usb4_switch_read_uid
usb4_switch_read_uid(sw, &sw->uid);
usb4_switch_read_uid(sw, &sw->uid);
ret = usb4_switch_read_uid(sw, &sw->uid);
err = usb4_switch_read_uid(sw, &uid);
int usb4_switch_read_uid(struct tb_switch *sw, u64 *uid);