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Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/lm85 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/hwmon/lm85 b/Documentation/hwmon/lm85 index 83cd5bb1ac79..239258a63c81 100644 --- a/Documentation/hwmon/lm85 +++ b/Documentation/hwmon/lm85 | |||
| @@ -101,6 +101,13 @@ Devices has confirmed this "bug". The ADT7463 is reported to work as | |||
| 101 | described in the documentation. The current lm85 driver does not show the | 101 | described in the documentation. The current lm85 driver does not show the |
| 102 | offset register. | 102 | offset register. |
| 103 | 103 | ||
| 104 | The ADT7468 has a high-frequency PWM mode, where all PWM outputs are | ||
| 105 | driven by a 22.5 kHz clock. This is a global mode, not per-PWM output, | ||
| 106 | which means that setting any PWM frequency above 11.3 kHz will switch | ||
| 107 | all 3 PWM outputs to a 22.5 kHz frequency. Conversely, setting any PWM | ||
| 108 | frequency below 11.3 kHz will switch all 3 PWM outputs to a frequency | ||
| 109 | between 10 and 100 Hz, which can then be tuned separately. | ||
| 110 | |||
| 104 | See the vendor datasheets for more information. There is application note | 111 | See the vendor datasheets for more information. There is application note |
| 105 | from National (AN-1260) with some additional information about the LM85. | 112 | from National (AN-1260) with some additional information about the LM85. |
| 106 | The Analog Devices datasheet is very detailed and describes a procedure for | 113 | The Analog Devices datasheet is very detailed and describes a procedure for |