STRUCT DM9051_RXHDR(9)

💖 NAME 💖

okay so bestie, this is struct dm9051_rxhdr(9) from the Kernel API Manual — the rx packet data header, and yes she's iconic. 🎀

✨ SYNOPSIS ✨

the whole struct, served fresh:

struct dm9051_rxhdr {
    u8 headbyte;
    u8 status;
    __le16 rxlen;
};

🎀 Members 🎀

• headbyte — the lead byte; when it's equal to 0x01, it notifies a valid packet. 💅
• status — the status bits for the received packet. ✨
• rxlen — the packet length. 🍓

🌈 Description 🌈

so the Rx packed — the thing that gets entered into the FIFO memory — starts with these four bytes, which is the Rx header. after that comes the ethernet packet data, and it ends with an appended 4-byte CRC data. both the Rx packet and the CRC data are for check purpose, and finally they're dropped by this driver. no cap, that's the whole flow. 💖

🔎 SEE ALSO 🔎

• Kernel file ./drivers/net/ethernet/davicom/dm9051.c — plus struct rx_ctl_mach(9), struct dm9051_rxctrl(9), and struct board_info(9). 🦋

and that's the tea: source/version ./drivers/net/ethernet/davicom, dated October 2026, page struct dm9051_rxhdr(9). mwah 💖 byeee bestie 🫶