From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/Documentation/hwmon/emc2103 | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 kernel/Documentation/hwmon/emc2103 (limited to 'kernel/Documentation/hwmon/emc2103') diff --git a/kernel/Documentation/hwmon/emc2103 b/kernel/Documentation/hwmon/emc2103 new file mode 100644 index 000000000..a12b2c127 --- /dev/null +++ b/kernel/Documentation/hwmon/emc2103 @@ -0,0 +1,33 @@ +Kernel driver emc2103 +====================== + +Supported chips: + * SMSC EMC2103 + Addresses scanned: I2C 0x2e + Prefix: 'emc2103' + Datasheet: Not public + +Authors: + Steve Glendinning + +Description +----------- + +The Standard Microsystems Corporation (SMSC) EMC2103 chips +contain up to 4 temperature sensors and a single fan controller. + +Fan rotation speeds are reported in RPM (rotations per minute). An alarm is +triggered if the rotation speed has dropped below a programmable limit. Fan +readings can be divided by a programmable divider (1, 2, 4 or 8) to give +the readings more range or accuracy. Not all RPM values can accurately be +represented, so some rounding is done. With a divider of 1, the lowest +representable value is 480 RPM. + +This driver supports RPM based control, to use this a fan target +should be written to fan1_target and pwm1_enable should be set to 3. + +The 2103-2 and 2103-4 variants have a third temperature sensor, which can +be connected to two anti-parallel diodes. These values can be read +as temp3 and temp4. If only one diode is attached to this channel, temp4 +will show as "fault". The module parameter "apd=0" can be used to suppress +this 4th channel when anti-parallel diodes are not fitted. -- cgit 1.2.3-korg