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-rw-r--r--Documentation/hwmon/lm9029
1 files changed, 20 insertions, 9 deletions
diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90
index fa475c0a48a3..f3efd18e87f4 100644
--- a/Documentation/hwmon/lm90
+++ b/Documentation/hwmon/lm90
@@ -32,6 +32,16 @@ Supported chips:
32 Addresses scanned: I2C 0x4c and 0x4d 32 Addresses scanned: I2C 0x4c and 0x4d
33 Datasheet: Publicly available at the ON Semiconductor website 33 Datasheet: Publicly available at the ON Semiconductor website
34 http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461 34 http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461
35 * Analog Devices ADT7461A
36 Prefix: 'adt7461a'
37 Addresses scanned: I2C 0x4c and 0x4d
38 Datasheet: Publicly available at the ON Semiconductor website
39 http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461A
40 * ON Semiconductor NCT1008
41 Prefix: 'nct1008'
42 Addresses scanned: I2C 0x4c and 0x4d
43 Datasheet: Publicly available at the ON Semiconductor website
44 http://www.onsemi.com/PowerSolutions/product.do?id=NCT1008
35 * Maxim MAX6646 45 * Maxim MAX6646
36 Prefix: 'max6646' 46 Prefix: 'max6646'
37 Addresses scanned: I2C 0x4d 47 Addresses scanned: I2C 0x4d
@@ -149,7 +159,7 @@ ADM1032:
149 * ALERT is triggered by open remote sensor. 159 * ALERT is triggered by open remote sensor.
150 * SMBus PEC support for Write Byte and Receive Byte transactions. 160 * SMBus PEC support for Write Byte and Receive Byte transactions.
151 161
152ADT7461: 162ADT7461, ADT7461A, NCT1008:
153 * Extended temperature range (breaks compatibility) 163 * Extended temperature range (breaks compatibility)
154 * Lower resolution for remote temperature 164 * Lower resolution for remote temperature
155 165
@@ -195,9 +205,9 @@ are exported, one for each channel, but these values are of course linked.
195Only the local hysteresis can be set from user-space, and the same delta 205Only the local hysteresis can be set from user-space, and the same delta
196applies to the remote hysteresis. 206applies to the remote hysteresis.
197 207
198The lm90 driver will not update its values more frequently than every 208The lm90 driver will not update its values more frequently than configured with
199other second; reading them more often will do no harm, but will return 209the update_interval attribute; reading them more often will do no harm, but will
200'old' values. 210return 'old' values.
201 211
202SMBus Alert Support 212SMBus Alert Support
203------------------- 213-------------------
@@ -205,11 +215,12 @@ SMBus Alert Support
205This driver has basic support for SMBus alert. When an alert is received, 215This driver has basic support for SMBus alert. When an alert is received,
206the status register is read and the faulty temperature channel is logged. 216the status register is read and the faulty temperature channel is logged.
207 217
208The Analog Devices chips (ADM1032 and ADT7461) do not implement the SMBus 218The Analog Devices chips (ADM1032, ADT7461 and ADT7461A) and ON
209alert protocol properly so additional care is needed: the ALERT output is 219Semiconductor chips (NCT1008) do not implement the SMBus alert protocol
210disabled when an alert is received, and is re-enabled only when the alarm 220properly so additional care is needed: the ALERT output is disabled when
211is gone. Otherwise the chip would block alerts from other chips in the bus 221an alert is received, and is re-enabled only when the alarm is gone.
212as long as the alarm is active. 222Otherwise the chip would block alerts from other chips in the bus as long
223as the alarm is active.
213 224
214PEC Support 225PEC Support
215----------- 226-----------