Symbol: USBPF_FRAMEFLAG_READ
sys/dev/usb/usb_pf.c
338
uf->flags |= htole32(USBPF_FRAMEFLAG_READ);
usr.sbin/usbdump/usbdump.c
538
(flags & USBPF_FRAMEFLAG_READ) ? "READ" : "WRITE",