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/ina209 | 93 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 kernel/Documentation/hwmon/ina209 (limited to 'kernel/Documentation/hwmon/ina209') diff --git a/kernel/Documentation/hwmon/ina209 b/kernel/Documentation/hwmon/ina209 new file mode 100644 index 000000000..672501de4 --- /dev/null +++ b/kernel/Documentation/hwmon/ina209 @@ -0,0 +1,93 @@ +Kernel driver ina209 +===================== + +Supported chips: + * Burr-Brown / Texas Instruments INA209 + Prefix: 'ina209' + Addresses scanned: - + Datasheet: + http://www.ti.com/lit/gpn/ina209 + +Author: Paul Hays +Author: Ira W. Snyder +Author: Guenter Roeck + + +Description +----------- + +The TI / Burr-Brown INA209 monitors voltage, current, and power on the high side +of a D.C. power supply. It can perform measurements and calculations in the +background to supply readings at any time. It includes a programmable +calibration multiplier to scale the displayed current and power values. + + +Sysfs entries +------------- + +The INA209 chip is highly configurable both via hardwiring and via +the I2C bus. See the datasheet for details. + +This tries to expose most monitoring features of the hardware via +sysfs. It does not support every feature of this chip. + + +in0_input shunt voltage (mV) +in0_input_highest shunt voltage historical maximum reading (mV) +in0_input_lowest shunt voltage historical minimum reading (mV) +in0_reset_history reset shunt voltage history +in0_max shunt voltage max alarm limit (mV) +in0_min shunt voltage min alarm limit (mV) +in0_crit_max shunt voltage crit max alarm limit (mV) +in0_crit_min shunt voltage crit min alarm limit (mV) +in0_max_alarm shunt voltage max alarm limit exceeded +in0_min_alarm shunt voltage min alarm limit exceeded +in0_crit_max_alarm shunt voltage crit max alarm limit exceeded +in0_crit_min_alarm shunt voltage crit min alarm limit exceeded + +in1_input bus voltage (mV) +in1_input_highest bus voltage historical maximum reading (mV) +in1_input_lowest bus voltage historical minimum reading (mV) +in1_reset_history reset bus voltage history +in1_max bus voltage max alarm limit (mV) +in1_min bus voltage min alarm limit (mV) +in1_crit_max bus voltage crit max alarm limit (mV) +in1_crit_min bus voltage crit min alarm limit (mV) +in1_max_alarm bus voltage max alarm limit exceeded +in1_min_alarm bus voltage min alarm limit exceeded +in1_crit_max_alarm bus voltage crit max alarm limit exceeded +in1_crit_min_alarm bus voltage crit min alarm limit exceeded + +power1_input power measurement (uW) +power1_input_highest power historical maximum reading (uW) +power1_reset_history reset power history +power1_max power max alarm limit (uW) +power1_crit power crit alarm limit (uW) +power1_max_alarm power max alarm limit exceeded +power1_crit_alarm power crit alarm limit exceeded + +curr1_input current measurement (mA) + +update_interval data conversion time; affects number of samples used + to average results for shunt and bus voltages. + +General Remarks +--------------- + +The power and current registers in this chip require that the calibration +register is programmed correctly before they are used. Normally this is expected +to be done in the BIOS. In the absence of BIOS programming, the shunt resistor +voltage can be provided using platform data. The driver uses platform data from +the ina2xx driver for this purpose. If calibration register data is not provided +via platform data, the driver checks if the calibration register has been +programmed (ie has a value not equal to zero). If so, this value is retained. +Otherwise, a default value reflecting a shunt resistor value of 10 mOhm is +programmed into the calibration register. + + +Output Pins +----------- + +Output pin programming is a board feature which depends on the BIOS. It is +outside the scope of a hardware monitoring driver to enable or disable output +pins. -- cgit 1.2.3-korg