1 Kernel driver amc6821
2 =====================
3
4 Supported chips:
5
6 Texas Instruments AMC6821
7
8 Prefix: 'amc6821'
9
10 Addresses scanned: 0x18, 0x19, 0x1a, 0
11
12 Datasheet: http://focus.ti.com/docs/pr
13
14 Authors:
15 Tomaz Mertelj <tomaz.mertelj@guest.arne
16
17
18 Description
19 -----------
20
21 This driver implements support for the Texas I
22 The chip has one on-chip and one remote temper
23 regulator.
24 The pwm can be controlled either from software
25
26 The driver provides the following sensor acces
27
28 ======================= == ==============
29 temp1_input ro on-chip temper
30 temp1_min rw "
31 temp1_max rw "
32 temp1_crit rw "
33 temp1_min_alarm ro "
34 temp1_max_alarm ro "
35 temp1_crit_alarm ro "
36
37 temp2_input ro remote tempera
38 temp2_min rw "
39 temp2_max rw "
40 temp2_crit rw "
41 temp2_min_alarm ro "
42 temp2_max_alarm ro "
43 temp2_crit_alarm ro "
44 temp2_fault ro "
45
46 fan1_input ro tachometer spe
47 fan1_min rw "
48 fan1_max rw "
49 fan1_fault ro "
50 fan1_pulses rw Pulses per rev
51 fan1_target rw Target fan spe
52 mode 4.
53
54 pwm1 rw pwm1
55 pwm1_enable rw regulator mode
56 by remote temp
57 combination of
58 remote-sensor
59 4=fan controll
60 fan1_target at
61 pwm1_mode rw Fan duty contr
62 pwm1_auto_channels_temp ro 1 if pwm_enabl
63 pwm1_auto_point1_pwm ro Hardwired to 0
64 temperature ch
65 pwm1_auto_point2_pwm rw This value is
66 channels.
67 pwm1_auto_point3_pwm rw Hardwired to 2
68 temperature ch
69
70 temp1_auto_point1_temp ro Hardwired to t
71 which is rw. B
72 temp1_auto_point2_temp rw The low-temper
73 range. Below t
74 pwm1 = pwm1_au
75 0 degree C to
76 4 degree C. Re
77 the actual val
78 temp1_auto_point3_temp rw Above this tem
79 speed. It can
80 It can only ha
81 which depend o
82 pwm1_auto_poin
83 writing to get
84
85 temp2_auto_point1_temp rw Must be betwee
86 it defines the
87 Below this tem
88 the closed loo
89 temp2_auto_point2_temp rw The low-temper
90 range. Below t
91 pwm1 = pwm1_au
92 0 degree C to
93 of 4 degree C.
94
95 temp2_auto_point3_temp rw Above this tem
96 speed. It can
97 values which d
98 and pwm1_auto_
99 writing to get
100 ======================= == ==============
101
102
103 Module parameters
104 -----------------
105
106 If your board has a BIOS that initializes the
107 load the module with: init=0.
108
109 If your board BIOS doesn't initialize the chip
110 different settings, you can set the following
111
112 - init=1,
113 - pwminv: 0 default pwm output, 1 inverts pwm
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