43 	const struct device *clock_dev;
62 static int serial_esp32_usb_poll_in(const struct device *dev, unsigned char *p_char)  in serial_esp32_usb_poll_in()
73 static void serial_esp32_usb_poll_out(const struct device *dev, unsigned char c)  in serial_esp32_usb_poll_out()
91 static int serial_esp32_usb_err_check(const struct device *dev)  in serial_esp32_usb_err_check()
98 static int serial_esp32_usb_init(const struct device *dev)  in serial_esp32_usb_init()
124 static int serial_esp32_usb_fifo_fill(const struct device *dev, const uint8_t *tx_data, int len)  in serial_esp32_usb_fifo_fill()
135 static int serial_esp32_usb_fifo_read(const struct device *dev, uint8_t *rx_data, const int len)  in serial_esp32_usb_fifo_read()
142 static void serial_esp32_usb_irq_tx_enable(const struct device *dev)  in serial_esp32_usb_irq_tx_enable()
156 static void serial_esp32_usb_irq_tx_disable(const struct device *dev)  in serial_esp32_usb_irq_tx_disable()
163 static int serial_esp32_usb_irq_tx_ready(const struct device *dev)  in serial_esp32_usb_irq_tx_ready()
171 static void serial_esp32_usb_irq_rx_enable(const struct device *dev)  in serial_esp32_usb_irq_rx_enable()
179 static void serial_esp32_usb_irq_rx_disable(const struct device *dev)  in serial_esp32_usb_irq_rx_disable()
186 static int serial_esp32_usb_irq_tx_complete(const struct device *dev)  in serial_esp32_usb_irq_tx_complete()
193 static int serial_esp32_usb_irq_rx_ready(const struct device *dev)  in serial_esp32_usb_irq_rx_ready()
200 static void serial_esp32_usb_irq_err_enable(const struct device *dev)  in serial_esp32_usb_irq_err_enable()
205 static void serial_esp32_usb_irq_err_disable(const struct device *dev)  in serial_esp32_usb_irq_err_disable()
210 static int serial_esp32_usb_irq_is_pending(const struct device *dev)  in serial_esp32_usb_irq_is_pending()
215 static int serial_esp32_usb_irq_update(const struct device *dev)  in serial_esp32_usb_irq_update()
225 static void serial_esp32_usb_irq_callback_set(const struct device *dev,  in serial_esp32_usb_irq_callback_set()
236 	const struct device *dev = (const struct device *)arg;  in serial_esp32_usb_isr()