5 * Winbond W83627HF (ISA accesses ONLY)
7 Addresses scanned: ISA address retrieved from Super I/O registers
8 Datasheet: http://www.winbond.com/PDF/sheet/w83627hf.pdf
11 Addresses scanned: ISA address retrieved from Super I/O registers
12 Datasheet: http://www.winbond.com/PDF/sheet/w83627thf.pdf
15 Addresses scanned: ISA address retrieved from Super I/O registers
16 Datasheet: http://www.winbond.com/PDF/sheet/697hf.pdf
19 Addresses scanned: ISA address retrieved from Super I/O registers
20 Datasheet: http://www.winbond.com/PDF/sheet/w83637hf.pdf
23 Addresses scanned: ISA address retrieved from Super I/O registers
24 Datasheet: Provided by Winbond on request
27 Frodo Looijaard <frodol@dds.nl>,
28 Philip Edelbrock <phil@netroedge.com>,
29 Mark Studebaker <mdsxyz123@yahoo.com>,
30 Bernhard C. Schrenk <clemy@clemy.org>
36 Initialize the I2C address of the sensors
39 Use 'init=0' to bypass initializing the chip.
40 Try this if your computer crashes when you load the module.
45 This driver implements support for ISA accesses *only* for
46 the Winbond W83627HF, W83627THF, W83697HF and W83637HF Super I/O chips.
47 We will refer to them collectively as Winbond chips.
49 This driver supports ISA accesses, which should be more reliable
50 than i2c accesses. Also, for Tyan boards which contain both a
51 Super I/O chip and a second i2c-only Winbond chip (often a W83782D),
52 using this driver will avoid i2c address conflicts and complex
53 initialization that were required in the w83781d driver.
55 If you really want i2c accesses for these Super I/O chips,
56 use the w83781d driver. However this is not the preferred method
57 now that this ISA driver has been developed.
59 The w83627_HF_ uses pins 110-106 as VID0-VID4. The w83627_THF_ uses the
60 same pins as GPIO[0:4]. Technically, the w83627_THF_ does not support a
61 VID reading. However the two chips have the identical 128 pin package. So,
62 it is possible or even likely for a w83627thf to have the VID signals routed
63 to these pins despite their not being labeled for that purpose. Therefore,
64 the w83627thf driver interprets these as VID. If the VID on your board
65 doesn't work, first see doc/vid in the lm_sensors package[1]. If that still
66 doesn't help, you may just ignore the bogus VID reading with no harm done.
68 For further information on this driver see the w83781d driver documentation.
70 [1] http://www.lm-sensors.org/browser/lm-sensors/trunk/doc/vid
75 The driver used to have a module parameter named force_addr, which could
76 be used to force the base I/O address of the hardware monitoring block.
77 This was meant as a workaround for mainboards with a broken BIOS. This
78 module parameter is gone for technical reasons. If you need this feature,
79 you can obtain the same result by using the isaset tool (part of
80 lm-sensors) before loading the driver:
82 # Enter the Super I/O config space
83 isaset -y -f 0x2e 0x87
84 isaset -y -f 0x2e 0x87
86 # Select the hwmon logical device
87 isaset -y 0x2e 0x2f 0x07 0x0b
89 # Set the base I/O address (to 0x290 in this example)
90 isaset -y 0x2e 0x2f 0x60 0x02
91 isaset -y 0x2e 0x2f 0x61 0x90
93 # Exit the Super-I/O config space
94 isaset -y -f 0x2e 0xaa
96 The above sequence assumes a Super-I/O config space at 0x2e/0x2f, but
97 0x4e/0x4f is also possible.