STRUCT CANFD_FRAME(9)

🌸 NAME 🌸

okay so bestie, this is struct canfd_frame(9) from the Kernel API Manual — the CAN flexible data rate frame structure. like, the whole vibe is CAN FD frame energy, and we are not skipping a single field 💅✨

🦋 SYNOPSIS 🦋

struct canfd_frame {
    canid_t can_id;
    __u8 len;
    __u8 flags;
    __u8 __res0;
    __u8 __res1;
    __u8 data[CANFD_MAX_DLEN];
 };

🎀 Members 🎀

• can_id — the CAN ID of the frame plus the CAN_*_FLAG flags, see the canid_t definition. iconic little combo, honestly 👑
• len — frame payload length in byte (0 .. CANFD_MAX_DLEN). yes, that exact range, no cap 💖
• flags — extra flags for CAN FD. little extra seasoning 🌈
• __res0 — reserved / padding 🫶
• __res1 — reserved / padding 🫶
• data — the CAN FD frame payload, up to CANFD_MAX_DLEN byte. the main character payload, periodt 🔥

🔗 SEE ALSO 🔗

Kernel file ./include/uapi/linux/can.h struct can_frame(9), struct canxl_frame(9), struct sockaddr_can(9), struct can_filter(9)

mwah 💋 this little cutie lives in ./include/uapi/linux, and the date on the vibe is October 2026 — slay, that’s the whole sign-off, bestie 🎀✨