dev/usb/usb_dev.c

1144 usb_filter_detach(struct knote *kn)
1146 	struct usb_fifo *f = kn->kn_hook;
1147 	knlist_remove(&f->selinfo.si_note, kn, 0);
1151 usb_filter_write(struct knote *kn, long hint)
1159 	f = kn->kn_hook;
1192 usb_filter_read(struct knote *kn, long hint)
1200 	f = kn->kn_hook;
1251 usb_kqfilter(struct cdev* dev, struct knote *kn)
1268 	switch (kn->kn_filter) {
1272 			kn->kn_fop = &usb_filtops_write;
1279 			kn->kn_fop = &usb_filtops_read;
1289 		kn->kn_hook = f;
1291 		knlist_add(&f->selinfo.si_note, kn, 1);