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1 | Kernel driver adm1275 |
2 | ===================== | |
3 | ||
4 | Supported chips: | |
5 | * Analog Devices ADM1275 | |
6 | Prefix: 'adm1275' | |
7 | Addresses scanned: - | |
8 | Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf | |
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9 | * Analog Devices ADM1276 |
10 | Prefix: 'adm1276' | |
11 | Addresses scanned: - | |
12 | Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf | |
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13 | |
14 | Author: Guenter Roeck <guenter.roeck@ericsson.com> | |
15 | ||
16 | ||
17 | Description | |
18 | ----------- | |
19 | ||
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20 | This driver supports hardware montoring for Analog Devices ADM1275 and ADM1276 |
21 | Hot-Swap Controller and Digital Power Monitor. | |
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23 | ADM1275 and ADM1276 are hot-swap controllers that allow a circuit board to be |
24 | removed from or inserted into a live backplane. They also feature current and | |
25 | voltage readback via an integrated 12-bit analog-to-digital converter (ADC), | |
26 | accessed using a PMBus interface. | |
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27 | |
28 | The driver is a client driver to the core PMBus driver. Please see | |
29 | Documentation/hwmon/pmbus for details on PMBus client drivers. | |
30 | ||
31 | ||
32 | Usage Notes | |
33 | ----------- | |
34 | ||
35 | This driver does not auto-detect devices. You will have to instantiate the | |
36 | devices explicitly. Please see Documentation/i2c/instantiating-devices for | |
37 | details. | |
38 | ||
39 | ||
40 | Platform data support | |
41 | --------------------- | |
42 | ||
43 | The driver supports standard PMBus driver platform data. Please see | |
44 | Documentation/hwmon/pmbus for details. | |
45 | ||
46 | ||
47 | Sysfs entries | |
48 | ------------- | |
49 | ||
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50 | The following attributes are supported. Limits are read-write, history reset |
51 | attributes are write-only, all other attributes are read-only. | |
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52 | |
53 | in1_label "vin1" or "vout1" depending on chip variant and | |
54 | configuration. | |
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55 | in1_input Measured voltage. |
56 | in1_min Minumum Voltage. | |
57 | in1_max Maximum voltage. | |
58 | in1_min_alarm Voltage low alarm. | |
59 | in1_max_alarm Voltage high alarm. | |
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60 | in1_highest Historical maximum voltage. |
61 | in1_reset_history Write any value to reset history. | |
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62 | |
63 | curr1_label "iout1" | |
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64 | curr1_input Measured current. |
65 | curr1_max Maximum current. | |
66 | curr1_max_alarm Current high alarm. | |
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67 | curr1_lcrit Critical minimum current. Depending on the chip |
68 | configuration, either curr1_lcrit or curr1_crit is | |
69 | supported, but not both. | |
70 | curr1_lcrit_alarm Critical current low alarm. | |
71 | curr1_crit Critical maximum current. Depending on the chip | |
72 | configuration, either curr1_lcrit or curr1_crit is | |
73 | supported, but not both. | |
74 | curr1_crit_alarm Critical current high alarm. | |
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75 | curr1_highest Historical maximum current. |
76 | curr1_reset_history Write any value to reset history. |