1 Kernel driver sis5595
2 =====================
3
4 Supported chips:
5
6 * Silicon Integrated Systems Corp. SiS5595 S
7
8 Prefix: 'sis5595'
9
10 Addresses scanned: ISA in PCI-space encode
11
12 Datasheet: Publicly available at the Silic
13
14
15
16 Authors:
17
18 - Kyösti Mälkki <kmalkki@cc.hut.fi>,
19 - Mark D. Studebaker <mdsxyz123@yahoo.com
20 - Aurelien Jarno <aurelien@aurel32.net> 2
21
22 SiS southbridge has a LM78-like chip integr
23 This driver is a customized copy of lm78.c
24
25 Supports following revisions:
26
27 =============== =============== =======
28 Version PCI ID PCI Rev
29 =============== =============== =======
30 1 1039/0008 AF or l
31 2 1039/0008 B0 or g
32 =============== =============== =======
33
34 Note: these chips contain a 0008 device whi
35 5595. We recognize these by the presen
36 "blacklist" PCI ID and refuse to load.
37
38 =================== =============== =======
39 NOT SUPPORTED PCI ID BLACKLI
40 =================== =============== =======
41 540 0008 0540
42 550 0008 0550
43 5513 0008 5511
44 5581 0008 5597
45 5582 0008 5597
46 5597 0008 5597
47 630 0008 0630
48 645 0008 0645
49 730 0008 0730
50 735 0008 0735
51 =================== =============== =======
52
53
54 Module Parameters
55 -----------------
56
57 ======================= ======================
58 force_addr=0xaddr Set the I/O base addre
59 that don't set the add
60 PCI force; the device
61 Don't use this unless
62 base address is not se
63
64 Example: 'modprobe sis
65 ======================= ======================
66
67
68 Description
69 -----------
70
71 The SiS5595 southbridge has integrated hardwar
72 has an I2C bus, but this driver only supports
73 I2C bus driver see i2c-sis5595.
74
75 The SiS5595 implements zero or one temperature
76 sensors, four or five voltage sensors, and ala
77
78 On the first version of the chip, there are fo
79 temperature sensor.
80
81 On the second version of the chip, the tempera
82 fifth voltage sensor (in4) share a pin which i
83 through the driver. Sorry. The driver senses t
84 which was hopefully set by the BIOS.
85
86 Temperatures are measured in degrees Celsius.
87 when the max is crossed; it is also triggered
88 value. Measurements are guaranteed between -55
89 resolution of 1 degree.
90
91 Fan rotation speeds are reported in RPM (rotat
92 triggered if the rotation speed has dropped be
93 readings can be divided by a programmable divi
94 the readings more range or accuracy. Not all R
95 represented, so some rounding is done. With a
96 representable value is around 2600 RPM.
97
98 Voltage sensors (also known as IN sensors) rep
99 alarm is triggered if the voltage has crossed
100 maximum limit. Note that minimum in this case
101 zero'; this is important for negative voltage
102 inputs can measure voltages between 0 and 4.08
103 0.016 volt.
104
105 In addition to the alarms described above, the
106 triggered when an external chip has crossed it
107 connected to some LM75-like chip; if at least
108 bit gets set.
109
110 If an alarm triggers, it will remain triggered
111 is read at least once. This means that the cau
112 have disappeared! Note that in the current imp
113 registers are read whenever any data is read (
114 seconds since the last update). This means tha
115 once-only alarms.
116
117 The SiS5595 only updates its values each 1.5 s
118 will do no harm, but will return 'old' values.
119
120 Problems
121 --------
122 Some chips refuse to be enabled. We don't know
123 The driver will recognize this and print a mes
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.