#ifndef I2C_BUS_H
#define I2C_BUS_H

#include "driver/i2c_master.h"
#include "esp_err.h"

/*
 * Shared I2C bus. On the CrowPanel Advance both the STC8H1K28 board
 * controller (0x30) and the GT911 touch controller (0x5D) live on it, so a
 * single owner avoids two drivers trying to install the same port.
 */
esp_err_t i2c_bus_init(void);

i2c_master_bus_handle_t i2c_bus_get(void);

/* Logs every responding address. Diagnostics for bring-up. */
void i2c_bus_scan(const char *tag);

#endif