Hi, I am trying to get some kind of notification when the host ejects a f_mass_storage disk. When it happens, and the lun is removable, then the config /sys/kernel/config/usb_gadget/*/functions/*/lun.*/file is cleared. I understand that sysfs files can not be monitored with inotify, but some might be with select/poll/epoll. But this is a configfs. I know nothing works for me. I don't know if this is a bug or expected. Any insight? Thanks! Nuno