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0ea6e61122
Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
64 lines
2.5 KiB
Plaintext
64 lines
2.5 KiB
Plaintext
Kernel driver smsc47m1
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======================
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Supported chips:
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* SMSC LPC47B27x, LPC47M112, LPC47M10x, LPC47M13x, LPC47M14x,
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LPC47M15x and LPC47M192
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Addresses scanned: none, address read from Super I/O config space
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Prefix: 'smsc47m1'
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Datasheets:
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http://www.smsc.com/media/Downloads_Public/Data_Sheets/47b272.pdf
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http://www.smsc.com/media/Downloads_Public/Data_Sheets/47m10x.pdf
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http://www.smsc.com/media/Downloads_Public/Data_Sheets/47m112.pdf
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http://www.smsc.com/
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* SMSC LPC47M292
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Addresses scanned: none, address read from Super I/O config space
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Prefix: 'smsc47m2'
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Datasheet: Not public
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* SMSC LPC47M997
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Addresses scanned: none, address read from Super I/O config space
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Prefix: 'smsc47m1'
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Datasheet: none
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Authors:
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Mark D. Studebaker <mdsxyz123@yahoo.com>,
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With assistance from Bruce Allen <ballen@uwm.edu>, and his
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fan.c program: http://www.lsc-group.phys.uwm.edu/%7Eballen/driver/
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Gabriele Gorla <gorlik@yahoo.com>,
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Jean Delvare <khali@linux-fr.org>
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Description
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-----------
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The Standard Microsystems Corporation (SMSC) 47M1xx Super I/O chips
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contain monitoring and PWM control circuitry for two fans.
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The LPC47M15x, LPC47M192 and LPC47M292 chips contain a full 'hardware
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monitoring block' in addition to the fan monitoring and control. The
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hardware monitoring block is not supported by this driver, use the
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smsc47m192 driver for that.
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No documentation is available for the 47M997, but it has the same device
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ID as the 47M15x and 47M192 chips and seems to be compatible.
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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. Not all RPM values can accurately be
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represented, so some rounding is done. With a divider of 2, the lowest
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representable value is around 2600 RPM.
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PWM values are from 0 to 255.
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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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**********************
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The lm_sensors project gratefully acknowledges the support of
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Intel in the development of this driver.
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