qhfzh

Results 2 issues of qhfzh

I used MinGW-w64 to compile under windows 10, and the /subsystem:windows error occurred during the compilation process. Only by changing the /subsystem:windows in the Link.txt file generated in the middle...

[libsocketcan_changes.patch](https://github.com/user-attachments/files/24379713/libsocketcan_changes.patch) The api for canfd is missing to get the data segment bittiming. There is also can_set_canfd_bitrates_samplepoint, which encapsulates can_set_canfd_bittiming. The patch is attached, please accept it.