192 	struct uc_data *uc = dev->data;  in rx_thread()  local
209 		if (!uc_ready(uc->fd)) {  in rx_thread()
216 		len = read(uc->fd, frame + frame_size, sizeof(frame) - frame_size);  in rx_thread()
224 			close(uc->fd);  in rx_thread()
225 			uc->fd = -1;  in rx_thread()
282 			uc->recv(dev, buf);  in rx_thread()
291 	struct uc_data *uc = dev->data;  in uc_send()  local
295 	if (uc->fd < 0) {  in uc_send()
318 	if (write(uc->fd, buf->data, buf->len) < 0) {  in uc_send()
380 	struct uc_data *uc = dev->data;  in uc_open()  local
388 	uc->fd = user_chan_open();  in uc_open()
389 	if (uc->fd < 0) {  in uc_open()
390 		return uc->fd;  in uc_open()
393 	uc->recv = recv;  in uc_open()
395 	LOG_DBG("User Channel opened as fd %d", uc->fd);  in uc_open()