hwmon: New PC87427 hardware monitoring driver

This is a new hardware monitoring driver for the National Semiconductor
PC87427 Super-I/O chip. It only supports fan speed monitoring for now,
while the chip can do much more.

Thanks to Amir Habibi at Candelis for setting up a test system, and to
Michael Kress for testing several iterations of this driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 39ab2fc128cf..e379ac41c09c 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -353,6 +353,19 @@ config SENSORS_PC87360
           This driver can also be built as a module.  If so, the module
           will be called pc87360.
 
+config SENSORS_PC87427
+        tristate "National Semiconductor PC87427"
+        depends on HWMON && EXPERIMENTAL
+        help
+          If you say yes here you get access to the hardware monitoring
+          functions of the National Semiconductor PC87427 Super-I/O chip.
+          The chip has two distinct logical devices, one for fan speed
+          monitoring and control, and one for voltage and temperature
+          monitoring. Only fan speed monitoring is supported right now.
+
+          This driver can also be built as a module.  If so, the module
+          will be called pc87427.
+
 config SENSORS_SIS5595
         tristate "Silicon Integrated Systems Corp. SiS5595"
         depends on HWMON && I2C && PCI && EXPERIMENTAL