if (len > 0 && len < chr_info->mtu) {
bt_gatt_char_property_t char_val;
- BT_INFO("FD io sending value changed %x %x %x %x %x %x %x %d \n", buffer[0], buffer[1], buffer[3], buffer[4], buffer[5], buffer[6], buffer[7], len);
+ BT_INFO("FD io sending value changed %x %x %x %x %x %x %x %zd \n", buffer[0], buffer[1], buffer[3], buffer[4], buffer[5], buffer[6], buffer[7], len);
memcpy(char_val.prop.uuid, chr_info->UUID, 16);