>> On Dec 8, 2017, at 6:34 PM, Mario Limonciello <mario.limonciello@xxxxxxxx> wrote: >> >> It's possible for the same GUID to show up on as system twice. >> This means using solely the GUID for identify the file will not >> be sufficient. > >Isn't the file already in a per-bus directory? Yep, but the symlink created in /sys/bus/wmi/devices isn't. That's where the kernel complains about duplicate sysfs attributes. It's not exactly a pretty path I submitted, but it does avoid those collisions. Example (with this in place from /sys/bus/wmi/devices): lrwxrwxrwx 1 root root 0 Dec 8 21:39 PNP0C14:04-70FE8229-D03B-4214-A1C6-1F884B1A892A -> ../../../devices/platform/PNP0C14:04/wmi_bus/wmi_bus-PNP0C14:04/PNP0C14:04-70FE8229-D03B-4214-A1C6-1F884B1A892A
