Yasushi SHOJI

@uLipe, would you mind taking a look?

Should we back port this to v3.5?

@hartkopp ping

`last_used` is used in CAN. Because `timestamp_rx` is sharing storage area with it, it gets `0`. https://github.com/libcsp/libcsp/blob/develop/src/interfaces/csp_if_can_pbuf.c#L68-L78 ```c void csp_can_pbuf_cleanup(csp_can_interface_data_t * ifdata, int * task_woken) { uint32_t now = (task_woken)...

What was the motivation to use union on these `struct`s in `struct csp_packet_s`? To save some memory?

`csp_iface_t` (or `struct csp_iface_s`) is an open struct, meaning we can access members of it any time. Do we really need a function parameter for `node_id`? We can already do...

I've decided to generate with AI but I guess I'm not a prompt engineer :grin:   

Nice. Love that.

That's something not my job. I'm assinging @johandc for this. :grin: