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Diffstat (limited to 'Documentation/i2c/chips/max6875')
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diff --git a/Documentation/i2c/chips/max6875 b/Documentation/i2c/chips/max6875 deleted file mode 100644 index b02002898a0..00000000000 --- a/Documentation/i2c/chips/max6875 +++ /dev/null @@ -1,66 +0,0 @@ -Kernel driver max6875 -===================== - -Supported chips: - * Maxim MAX6874, MAX6875 - Prefix: 'max6875' - Addresses scanned: 0x50, 0x52 - Datasheet: - http://pdfserv.maxim-ic.com/en/ds/MAX6874-MAX6875.pdf - -Author: Ben Gardner <bgardner@wabtec.com> - - -Module Parameters ------------------ - -* allow_write int - Set to non-zero to enable write permission: - *0: Read only - 1: Read and write - - -Description ------------ - -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. - -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. - -The Maxim MAX6874 is a similar, mostly compatible device, with more intputs -and outputs: - - vin gpi vout -MAX6874 6 4 8 -MAX6875 4 3 5 - -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. - -See the datasheet for details on how to program the EEPROM. - - -Sysfs entries -------------- - -eeprom_user - 512 bytes of user-defined EEPROM space. Only writable if - allow_write was set and register 0x43 is 0. - -eeprom_config - 70 bytes of config EEPROM. Note that changes will not get - loaded into register space until a power cycle or device reset. - -reg_config - 70 bytes of register space. Any changes take affect immediately. - - -General Remarks ---------------- - -A typical application will require that the EEPROMs be programmed once and -never altered afterwards. - |