[Nut-upsuser] NUT stopped working after an upgrade

[Charles Lepple]

On Nov 9, 2024, at 8:09 PM, Tim Dawson <tadawson at tpcsvc.com> wrote:
> 
> Check /dev/hidraw6, as noted in your dmesg output (and any other *hid* devices under /dev). User nut has almost zero privs to devices unless a udev rule changes the perms on the dev for nut . . .

I admit I am not fully tracking the latest NUT developments, but I don't think the current drivers use /dev/hidraw*, especially when the drivers mention libusb. (Once the libusb-based drivers start, they should detach the kernel's HID drivers such that the corresponding /dev/hidraw* device disappears.)

You are correct that the udev rules need to change permissions on one of the UPS /dev nodes, though.

From Bill's lsusb output:

[root at mythtv ups]# lsusb
...
Bus 001 Device 004: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS

The libusb path for this UPS would typically be /dev/bus/usb/001/004

-- 
Charles Lepple
clepple at gmail


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