pwinfo

Show information from PowerWalker UPS devices that support HID.

Basic VI 850 SB currently supported, can work with similar models.

No warranty, use it at your own risk.

Building

Dependencies

• make
• libhidapi-dev

Compile

$ cd pwinfo
$ make

Usage

Usage:
  pwinfo [OPTION]

Options:
  -l, --list             List all HID devices.
  -i, --vpid VID:PID     Use Vendor ID and Product ID to get info from device.
  -p, --path PATH        Use PATH (see --list option) to get info from device.
  -d, --description      Show the description of usage names.
  -h, --help             Show help.

Example

Get the Vendor ID and Product ID of the UPS device:

$ lsusb
or
$ ./pwinfo --list

Get information from the device:

# ./pwinfo --vpid 0764:0601

Running without sudo

This program requires root privileges to open the device.

You can make an udev rule to avoid to use sudo, example:

• Create /etc/udev/rules.d/99-ups.rules and add this line:

SUBSYSTEM=="usb", ATTRS{idVendor}=="0764", ATTRS{idProduct}=="0601", MODE="0666"

• Then reload rules:

# udevadm control --reload-rules
# udevadm trigger

If it does not work, disconnect and reconnect the device.