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-Kernel driver smsc47m1
-======================
-
-Supported chips:
- * SMSC LPC47B27x, LPC47M112, LPC47M10x, LPC47M13x, LPC47M14x,
- LPC47M15x and LPC47M192
- Addresses scanned: none, address read from Super I/O config space
- Prefix: 'smsc47m1'
- Datasheets:
- http://www.smsc.com/media/Downloads_Public/Data_Sheets/47b272.pdf
- http://www.smsc.com/media/Downloads_Public/Data_Sheets/47m10x.pdf
- http://www.smsc.com/media/Downloads_Public/Data_Sheets/47m112.pdf
- http://www.smsc.com/
- * SMSC LPC47M292
- Addresses scanned: none, address read from Super I/O config space
- Prefix: 'smsc47m2'
- Datasheet: Not public
- * SMSC LPC47M997
- Addresses scanned: none, address read from Super I/O config space
- Prefix: 'smsc47m1'
- Datasheet: none
-
-Authors:
- Mark D. Studebaker <mdsxyz123@yahoo.com>,
- With assistance from Bruce Allen <ballen@uwm.edu>, and his
- fan.c program: http://www.lsc-group.phys.uwm.edu/%7Eballen/driver/
- Gabriele Gorla <gorlik@yahoo.com>,
- Jean Delvare <khali@linux-fr.org>
-
-Description
------------
-
-The Standard Microsystems Corporation (SMSC) 47M1xx Super I/O chips
-contain monitoring and PWM control circuitry for two fans.
-
-The LPC47M15x, LPC47M192 and LPC47M292 chips contain a full 'hardware
-monitoring block' in addition to the fan monitoring and control. The
-hardware monitoring block is not supported by this driver, use the
-smsc47m192 driver for that.
-
-No documentation is available for the 47M997, but it has the same device
-ID as the 47M15x and 47M192 chips and seems to be compatible.
-
-Fan rotation speeds are reported in RPM (rotations per minute). An alarm is
-triggered if the rotation speed has dropped below a programmable limit. Fan
-readings can be divided by a programmable divider (1, 2, 4 or 8) to give
-the readings more range or accuracy. Not all RPM values can accurately be
-represented, so some rounding is done. With a divider of 2, the lowest
-representable value is around 2600 RPM.
-
-PWM values are from 0 to 255.
-
-If an alarm triggers, it will remain triggered until the hardware register
-is read at least once. This means that the cause for the alarm may
-already have disappeared! Note that in the current implementation, all
-hardware registers are read whenever any data is read (unless it is less
-than 1.5 seconds since the last update). This means that you can easily
-miss once-only alarms.
-
-
-**********************
-The lm_sensors project gratefully acknowledges the support of
-Intel in the development of this driver.