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

1	Kernel driver w83627hf
2	======================
3	
4	Supported chips:
5	  * Winbond W83627HF (ISA accesses ONLY)
6	    Prefix: 'w83627hf'
7	    Addresses scanned: ISA address retrieved from Super I/O registers
8	  * Winbond W83627THF
9	    Prefix: 'w83627thf'
10	    Addresses scanned: ISA address retrieved from Super I/O registers
11	  * Winbond W83697HF
12	    Prefix: 'w83697hf'
13	    Addresses scanned: ISA address retrieved from Super I/O registers
14	  * Winbond W83637HF
15	    Prefix: 'w83637hf'
16	    Addresses scanned: ISA address retrieved from Super I/O registers
17	  * Winbond W83687THF
18	    Prefix: 'w83687thf'
19	    Addresses scanned: ISA address retrieved from Super I/O registers
20	    Datasheet: Provided by Winbond on request(http://www.winbond.com/hq/enu)
21	
22	Authors:
23	        Frodo Looijaard <frodol@dds.nl>,
24	        Philip Edelbrock <phil@netroedge.com>,
25	        Mark Studebaker <mdsxyz123@yahoo.com>,
26	        Bernhard C. Schrenk <clemy@clemy.org>
27	
28	Module Parameters
29	-----------------
30	
31	* force_i2c: int
32	  Initialize the I2C address of the sensors
33	* init: int
34	  (default is 1)
35	  Use 'init=0' to bypass initializing the chip.
36	  Try this if your computer crashes when you load the module.
37	
38	Description
39	-----------
40	
41	This driver implements support for ISA accesses *only* for
42	the Winbond W83627HF, W83627THF, W83697HF and W83637HF Super I/O chips.
43	We will refer to them collectively as Winbond chips.
44	
45	This driver supports ISA accesses, which should be more reliable
46	than i2c accesses. Also, for Tyan boards which contain both a
47	Super I/O chip and a second i2c-only Winbond chip (often a W83782D),
48	using this driver will avoid i2c address conflicts and complex
49	initialization that were required in the w83781d driver.
50	
51	If you really want i2c accesses for these Super I/O chips,
52	use the w83781d driver. However this is not the preferred method
53	now that this ISA driver has been developed.
54	
55	The w83627_HF_ uses pins 110-106 as VID0-VID4. The w83627_THF_ uses the
56	same pins as GPIO[0:4]. Technically, the w83627_THF_ does not support a
57	VID reading. However the two chips have the identical 128 pin package. So,
58	it is possible or even likely for a w83627thf to have the VID signals routed
59	to these pins despite their not being labeled for that purpose. Therefore,
60	the w83627thf driver interprets these as VID. If the VID on your board
61	doesn't work, first see doc/vid in the lm_sensors package[1]. If that still
62	doesn't help, you may just ignore the bogus VID reading with no harm done.
63	
64	For further information on this driver see the w83781d driver documentation.
65	
66	[1] http://www.lm-sensors.org/browser/lm-sensors/trunk/doc/vid
67	
68	Forcing the address
69	-------------------
70	
71	The driver used to have a module parameter named force_addr, which could
72	be used to force the base I/O address of the hardware monitoring block.
73	This was meant as a workaround for mainboards with a broken BIOS. This
74	module parameter is gone for technical reasons. If you need this feature,
75	you can obtain the same result by using the isaset tool (part of
76	lm-sensors) before loading the driver:
77	
78	# Enter the Super I/O config space
79	isaset -y -f 0x2e 0x87
80	isaset -y -f 0x2e 0x87
81	
82	# Select the hwmon logical device
83	isaset -y 0x2e 0x2f 0x07 0x0b
84	
85	# Set the base I/O address (to 0x290 in this example)
86	isaset -y 0x2e 0x2f 0x60 0x02
87	isaset -y 0x2e 0x2f 0x61 0x90
88	
89	# Exit the Super-I/O config space
90	isaset -y -f 0x2e 0xaa
91	
92	The above sequence assumes a Super-I/O config space at 0x2e/0x2f, but
93	0x4e/0x4f is also possible.
94	
95	Voltage pin mapping
96	-------------------
97	
98	Here is a summary of the voltage pin mapping for the W83627THF. This
99	can be useful to convert data provided by board manufacturers into
100	working libsensors configuration statements.
101	
102	    W83627THF		|
103	  Pin	| Name		| Register	| Sysfs attribute
104	-----------------------------------------------------
105	  100	| CPUVCORE	| 20h		| in0
106	   99	| VIN0		| 21h		| in1
107	   98	| VIN1		| 22h		| in2
108	   97	| VIN2		| 24h		| in4
109	  114	| AVCC		| 23h		| in3
110	   61	| 5VSB		| 50h (bank 5)	| in7
111	   74	| VBAT		| 51h (bank 5)	| in8
112	
113	For other supported devices, you'll have to take the hard path and
114	look up the information in the datasheet yourself (and then add it
115	to this document please.)
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