- I am using two USB-To_Can-adapters (can0, can1) physically connected
- I am using linux
I do
- cansend can0 20000001#00

1) candump can0,0:0,#FFFFFFFF -> can0 20000001 [1] 00 ERRORFRAME

2) candump can1,0:0,#FFFFFFFF -> can1 001 [1] 00

-> The error Flag is missing!

- I have set up the interfaces with
1) ip link set can0 down
2) ip link set can0 up type can bitrate 5000000
3) ifconfig can0 up


- Using own C++ Code I also missing the error flags
(using soc = socket(PF_CAN, SOCK_RAW, CAN_RAW);
can_err_mask_t err_mask = CAN_ERR_MASK;
setsockopt(soc, SOL_CAN_RAW, CAN_RAW_ERR_FILTER,&err_mask, sizeof(err_mask));)

My question:
Error error flag only generated when detection bus errors and not transmitted or received when setting the corresponding bit of the Can-Di (bit30)?
Is there a way via socket can options or by firmware settings to enable transmitted or received error flags inside the can id.