1.. SPDX-License-Identifier: GPL-2.0-or-later
 2
 3Kernel driver POWERZ
 4====================
 5
 6Supported chips:
 7
 8  * ChargerLAB POWER-Z KM003C
 9
10    Prefix: 'powerz'
11
12    Addresses scanned: -
13
14Author:
15
16  - Thomas Weißschuh <linux@weissschuh.net>
17
18Description
19-----------
20
21This driver implements support for the ChargerLAB POWER-Z USB-C power testing
22family.
23
24The device communicates with the custom protocol over USB.
25
26The channel labels exposed via hwmon match the labels used by the on-device
27display and the official POWER-Z PC software.
28
29As current can flow in both directions through the tester the sign of the
30channel "curr1_input" (label "IBUS") indicates the direction.