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| author | Jean Delvare <khali@linux-fr.org> | 2005-06-24 01:37:53 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-07-12 01:10:36 +0400 |
| commit | 089bd86632769051f15cd7387eebe126d18f151f (patch) | |
| tree | 57637f07d7cb28543db158d2457804e968d2a021 /Documentation/i2c | |
| parent | 9ab1ee2ab7d65979c0f14a60ee1f29f8988f5811 (diff) | |
| download | linux-089bd86632769051f15cd7387eebe126d18f151f.tar.xz | |
[PATCH] I2C: max6875 documentation update
Here is a proposed documentation update for the new max6875 i2c chip
driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/i2c')
| -rw-r--r-- | Documentation/i2c/chips/max6875 | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/Documentation/i2c/chips/max6875 b/Documentation/i2c/chips/max6875 index b4fb49b41813..b02002898a09 100644 --- a/Documentation/i2c/chips/max6875 +++ b/Documentation/i2c/chips/max6875 @@ -2,10 +2,10 @@ Kernel driver max6875 ===================== 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 Author: Ben Gardner <bgardner@wabtec.com> @@ -23,14 +23,26 @@ Module Parameters Description ----------- -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. -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. +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. |