]_input Measured input current.
-curr[2-3]_max Maximum input current.
-curr[2-3]_crit Critical input current.
-curr[2-3]_max_alarm Input current high alarm.
-curr[2-3]_crit_alarm Input current critical high alarm.
+curr[2-3]_input Measured output current.
+curr[2-3]_max Maximum output current.
+curr[2-3]_crit Critical output current.
+curr[2-3]_max_alarm Output current high alarm.
+curr[2-3]_crit_alarm Output current critical high alarm.