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| author | Mark Brown <broonie@kernel.org> | 2020-12-28 14:16:53 +0000 |
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| committer | Mark Brown <broonie@kernel.org> | 2020-12-28 14:16:53 +0000 |
| commit | f81325a05e9317f09a2e4ec57a52e4e49eb42b54 (patch) | |
| tree | a5a91589c9ef8e212f2899f1462cfb5c3f0130ef /Documentation/hwmon/ltc2992.rst | |
| parent | 671ee4db952449acde126965bf76817a3159040d (diff) | |
| parent | 5c8fe583cce542aa0b84adc939ce85293de36e5e (diff) | |
| download | linux-f81325a05e9317f09a2e4ec57a52e4e49eb42b54.tar.bz2 | |
Merge tag 'v5.11-rc1' into asoc-5.11
Linux 5.11-rc1
Diffstat (limited to 'Documentation/hwmon/ltc2992.rst')
| -rw-r--r-- | Documentation/hwmon/ltc2992.rst | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/Documentation/hwmon/ltc2992.rst b/Documentation/hwmon/ltc2992.rst new file mode 100644 index 000000000000..46aa1aa84a1a --- /dev/null +++ b/Documentation/hwmon/ltc2992.rst @@ -0,0 +1,56 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver ltc2992 +===================== + +Supported chips: + * Linear Technology LTC2992 + Prefix: 'ltc2992' + Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ltc2992.pdf + +Author: Alexandru Tachici <alexandru.tachici@analog.com> + + +Description +----------- + +This driver supports hardware monitoring for Linear Technology LTC2992 power monitor. + +LTC2992 is a rail-to-rail system monitor that measures current, +voltage, and power of two supplies. + +Two ADCs simultaneously measure each supply’s current. A third ADC monitors +the input voltages and four auxiliary external voltages. + + +Sysfs entries +------------- + +The following attributes are supported. Limits are read-write, +all other attributes are read-only. + +in_reset_history Reset all highest/lowest values. + +inX_input Measured voltage. +inX_lowest Minimum measured voltage. +inX_highest Maximum measured voltage. +inX_min Minimum voltage allowed. +inX_max Maximum voltage allowed. +inX_min_alarm An undervoltage occurred. Cleared on read. +inX_max_alarm An overvoltage occurred. Cleared on read. + +currX_input Measured current. +currX_lowest Minimum measured current. +currX_highest Maximum measured current. +currX_min Minimum current allowed. +currX_max Maximum current allowed. +currX_min_alarm An undercurrent occurred. Cleared on read. +currX_max_alarm An overcurrent occurred. Cleared on read. + +powerX_input Measured power. +powerX_input_lowest Minimum measured voltage. +powerX_input_highest Maximum measured voltage. +powerX_min Minimum power. +powerX_max Maximum power. +powerX_min_alarm An underpower occurred. Cleared on read. +powerX_max_alarm An overpower occurred. Cleared on read. |