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-rw-r--r--Documentation/hwmon/dme173753
1 files changed, 37 insertions, 16 deletions
diff --git a/Documentation/hwmon/dme1737 b/Documentation/hwmon/dme1737
index b1fe00999439..001d2e70bc11 100644
--- a/Documentation/hwmon/dme1737
+++ b/Documentation/hwmon/dme1737
@@ -10,6 +10,10 @@ Supported chips:
10 Prefix: 'sch311x' 10 Prefix: 'sch311x'
11 Addresses scanned: none, address read from Super-I/O config space 11 Addresses scanned: none, address read from Super-I/O config space
12 Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf 12 Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf
13 * SMSC SCH5027
14 Prefix: 'sch5027'
15 Addresses scanned: I2C 0x2c, 0x2d, 0x2e
16 Datasheet: Provided by SMSC upon request and under NDA
13 17
14Authors: 18Authors:
15 Juerg Haefliger <juergh@gmail.com> 19 Juerg Haefliger <juergh@gmail.com>
@@ -27,33 +31,31 @@ Module Parameters
27 following boards: 31 following boards:
28 - VIA EPIA SN18000 32 - VIA EPIA SN18000
29 33
30Note that there is no need to use this parameter if the driver loads without
31complaining. The driver will say so if it is necessary.
32
33 34
34Description 35Description
35----------- 36-----------
36 37
37This driver implements support for the hardware monitoring capabilities of the 38This driver implements support for the hardware monitoring capabilities of the
38SMSC DME1737 and Asus A8000 (which are the same) and SMSC SCH311x Super-I/O 39SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, and SMSC
39chips. These chips feature monitoring of 3 temp sensors temp[1-3] (2 remote 40SCH311x Super-I/O chips. These chips feature monitoring of 3 temp sensors
40diodes and 1 internal), 7 voltages in[0-6] (6 external and 1 internal) and up 41temp[1-3] (2 remote diodes and 1 internal), 7 voltages in[0-6] (6 external and
41to 6 fan speeds fan[1-6]. Additionally, the chips implement up to 5 PWM 421 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement
42outputs pwm[1-3,5-6] for controlling fan speeds both manually and 43up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and
43automatically. 44automatically.
44 45
45For the DME1737 and A8000, fan[1-2] and pwm[1-2] are always present. Fan[3-6] 46For the DME1737, A8000 and SCH5027, fan[1-2] and pwm[1-2] are always present.
46and pwm[3,5-6] are optional features and their availability depends on the 47Fan[3-6] and pwm[3,5-6] are optional features and their availability depends on
47configuration of the chip. The driver will detect which features are present 48the configuration of the chip. The driver will detect which features are
48during initialization and create the sysfs attributes accordingly. 49present during initialization and create the sysfs attributes accordingly.
49 50
50For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and 51For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and
51pwm[5-6] don't exist. 52pwm[5-6] don't exist.
52 53
53The hardware monitoring features of the DME1737 and A8000 are only accessible 54The hardware monitoring features of the DME1737, A8000, and SCH5027 are only
54via SMBus, while the SCH311x only provides access via the ISA bus. The driver 55accessible via SMBus, while the SCH311x only provides access via the ISA bus.
55will therefore register itself as an I2C client driver if it detects a DME1737 56The driver will therefore register itself as an I2C client driver if it detects
56or A8000 and as a platform driver if it detects a SCH311x chip. 57a DME1737, A8000, or SCH5027 and as a platform driver if it detects a SCH311x
58chip.
57 59
58 60
59Voltage Monitoring 61Voltage Monitoring
@@ -64,6 +66,7 @@ scaling resistors. The values returned by the driver therefore reflect true
64millivolts and don't need scaling. The voltage inputs are mapped as follows 66millivolts and don't need scaling. The voltage inputs are mapped as follows
65(the last column indicates the input ranges): 67(the last column indicates the input ranges):
66 68
69DME1737, A8000:
67 in0: +5VTR (+5V standby) 0V - 6.64V 70 in0: +5VTR (+5V standby) 0V - 6.64V
68 in1: Vccp (processor core) 0V - 3V 71 in1: Vccp (processor core) 0V - 3V
69 in2: VCC (internal +3.3V) 0V - 4.38V 72 in2: VCC (internal +3.3V) 0V - 4.38V
@@ -72,6 +75,24 @@ millivolts and don't need scaling. The voltage inputs are mapped as follows
72 in5: VTR (+3.3V standby) 0V - 4.38V 75 in5: VTR (+3.3V standby) 0V - 4.38V
73 in6: Vbat (+3.0V) 0V - 4.38V 76 in6: Vbat (+3.0V) 0V - 4.38V
74 77
78SCH311x:
79 in0: +2.5V 0V - 6.64V
80 in1: Vccp (processor core) 0V - 2V
81 in2: VCC (internal +3.3V) 0V - 4.38V
82 in3: +5V 0V - 6.64V
83 in4: +12V 0V - 16V
84 in5: VTR (+3.3V standby) 0V - 4.38V
85 in6: Vbat (+3.0V) 0V - 4.38V
86
87SCH5027:
88 in0: +5VTR (+5V standby) 0V - 6.64V
89 in1: Vccp (processor core) 0V - 3V
90 in2: VCC (internal +3.3V) 0V - 4.38V
91 in3: V2_IN 0V - 1.5V
92 in4: V1_IN 0V - 1.5V
93 in5: VTR (+3.3V standby) 0V - 4.38V
94 in6: Vbat (+3.0V) 0V - 4.38V
95
75Each voltage input has associated min and max limits which trigger an alarm 96Each voltage input has associated min and max limits which trigger an alarm
76when crossed. 97when crossed.
77 98