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Original file line number | Diff line number | Diff line change |
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@@ -2,10 +2,10 @@ Kernel driver max6875 | |
===================== | ||
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||
Supported chips: | ||
* Maxim max6874, max6875 | ||
Prefixes: 'max6875' | ||
* Maxim MAX6874, MAX6875 | ||
Prefix: 'max6875' | ||
Addresses scanned: 0x50, 0x52 | ||
Datasheets: | ||
Datasheet: | ||
http://pdfserv.maxim-ic.com/en/ds/MAX6874-MAX6875.pdf | ||
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Author: Ben Gardner <[email protected]> | ||
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@@ -23,14 +23,26 @@ Module Parameters | |
Description | ||
----------- | ||
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The MAXIM max6875 is a EEPROM-programmable power-supply sequencer/supervisor. | ||
The Maxim MAX6875 is an EEPROM-programmable power-supply sequencer/supervisor. | ||
It provides timed outputs that can be used as a watchdog, if properly wired. | ||
It also provides 512 bytes of user EEPROM. | ||
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At reset, the max6875 reads the configuration eeprom into its configuration | ||
At reset, the MAX6875 reads the configuration EEPROM into its configuration | ||
registers. The chip then begins to operate according to the values in the | ||
registers. | ||
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The Maxim MAX6874 is a similar, mostly compatible device, with more intputs | ||
and outputs: | ||
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vin gpi vout | ||
MAX6874 6 4 8 | ||
MAX6875 4 3 5 | ||
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MAX6874 chips can have four different addresses (as opposed to only two for | ||
the MAX6875). The additional addresses (0x54 and 0x56) are not probed by | ||
this driver by default, but the probe module parameter can be used if | ||
needed. | ||
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See the datasheet for details on how to program the EEPROM. | ||
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