| .. 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. |
