STRUCT KS8851_NET_PAR(9)

💅 struct ks8851_net_par(9) — KS8851 Parallel driver private data

okay so this is from the Kernel API Manual, bestie — it's the lil private-data home for the KS8851 Parallel driver, and honestly it's giving "backstage pass to the hardware" ✨

🌸 SYNOPSIS 🌸

struct ks8851_net_par {
    struct ks8851_net       ks8851;
    spinlock_t lock;
    void __iomem            *hw_addr;
    void __iomem            *hw_addr_cmd;
    u16 cmd_reg_cache;
 };

like, that's the whole struct, no cap 🫶

🎀 Members 🎀

• ks8851 — the KS8851 driver common private data. the shared lore, iykyk 💖
• lock — a lock that makes sure the device is not accessed while it's busy. literally a "do not disturb" sign for the chip 🔒
• hw_addr — start address of the data register.
• hw_addr_cmd — start address of the command register.
• cmd_reg_cache — the command register, cached. yes queen, keep it around 👑

✨ Description ✨

so the way that lock works: it ensures the chip is protected when certain operations are in progress 🛡️. and here's the tea — when a read or write packet transfer is in progress, most of the chip registers are not accessible until the transfer is finished and the DMA has been de-asserted. like, the registers are simply unavailable until then 💀 so please respect the lock, fr fr.

🦋 SEE ALSO 🦋

• Kernel file ./drivers/net/ethernet/micrel/ks8851_par.c
• ks8851_lock_par(9), ks8851_unlock_par(9), ks_check_endian(9), ks8851_wrreg16_par(9), ks8851_rdreg16_par(9), ks8851_rdfifo_par(9), ks8851_wrfifo_par(9), ks8851_start_xmit_par(9)

and that's a wrap, bestie 🎀✨ this iconic lil page lives in ./drivers/net/ethernet/micrel, dated October 2026 — go forth and read the kernel source, you absolute main character 👑💜