STRUCT KS8851_NET_SPI(9)

🌸 NAME 🌸

okay so bestie, this is the Kernel API Manual page for struct ks8851_net_spi(9), and it is literally the private data struct for the KS8851 SPI driver. The official vibe is struct ks8851_net_spi - KS8851 SPI driver private data. That's it, that's the name, no cap 💅

✨ SYNOPSIS ✨

here's the struct in all its iconic glory, copied exactly so you don't have to guess 🫶

       struct ks8851_net_spi {
           struct ks8851_net       ks8851;
           struct mutex            lock;
           struct work_struct      tx_work;
           struct spi_device       *spidev;
           struct spi_message      spi_msg1;
           struct spi_message      spi_msg2;
           struct spi_transfer     spi_xfer1;
           struct spi_transfer     spi_xfer2[2];
        };

🎀 Members 🎀

• ks8851 — the KS8851 driver common private data. It's giving shared-core energy 🔥
• lock — the lock that makes sure the device is not accessed when it's busy. Respect the lock, bestie.
• tx_work — work queue for tx packets. TX girlies stay booked and busy ✨
• spidev — the SPI device we're bound to. That's our plus-one 🫶
• spi_msg1 — pre-setup SPI transfer with one message, spi_xfer1. One-message icon.
• spi_msg2 — pre-setup SPI transfer with two messages, spi_xfer2. Two-message main character.
• spi_xfer1 — spi_msg1 SPI transfer structure. Yes, literally that.
• spi_xfer2 — spi_msg2 SPI transfer structure. Also literally that.

💖 Description 💖

so the lock is there to ensure that the chip is protected when certain operations are in progress. When the 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. That's the tea ☕️ don't expect those registers to answer mid-transfer, fr fr.

🔥 SEE ALSO 🔥

• Kernel file ./drivers/net/ethernet/micrel/ks8851_spi.c
• ks8851_lock_spi(9)
• ks8851_unlock_spi(9)
• ks8851_wrreg16_spi(9)
• ks8851_rdreg(9)
• ks8851_rdreg16_spi(9)
• ks8851_rdfifo_spi(9)
• ks8851_wrfifo_spi(9)
• calc_txlen(9)
• ks8851_tx_work(9)
• ks8851_flush_tx_work_spi(9)
• ks8851_start_xmit_spi(9)

go read these next, bestie, they're all linked and ready 👑

that's the whole page, bestie 🫶 this came from ./drivers/net/ethernet/micrel, dated October 2026, and it's the struct ks8851_net_spi(9) manual entry. bye 💅✨