RE: struct bt_conn issue, how to include conn_internal.h

MDF — Thu, 02 Jun 2022 10:01:43 GMT

I was able to find and fix the crash, which is not related to BLE - but happens because of the (stupid) code in uart_cb().

When incoming UART data is received the coder enters the case UART_RX_RDY and then checks if the last character was LF or CR - and this code does not check for (buf->len == 0) which can happen. I also noticed that this buffer management (allocate and release) only works well if 1 char per time is inserted in the fifo. Trying to insert a whole message works once, and then the release mgmt seems to go bad.

This same sample code is used in central_uart and in peripheral_uart. Since the sample documentation suggests to use a Rxd-Txd loopback between the chip's pins, this crash is not showing up.

If ever anyone would have tested these UART samples with a real serial-UART connection to another device and a stupid user like me at the other end, the problem would show up

RE: struct bt_conn issue, how to include conn_internal.h

MDF — Tue, 31 May 2022 17:46:20 GMT

1.) I think I found a solution for the #include issue - I found a comment in ncs\v1.9.1\zephyr\subsys\bluetooth\audio\otc.c, it says

#include "../host/conn_internal.h" /* To avoid build errors on use of struct bt_conn" */

so in may case I use now this to get rid of the warnings

// this is necessary for struct bt_conn
#include <bluetooth/buf.h>
#include <../subsys/bluetooth/host/conn_internal.h>

2.) but unfortunately it wont fix the crash issue ....