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Based on kernel version 3.16. Page generated on 2014-08-06 21:39 EST.

1	Kernel driver lineage-pem
2	=========================
3	
4	Supported devices:
5	  * Lineage Compact Power Line Power Entry Modules
6	    Prefix: 'lineage-pem'
7	    Addresses scanned: -
8	    Documentation:
9	        http://www.lineagepower.com/oem/pdf/CPLI2C.pdf
10	
11	Author: Guenter Roeck <linux@roeck-us.net>
12	
13	
14	Description
15	-----------
16	
17	This driver supports various Lineage Compact Power Line DC/DC and AC/DC
18	converters such as CP1800, CP2000AC, CP2000DC, CP2100DC, and others.
19	
20	Lineage CPL power entry modules are nominally PMBus compliant. However, most
21	standard PMBus commands are not supported. Specifically, all hardware monitoring
22	and status reporting commands are non-standard. For this reason, a standard
23	PMBus driver can not be used.
24	
25	
26	Usage Notes
27	-----------
28	
29	This driver does not probe for Lineage CPL devices, since there is no register
30	which can be safely used to identify the chip. You will have to instantiate
31	the devices explicitly.
32	
33	Example: the following will load the driver for a Lineage PEM at address 0x40
34	on I2C bus #1:
35	$ modprobe lineage-pem
36	$ echo lineage-pem 0x40 > /sys/bus/i2c/devices/i2c-1/new_device
37	
38	All Lineage CPL power entry modules have a built-in I2C bus master selector
39	(PCA9541). To ensure device access, this driver should only be used as client
40	driver to the pca9541 I2C master selector driver.
41	
42	
43	Sysfs entries
44	-------------
45	
46	All Lineage CPL devices report output voltage and device temperature as well as
47	alarms for output voltage, temperature, input voltage, input current, input power,
48	and fan status.
49	
50	Input voltage, input current, input power, and fan speed measurement is only
51	supported on newer devices. The driver detects if those attributes are supported,
52	and only creates respective sysfs entries if they are.
53	
54	in1_input		Output voltage (mV)
55	in1_min_alarm		Output undervoltage alarm
56	in1_max_alarm		Output overvoltage alarm
57	in1_crit		Output voltage critical alarm
58	
59	in2_input		Input voltage (mV, optional)
60	in2_alarm		Input voltage alarm
61	
62	curr1_input		Input current (mA, optional)
63	curr1_alarm		Input overcurrent alarm
64	
65	power1_input		Input power (uW, optional)
66	power1_alarm		Input power alarm
67	
68	fan1_input		Fan 1 speed (rpm, optional)
69	fan2_input		Fan 2 speed (rpm, optional)
70	fan3_input		Fan 3 speed (rpm, optional)
71	
72	temp1_input
73	temp1_max
74	temp1_crit
75	temp1_alarm
76	temp1_crit_alarm
77	temp1_fault
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