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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-03-27 18:32:29 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-03-27 18:32:29 +0400
commit50953e0640b3473dcb409d5d0d938c2742c93b0d (patch)
tree3b0dc374e61564fbbd8adff92c8fae16fdeb423a /Documentation/hwmon/adm1275
parentf92c97c8bd77992ff8bd6ef29a23dc82dca799cb (diff)
parent626cf236608505d376e4799adb4f7eb00a8594af (diff)
downloadlinux-50953e0640b3473dcb409d5d0d938c2742c93b0d.tar.xz
Merge branch 'poll' into staging/for_v3.4
* poll: (5970 commits) poll: add poll_requested_events() and poll_does_not_wait() functions crc32: select an algorithm via Kconfig crc32: add self-test code for crc32c crypto: crc32c should use library implementation crc32: bolt on crc32c crc32: add note about this patchset to crc32.c crc32: optimize loop counter for x86 crc32: add slice-by-8 algorithm to existing code crc32: make CRC_*_BITS definition correspond to actual bit counts crc32: fix mixing of endian-specific types crc32: miscellaneous cleanups crc32: simplify unit test code crc32: move long comment about crc32 fundamentals to Documentation/ crc32: remove two instances of trailing whitespaces checkpatch: check for quoted strings broken across lines checkpatch: whitespace - add/remove blank lines checkpatch: warn on use of yield() checkpatch: add --strict tests for braces, comments and casts checkpatch: add [] to type extensions checkpatch: high precedence operators do not require additional parentheses in #defines ...
Diffstat (limited to 'Documentation/hwmon/adm1275')
-rw-r--r--Documentation/hwmon/adm127532
1 files changed, 24 insertions, 8 deletions
diff --git a/Documentation/hwmon/adm1275 b/Documentation/hwmon/adm1275
index ab70d96d2dfd..2cfa25667123 100644
--- a/Documentation/hwmon/adm1275
+++ b/Documentation/hwmon/adm1275
@@ -2,6 +2,10 @@ Kernel driver adm1275
=====================
Supported chips:
+ * Analog Devices ADM1075
+ Prefix: 'adm1075'
+ Addresses scanned: -
+ Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf
* Analog Devices ADM1275
Prefix: 'adm1275'
Addresses scanned: -
@@ -17,13 +21,13 @@ Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
-This driver supports hardware montoring for Analog Devices ADM1275 and ADM1276
-Hot-Swap Controller and Digital Power Monitor.
+This driver supports hardware montoring for Analog Devices ADM1075, ADM1275,
+and ADM1276 Hot-Swap Controller and Digital Power Monitor.
-ADM1275 and ADM1276 are hot-swap controllers that allow a circuit board to be
-removed from or inserted into a live backplane. They also feature current and
-voltage readback via an integrated 12-bit analog-to-digital converter (ADC),
-accessed using a PMBus interface.
+ADM1075, ADM1275, and ADM1276 are hot-swap controllers that allow a circuit
+board to be removed from or inserted into a live backplane. They also feature
+current and voltage readback via an integrated 12-bit analog-to-digital
+converter (ADC), accessed using a PMBus interface.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
@@ -36,6 +40,10 @@ This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
+The ADM1075, unlike many other PMBus devices, does not support internal voltage
+or current scaling. Reported voltages, currents, and power are raw measurements,
+and will typically have to be scaled.
+
Platform data support
---------------------
@@ -51,9 +59,10 @@ The following attributes are supported. Limits are read-write, history reset
attributes are write-only, all other attributes are read-only.
in1_label "vin1" or "vout1" depending on chip variant and
- configuration.
+ configuration. On ADM1075, vout1 reports the voltage on
+ the VAUX pin.
in1_input Measured voltage.
-in1_min Minumum Voltage.
+in1_min Minimum Voltage.
in1_max Maximum voltage.
in1_min_alarm Voltage low alarm.
in1_max_alarm Voltage high alarm.
@@ -74,3 +83,10 @@ curr1_crit Critical maximum current. Depending on the chip
curr1_crit_alarm Critical current high alarm.
curr1_highest Historical maximum current.
curr1_reset_history Write any value to reset history.
+
+power1_label "pin1"
+power1_input Input power.
+power1_reset_history Write any value to reset history.
+
+ Power attributes are supported on ADM1075 and ADM1276
+ only.