I'm trying to store (read&write( a struct using LittleFS on ESP8266.

Appreciate assistance

struct oper_string
{
  bool state;     /* On or Off */
  uint8_t step;   /* Step, in case of PWM */
  uint8_t reason; /* What triggered the button */
  time_t ontime;  /* Start Clk */
  time_t offtime; /* Off Clk */
};