#ifndef LAMP_I2C_PINS_H
#define LAMP_I2C_PINS_H
#include <stdbool.h>
/* A39 TSSOP20: pad20 PB6(AF6 SCL), pad1 PB7(AF6 SDA).
 * Other bonded GPIOs must stay analog/no-pull. No peripheral START or PE write.
 * Init rejects active I2C1 or locked group. Does not release LED reset/blank. */
bool lamp_i2c_pins_init(void);
bool lamp_i2c_pins_available(void);
#endif
