1 Kernel driver max6650
2 =====================
3
4 Supported chips:
5
6 * Maxim MAX6650
7
8 Prefix: 'max6650'
9
10 Addresses scanned: none
11
12 Datasheet: http://pdfserv.maxim-ic.com/en/
13
14 * Maxim MAX6651
15
16 Prefix: 'max6651'
17
18 Addresses scanned: none
19
20 Datasheet: http://pdfserv.maxim-ic.com/en/
21
22 Authors:
23 - Hans J. Koch <hjk@hansjkoch.de>
24 - John Morris <john.morris@spirentcom.com>
25 - Claus Gindhart <claus.gindhart@kontron.co
26
27 Description
28 -----------
29
30 This driver implements support for the Maxim M
31
32 The 2 devices are very similar, but the MAX655
33 set, e.g. only one fan-input, instead of 4 for
34
35 The driver is not able to distinguish between
36
37 The driver provides the following sensor acces
38
39 =============== ======= ======================
40 fan1_input ro fan tachometer speed i
41 fan2_input ro "
42 fan3_input ro "
43 fan4_input ro "
44 fan1_target rw desired fan speed in R
45 pwm1_enable rw regulator mode, 0=full
46 3=off
47 pwm1 rw relative speed (0-255)
48 Used in open loop mode
49 fan1_div rw sets the speed range t
50 values are 1, 2, 4, an
51 faster fans.
52 =============== ======= ======================
53
54 Usage notes
55 -----------
56
57 This driver does not auto-detect devices. You
58 devices explicitly. Please see Documentation/i
59 details.
60
61 Module parameters
62 -----------------
63
64 If your board has a BIOS that initializes the
65 simply load your module without parameters. It
66 registers then. If your board BIOS doesn't ini
67 different settings, you can set the following
68
69 voltage_12V: 5=5V fan, 12=12V fan, 0=don't cha
70 prescaler: Possible values are 1,2,4,8,16, or
71 clock: The clock frequency in Hz of the chip t
72
73 Please have a look at the MAX6650/6651 data sh
74 understand the meaning of these parameters bef
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