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authorJuerg Haefliger <juergh@gmail.com>2007-10-08 00:27:35 -0400
committerMark M. Hoffman <mhoffman@lightlink.com>2007-10-10 22:47:13 -0400
commite95c237d78c0dc8fc0ae1207cec87af7a37dd366 (patch)
treeb8c6a189c08918dbc5a52c26e38885f470426a9c /Documentation/hwmon/dme1737
parent62ee3e10d3ea11f50bcec8dffb46555fa16d417b (diff)
hwmon: (dme1737) Add sch311x support
This patch adds support for the SMSC SCH3112, SCH3114, and SCH3116 Super-I/O chips. These chips feature identical hardware monitoring capabilites with the expection that some of the fan inputs and pmw outputs don't exist. The hardware monitoring features of the SCH311x chips can only be accessed via the ISA bus. The driver therefore registers as a platform driver, if such a chip is detected. Signed-off-by: Juerg Haefliger <juergh at gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Diffstat (limited to 'Documentation/hwmon/dme1737')
-rw-r--r--Documentation/hwmon/dme173733
1 files changed, 23 insertions, 10 deletions
diff --git a/Documentation/hwmon/dme1737 b/Documentation/hwmon/dme1737
index 1a0f3d64ab80..8f446070e64a 100644
--- a/Documentation/hwmon/dme1737
+++ b/Documentation/hwmon/dme1737
@@ -6,6 +6,10 @@ Supported chips:
6 Prefix: 'dme1737' 6 Prefix: 'dme1737'
7 Addresses scanned: I2C 0x2c, 0x2d, 0x2e 7 Addresses scanned: I2C 0x2c, 0x2d, 0x2e
8 Datasheet: Provided by SMSC upon request and under NDA 8 Datasheet: Provided by SMSC upon request and under NDA
9 * SMSC SCH3112, SCH3114, SCH3116
10 Prefix: 'sch311x'
11 Addresses scanned: none, address read from Super-I/O config space
12 Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf
9 13
10Authors: 14Authors:
11 Juerg Haefliger <juergh@gmail.com> 15 Juerg Haefliger <juergh@gmail.com>
@@ -27,16 +31,25 @@ Description
27----------- 31-----------
28 32
29This driver implements support for the hardware monitoring capabilities of the 33This driver implements support for the hardware monitoring capabilities of the
30SMSC DME1737 and Asus A8000 (which are the same) Super-I/O chips. This chip 34SMSC DME1737 and Asus A8000 (which are the same) and SMSC SCH311x Super-I/O
31features monitoring of 3 temp sensors temp[1-3] (2 remote diodes and 1 35chips. These chips feature monitoring of 3 temp sensors temp[1-3] (2 remote
32internal), 7 voltages in[0-6] (6 external and 1 internal) and 6 fan speeds 36diodes and 1 internal), 7 voltages in[0-6] (6 external and 1 internal) and up
33fan[1-6]. Additionally, the chip implements 5 PWM outputs pwm[1-3,5-6] for 37to 6 fan speeds fan[1-6]. Additionally, the chips implement up to 5 PWM
34controlling fan speeds both manually and automatically. 38outputs pwm[1-3,5-6] for controlling fan speeds both manually and
35 39automatically.
36Fan[3-6] and pwm[3,5-6] are optional features and their availability is 40
37dependent on the configuration of the chip. The driver will detect which 41For the DME1737 and A8000, fan[1-2] and pwm[1-2] are always present. Fan[3-6]
38features are present during initialization and create the sysfs attributes 42and pwm[3,5-6] are optional features and their availability depends on the
39accordingly. 43configuration of the chip. The driver will detect which features are present
44during initialization and create the sysfs attributes accordingly.
45
46For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and
47pwm[5-6] don't exist.
48
49The hardware monitoring features of the DME1737 and A8000 are only accessible
50via SMBus, while the SCH311x only provides access via the ISA bus. The driver
51will therefore register itself as an I2C client driver if it detects a DME1737
52or A8000 and as a platform driver if it detects a SCH311x chip.
40 53
41 54
42Voltage Monitoring 55Voltage Monitoring