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| author | Thomas Weißschuh <linux@weissschuh.net> | 2023-09-02 10:47:01 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2023-10-27 17:27:23 +0300 |
| commit | 4381a36abdf1c5c0323c1c51f869dc000115eb20 (patch) | |
| tree | 450a3c877d7106ecbaef6c457b8409b006ec79a6 /Documentation/hwmon | |
| parent | 9da2901c47332b030ea4d2a2302bc7c0b83fc67c (diff) | |
| download | linux-4381a36abdf1c5c0323c1c51f869dc000115eb20.tar.xz | |
hwmon: add POWER-Z driver
POWER-Z is a series of devices to monitor power characteristics of
USB-C connections and display those on a on-device display.
Some of the devices, notably KM002C and KM003C, contain an additional
port which exposes the measurements via USB.
This is a driver for this monitor port.
It was developed and tested with the KM003C.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230902-powerz-v4-1-7ec2c1440687@weissschuh.net
[groeck:
Release urb after hwmon registration error;
Move priv->status initialization to correct place before reinit_completion
]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/powerz.rst | 30 |
2 files changed, 31 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 88dadea85cfc..10a54644557d 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -178,6 +178,7 @@ Hardware Monitoring Kernel Drivers peci-cputemp peci-dimmtemp pmbus + powerz powr1220 pxe1610 pwm-fan diff --git a/Documentation/hwmon/powerz.rst b/Documentation/hwmon/powerz.rst new file mode 100644 index 000000000000..317084e0b76b --- /dev/null +++ b/Documentation/hwmon/powerz.rst @@ -0,0 +1,30 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver POWERZ +==================== + +Supported chips: + + * ChargerLAB POWER-Z KM003C + + Prefix: 'powerz' + + Addresses scanned: - + +Author: + + - Thomas Weißschuh <linux@weissschuh.net> + +Description +----------- + +This driver implements support for the ChargerLAB POWER-Z USB-C power testing +family. + +The device communicates with the custom protocol over USB. + +The channel labels exposed via hwmon match the labels used by the on-device +display and the official POWER-Z PC software. + +As current can flow in both directions through the tester the sign of the +channel "curr1_input" (label "IBUS") indicates the direction. |