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ADM9240/DS1780 documentation and library support
* Readings for the ADM9240 are now updated every 0.5 seconds; for the DS1780, every 2.0 seconds. * I still think it likely that voltage readings will be far-off in the current implementation git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@401 7894878c-1315-0410-8ee3-d5d059ff63e0
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@@ -1,5 +1,243 @@
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adm9240 driver
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--------------
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Kernel driver `lm78.o'
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======================
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Status: Complete and tested
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Supported chips:
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* Analog Devices ADM9240
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Prefix `adm9240'
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Addresses scanned: I2C 0x2c - 0x2f (inclusive)
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Datasheet: Publicly available at the Analog Devices website
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* Dallas Semiconductor DS1780
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Prefix `ds1780'
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Addresses scanned: I2C 0x2c - 0x2f (inclusive)
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Datasheet: Publicly available at the Dallas Semiconductor website
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Author: Frodo Looijaard <frodol@dds.nl> and Philip Edelbrock
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<phil@netroedge.com>
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Module Parameters
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-----------------
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* force: short array (min = 1, max = 48)
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List of adapter,address pairs to boldly assume to be present
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* force_adm9240: short array (min = 1, max = 48)
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List of adapter,address pairs which are unquestionably assumed to contain
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a `adm9240' chip
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* force_ds1780: short array (min = 1, max = 48)
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List of adapter,address pairs which are unquestionably assumed to contain
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a `ds1780' chip
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* ignore: short array (min = 1, max = 48)
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List of adapter,address pairs not to scan
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* ignore_range: short array (min = 1, max = 48)
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List of adapter,start-addr,end-addr triples not to scan
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* probe: short array (min = 1, max = 48)
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List of adapter,address pairs to scan additionally
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* probe_range: short array (min = 1, max = 48)
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List of adapter,start-addr,end-addr triples to scan additionally
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Description
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-----------
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This driver implements support for the Analog Devices ADM9240 and
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Dallas Semiconductor DS1780 chips. These chips appear to be completely
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identical, except for the manufacturer IDs encoded in two registers, and
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the speed with which they update their sensor readings.
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The ADM9240 and DS1780 implement six voltage sensors, a temperature sensor,
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two FAN rotation speed sensors, VID lines and some miscellaneous stuff.
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Temperatures are measured in degrees Celcius. An alarm is triggered whenever
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the temperature is above the hot limit, and will continue to be generated
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until the temperature has dropped beneath the hysteris limit. Measurements
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are guaranteed between -40 and +125 degrees. The current temperature
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has a resolution of 0.5 degrees, the limits of 1 degree.
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FAN rotation speeds are reported in RPM (rotations per minute). An alarm is
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triggered if the rotation speed has dropped below a programmable limit. FAN
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readings can be divided by a programmable divider (1, 2, 4 or 8) to give
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the readings more range or accuracy. This is important because some FANs
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report only one 'tick' each rotation, while others report two - making
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all readings twice as high. Not all RPM values can accurately be represented,
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so some rounding is done. With a divider of 2, the lowest representable
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value is around 2600 RPM.
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Voltage sensors (also known as IN sensors) report their values in volts.
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An alarm is triggered if the voltage has crossed a programmable minimum
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or maximum limit. Note that minimum in this case always means 'closest to
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zero'; this is important for negative voltage measurements.
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IMPORTANT: The current voltage measurement system is very probably broken.
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Please report back to us if you have a ADM9240 or DS1780!
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The VID lines encode the core voltage value: the voltage level your processor
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should work with. This is hardcoded by the mainboard and/or processor itself.
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It is a value in volts. When it is unconnected, you will often find the
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value 3.50 V here.
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The analog output can be programmed separatedly. It can take values
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between 0 and 255. What it actually does is mainboard-dependent; it
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might influence the FAN-speed. Please report to us whether this is
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the case with your ADM9240.
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In addition to the alarms described above, the CHAS alarm triggers
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if your computer case is open.
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If an alarm triggers, it will remain triggered until the hardware register
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is read at least once. This means that the cause for the alarm may
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already have disappeared! Note that in the current implementation, all
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hardware registers are read whenever any data is read (unless it is less
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than 1.5 seconds since the last update). This means that you can easily
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miss once-only alarms.
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Thes ADM9240 only updates its values every 0.5 seconds; the DS1760 one
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every 2 seconds; reading them more often will do no harm, but will return
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'old' values. (NB: theoretically, this could be done much faster for the
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ADM9240, but there is no real reason to do so, and this way the SMBus use
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is kept within reasonable limits)
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Chip Features
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-------------
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Chip `adm9240'
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LABEL LABEL CLASS COMPUTE CLASS ACCESS MAGNITUDE
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2.5V NONE NONE R 2
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Vccp1 NONE NONE R 2
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3.3V NONE NONE R 2
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5V NONE NONE R 2
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12V NONE NONE R 2
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Vccp2 NONE NONE R 2
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2.5V_min 2.5V 2.5V RW 2
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Vccp1_min Vccp1 Vccp1 RW 2
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3.3V_min 3.3V 3.3V RW 2
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5V_min 5V 5V RW 2
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12V_min 12V 12V RW 2
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Vccp2_min Vccp2 Vccp2 RW 2
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2.5V_max 2.5V 2.5V RW 2
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Vccp1_max Vccp1 Vccp1 RW 2
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3.3V_max 3.3V 3.3V RW 2
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5V_max 5V 5V RW 2
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12V_max 12V 12V RW 2
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Vccp2_max Vccp2 Vccp2 RW 2
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fan1 NONE NONE R 0
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fan2 NONE NONE R 0
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fan1_min fan1 fan1 RW 0
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fan2_min fan2 fan2 RW 0
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temp NONE NONE R 1
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temp_hyst temp temp RW 1
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temp_over temp temp RW 1
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vid NONE NONE R 2
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fan1_div fan1 NONE RW 0
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fan2_div fan2 NONE RW 0
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alarms NONE NONE R 0
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analog_out NONE NONE RW 0
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LABEL FEATURE SYMBOL SYSCTL FILE:NR
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2.5V SENSORS_ADM9240_IN0 2.5V:3
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Vccp1 SENSORS_ADM9240_IN1 Vccp1:3
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3.3V SENSORS_ADM9240_IN2 3.3V:3
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5V SENSORS_ADM9240_IN3 5V:3
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12V SENSORS_ADM9240_IN4 12V:3
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Vccp2 SENSORS_ADM9240_IN5 Vccp2:3
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2.5V_min SENSORS_ADM9240_IN0_MIN 2.5V:1
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Vccp1_min SENSORS_ADM9240_IN1_MIN Vccp1:1
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3.3V_min SENSORS_ADM9240_IN2_MIN 3.3V:1
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5V_min SENSORS_ADM9240_IN3_MIN 5V:1
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12V_min SENSORS_ADM9240_IN4_MIN 12V:1
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Vccp2_min SENSORS_ADM9240_IN5_MIN Vccp2:1
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2.5V_max SENSORS_ADM9240_IN0_MAX 2.5V:2
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Vccp1_max SENSORS_ADM9240_IN1_MAX Vccp1:2
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3.3V_max SENSORS_ADM9240_IN2_MAX 3.3V:2
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5V_max SENSORS_ADM9240_IN3_MAX 5V:2
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12V_max SENSORS_ADM9240_IN4_MAX 12V:2
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Vccp2_max SENSORS_ADM9240_IN5_MAX Vccp2:2
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fan1 SENSORS_ADM9240_FAN1 fan1:2
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fan2 SENSORS_ADM9240_FAN2 fan2:2
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fan1_min SENSORS_ADM9240_FAN1_MIN fan1:1
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fan2_min SENSORS_ADM9240_FAN2_MIN fan2:1
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temp SENSORS_ADM9240_TEMP temp:3
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temp_hyst SENSORS_ADM9240_TEMP_HYST temp:2
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temp_over SENSORS_ADM9240_TEMP_OVER temp:1
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vid SENSORS_ADM9240_VID vid:1
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fan1_div SENSORS_ADM9240_FAN1_DIV fan_div:1
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fan2_div SENSORS_ADM9240_FAN2_DIV fan_div:2
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alarms SENSORS_ADM9240_ALARMS alarms:1
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analog_out SENSORS_ADM9240_ANALOG_OUT analog_out:1
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Chip `ds1780'
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LABEL LABEL CLASS COMPUTE CLASS ACCESS MAGNITUDE
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2.5V NONE NONE R 2
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Vccp1 NONE NONE R 2
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3.3V NONE NONE R 2
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5V NONE NONE R 2
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12V NONE NONE R 2
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Vccp2 NONE NONE R 2
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2.5V_min 2.5V 2.5V RW 2
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Vccp1_min Vccp1 Vccp1 RW 2
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3.3V_min 3.3V 3.3V RW 2
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5V_min 5V 5V RW 2
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12V_min 12V 12V RW 2
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Vccp2_min Vccp2 Vccp2 RW 2
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2.5V_max 2.5V 2.5V RW 2
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Vccp1_max Vccp1 Vccp1 RW 2
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3.3V_max 3.3V 3.3V RW 2
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5V_max 5V 5V RW 2
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12V_max 12V 12V RW 2
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Vccp2_max Vccp2 Vccp2 RW 2
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fan1 NONE NONE R 0
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fan2 NONE NONE R 0
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fan1_min fan1 fan1 RW 0
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fan2_min fan2 fan2 RW 0
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temp NONE NONE R 1
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temp_hyst temp temp RW 1
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temp_over temp temp RW 1
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vid NONE NONE R 2
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fan1_div fan1 NONE RW 0
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fan2_div fan2 NONE RW 0
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alarms NONE NONE R 0
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analog_out NONE NONE RW 0
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LABEL FEATURE SYMBOL SYSCTL FILE:NR
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2.5V SENSORS_DS1780_IN0 2.5V:3
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Vccp1 SENSORS_DS1780_IN1 Vccp1:3
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3.3V SENSORS_DS1780_IN2 3.3V:3
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5V SENSORS_DS1780_IN3 5V:3
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12V SENSORS_DS1780_IN4 12V:3
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Vccp2 SENSORS_DS1780_IN5 Vccp2:3
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2.5V_min SENSORS_DS1780_IN0_MIN 2.5V:1
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Vccp1_min SENSORS_DS1780_IN1_MIN Vccp1:1
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3.3V_min SENSORS_DS1780_IN2_MIN 3.3V:1
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5V_min SENSORS_DS1780_IN3_MIN 5V:1
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12V_min SENSORS_DS1780_IN4_MIN 12V:1
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Vccp2_min SENSORS_DS1780_IN5_MIN Vccp2:1
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2.5V_max SENSORS_DS1780_IN0_MAX 2.5V:2
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Vccp1_max SENSORS_DS1780_IN1_MAX Vccp1:2
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3.3V_max SENSORS_DS1780_IN2_MAX 3.3V:2
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5V_max SENSORS_DS1780_IN3_MAX 5V:2
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12V_max SENSORS_DS1780_IN4_MAX 12V:2
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Vccp2_max SENSORS_DS1780_IN5_MAX Vccp2:2
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fan1 SENSORS_DS1780_FAN1 fan1:2
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fan2 SENSORS_DS1780_FAN2 fan2:2
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fan1_min SENSORS_DS1780_FAN1_MIN fan1:1
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fan2_min SENSORS_DS1780_FAN2_MIN fan2:1
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temp SENSORS_DS1780_TEMP temp:3
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temp_hyst SENSORS_DS1780_TEMP_HYST temp:2
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temp_over SENSORS_DS1780_TEMP_OVER temp:1
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vid SENSORS_DS1780_VID vid:1
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fan1_div SENSORS_DS1780_FAN1_DIV fan_div:1
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fan2_div SENSORS_DS1780_FAN2_DIV fan_div:2
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alarms SENSORS_DS1780_ALARMS alarms:1
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analog_out SENSORS_DS1780_ANALOG_OUT analog_out:1
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Old Documentation
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-----------------
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Supports the Analog Devices ADM9240 and the Dallas Semiconductor DS1780.
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These chips are apparently identical except for the manufacturer ID
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register.
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@@ -549,7 +549,7 @@ void adm9240_update_client(struct i2c_client *client)
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down(&data->update_lock);
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if ((jiffies - data->last_updated > 2*HZ ) ||
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if ((jiffies - data->last_updated > (data->type == adm9240?HZ/2:HZ*2) ) ||
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(jiffies < data->last_updated) || ! data->valid) {
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#ifdef DEBUG
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+88
-2
@@ -1039,10 +1039,10 @@ static sensors_chip_feature adm9240_features[] =
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{ SENSORS_ADM9240_FAN2, "fan2", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_FAN2, VALUE(2), 0 },
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{ SENSORS_ADM9240_FAN1_MIN, "fan1_min", SENSORS_ADM9240_FAN1,
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SENSORS_NO_MAPPING, SENSORS_MODE_RW,
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SENSORS_ADM9240_FAN1, SENSORS_MODE_RW,
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ADM9240_SYSCTL_FAN1, VALUE(1), 0 },
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{ SENSORS_ADM9240_FAN2_MIN, "fan2_min", SENSORS_ADM9240_FAN2,
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SENSORS_NO_MAPPING, SENSORS_MODE_RW,
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SENSORS_ADM9240_FAN2, SENSORS_MODE_RW,
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ADM9240_SYSCTL_FAN2, VALUE(1), 0 },
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{ SENSORS_ADM9240_TEMP, "temp", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_TEMP, VALUE(3), 1 },
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@@ -1069,6 +1069,91 @@ static sensors_chip_feature adm9240_features[] =
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{ 0 }
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};
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static sensors_chip_feature ds1780_features[] =
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{
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{ SENSORS_DS1780_IN0, "2.5V", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_IN0, VALUE(3), 2 },
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{ SENSORS_DS1780_IN1, "Vccp1", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_IN1, VALUE(3), 2 },
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{ SENSORS_DS1780_IN2, "3.3V", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_IN2, VALUE(3), 2 },
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{ SENSORS_DS1780_IN3, "5V", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_IN3, VALUE(3), 2 },
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{ SENSORS_DS1780_IN4, "12V", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_IN4, VALUE(3), 2 },
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{ SENSORS_DS1780_IN5, "Vccp2", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_IN5, VALUE(3), 2 },
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{ SENSORS_DS1780_IN0_MIN, "2.5V_min", SENSORS_DS1780_IN0,
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SENSORS_DS1780_IN0, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN0, VALUE(1), 2 },
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{ SENSORS_DS1780_IN1_MIN, "Vccp1_min", SENSORS_DS1780_IN1,
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SENSORS_DS1780_IN1, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN1, VALUE(1), 2 },
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{ SENSORS_DS1780_IN2_MIN, "3.3V_min", SENSORS_DS1780_IN2,
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SENSORS_DS1780_IN2, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN2, VALUE(1), 2 },
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{ SENSORS_DS1780_IN3_MIN, "5V_min", SENSORS_DS1780_IN3,
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SENSORS_DS1780_IN3, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN3, VALUE(1), 2 },
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{ SENSORS_DS1780_IN4_MIN, "12V_min", SENSORS_DS1780_IN4,
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SENSORS_DS1780_IN4, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN4, VALUE(1), 2 },
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{ SENSORS_DS1780_IN5_MIN, "Vccp2_min", SENSORS_DS1780_IN5,
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SENSORS_DS1780_IN5, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN5, VALUE(1), 2 },
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{ SENSORS_DS1780_IN0_MAX, "2.5V_max", SENSORS_DS1780_IN0,
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SENSORS_DS1780_IN0, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN0, VALUE(2), 2 },
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{ SENSORS_DS1780_IN1_MAX, "Vccp1_max", SENSORS_DS1780_IN1,
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SENSORS_DS1780_IN1, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN1, VALUE(2), 2 },
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{ SENSORS_DS1780_IN2_MAX, "3.3V_max", SENSORS_DS1780_IN2,
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SENSORS_DS1780_IN2, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN2, VALUE(2), 2 },
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{ SENSORS_DS1780_IN3_MAX, "5V_max", SENSORS_DS1780_IN3,
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SENSORS_DS1780_IN3, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN3, VALUE(2), 2 },
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{ SENSORS_DS1780_IN4_MAX, "12V_max", SENSORS_DS1780_IN4,
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SENSORS_DS1780_IN4, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN4, VALUE(2), 2 },
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{ SENSORS_DS1780_IN5_MAX, "Vccp2_max", SENSORS_DS1780_IN5,
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SENSORS_DS1780_IN5, SENSORS_MODE_RW,
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ADM9240_SYSCTL_IN5, VALUE(2), 2 },
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{ SENSORS_DS1780_FAN1, "fan1", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_FAN1, VALUE(2), 0 },
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{ SENSORS_DS1780_FAN2, "fan2", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
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SENSORS_MODE_R, ADM9240_SYSCTL_FAN2, VALUE(2), 0 },
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{ SENSORS_DS1780_FAN1_MIN, "fan1_min", SENSORS_DS1780_FAN1,
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SENSORS_DS1780_FAN1, SENSORS_MODE_RW,
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ADM9240_SYSCTL_FAN1, VALUE(1), 0 },
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{ SENSORS_DS1780_FAN2_MIN, "fan2_min", SENSORS_DS1780_FAN2,
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SENSORS_DS1780_FAN2, SENSORS_MODE_RW,
|
||||
ADM9240_SYSCTL_FAN2, VALUE(1), 0 },
|
||||
{ SENSORS_DS1780_TEMP, "temp", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
|
||||
SENSORS_MODE_R, ADM9240_SYSCTL_TEMP, VALUE(3), 1 },
|
||||
{ SENSORS_DS1780_TEMP_HYST, "temp_hyst", SENSORS_DS1780_TEMP,
|
||||
SENSORS_DS1780_TEMP, SENSORS_MODE_RW,
|
||||
ADM9240_SYSCTL_TEMP, VALUE(2), 1 },
|
||||
{ SENSORS_DS1780_TEMP_OVER, "temp_over", SENSORS_DS1780_TEMP,
|
||||
SENSORS_DS1780_TEMP, SENSORS_MODE_RW,
|
||||
ADM9240_SYSCTL_TEMP, VALUE(1), 1 },
|
||||
|
||||
{ SENSORS_DS1780_VID, "vid", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
|
||||
SENSORS_MODE_R, ADM9240_SYSCTL_VID, VALUE(1), 2 },
|
||||
{ SENSORS_DS1780_FAN1_DIV, "fan1_div", SENSORS_DS1780_FAN1,
|
||||
SENSORS_NO_MAPPING, SENSORS_MODE_RW,
|
||||
ADM9240_SYSCTL_FAN_DIV, VALUE(1), 0 },
|
||||
{ SENSORS_DS1780_FAN2_DIV, "fan2_div", SENSORS_DS1780_FAN2,
|
||||
SENSORS_NO_MAPPING, SENSORS_MODE_RW,
|
||||
ADM9240_SYSCTL_FAN_DIV, VALUE(2), 0 },
|
||||
{ SENSORS_DS1780_ALARMS, "alarms", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
|
||||
SENSORS_MODE_R, ADM9240_SYSCTL_ALARMS, VALUE(1), 0 },
|
||||
{ SENSORS_DS1780_ANALOG_OUT, "analog_out", SENSORS_NO_MAPPING,
|
||||
SENSORS_NO_MAPPING, SENSORS_MODE_RW,
|
||||
ADM9240_SYSCTL_ANALOG_OUT, VALUE(1), 0 },
|
||||
{ 0 }
|
||||
};
|
||||
|
||||
static sensors_chip_feature sis5595_features[] =
|
||||
{
|
||||
{ SENSORS_SIS5595_IN0, "in0", SENSORS_NO_MAPPING, SENSORS_NO_MAPPING,
|
||||
@@ -1257,6 +1342,7 @@ sensors_chip_features sensors_chip_features_list[] =
|
||||
{ SENSORS_W83782D_PREFIX, w83782d_features },
|
||||
{ SENSORS_W83783S_PREFIX, w83783s_features },
|
||||
{ SENSORS_ADM9240_PREFIX, adm9240_features },
|
||||
{ SENSORS_DS1780_PREFIX, ds1780_features },
|
||||
{ SENSORS_ADM1021_PREFIX, adm1021_features },
|
||||
{ SENSORS_MAX1617_PREFIX, max1617_features },
|
||||
{ SENSORS_MAX1617A_PREFIX, max1617a_features },
|
||||
|
||||
+35
@@ -498,6 +498,41 @@
|
||||
#define SENSORS_ADM9240_ALARMS 81 /* R */
|
||||
#define SENSORS_ADM9240_ANALOG_OUT 82 /* RW */
|
||||
|
||||
/* Analog Devices ADM9240 chips */
|
||||
|
||||
#define SENSORS_DS1780_PREFIX "ds1780"
|
||||
|
||||
#define SENSORS_DS1780_IN0 1 /* R */
|
||||
#define SENSORS_DS1780_IN1 2 /* R */
|
||||
#define SENSORS_DS1780_IN2 3 /* R */
|
||||
#define SENSORS_DS1780_IN3 4 /* R */
|
||||
#define SENSORS_DS1780_IN4 5 /* R */
|
||||
#define SENSORS_DS1780_IN5 6 /* R */
|
||||
#define SENSORS_DS1780_IN0_MIN 11 /* RW */
|
||||
#define SENSORS_DS1780_IN1_MIN 12 /* RW */
|
||||
#define SENSORS_DS1780_IN2_MIN 13 /* RW */
|
||||
#define SENSORS_DS1780_IN3_MIN 14 /* RW */
|
||||
#define SENSORS_DS1780_IN4_MIN 15 /* RW */
|
||||
#define SENSORS_DS1780_IN5_MIN 16 /* RW */
|
||||
#define SENSORS_DS1780_IN0_MAX 21 /* RW */
|
||||
#define SENSORS_DS1780_IN1_MAX 22 /* RW */
|
||||
#define SENSORS_DS1780_IN2_MAX 23 /* RW */
|
||||
#define SENSORS_DS1780_IN3_MAX 24 /* RW */
|
||||
#define SENSORS_DS1780_IN4_MAX 25 /* RW */
|
||||
#define SENSORS_DS1780_IN5_MAX 26 /* RW */
|
||||
#define SENSORS_DS1780_FAN1 31 /* R */
|
||||
#define SENSORS_DS1780_FAN2 32 /* R */
|
||||
#define SENSORS_DS1780_FAN1_MIN 41 /* RW */
|
||||
#define SENSORS_DS1780_FAN2_MIN 42 /* RW */
|
||||
#define SENSORS_DS1780_TEMP 51 /* R */
|
||||
#define SENSORS_DS1780_TEMP_HYST 52 /* RW */
|
||||
#define SENSORS_DS1780_TEMP_OVER 53 /* RW */
|
||||
#define SENSORS_DS1780_VID 61 /* R */
|
||||
#define SENSORS_DS1780_FAN1_DIV 71 /* RW */
|
||||
#define SENSORS_DS1780_FAN2_DIV 72 /* RW */
|
||||
#define SENSORS_DS1780_ALARMS 81 /* R */
|
||||
#define SENSORS_DS1780_ANALOG_OUT 82 /* RW */
|
||||
|
||||
/* SiS southbridge with integrated lm78 */
|
||||
|
||||
#define SENSORS_SIS5595_PREFIX "sis5595"
|
||||
|
||||
Reference in new issue
Block a user