i2cspi_read_register
int i2cspi_read_register(int, bool, int, uint8_t, uint8_t, uint8_t *);
EXTERN int i2cspi_read_register(int, bool, int, uint8_t, uint8_t, uint8_t *);
func_block.func_phy_read = &i2cspi_read_register;
error = i2cspi_read_register(fd,debug,module,reg,reg_e,®ister_shadow[reg]);