STRUCT VENDOR_DATA(9)

💖 struct vendor_data(9) — Kernel API Manual 💖

okay so bestie, this is the Kernel API Manual page for struct vendor_data, and it's lowkey iconic for one job: holding the vendor-specific config parameters for PL022 derivates. ✨ It’s giving “small struct, specific vibes,” and we’re gonna go through every member, no skips. 🫶

🌸 NAME 🌸

struct vendor_data — vendor-specific config parameters for PL022 derivates. periodt. 💅

✨ SYNOPSIS ✨

struct vendor_data {
    int fifodepth;
    int max_bpw;
    bool unidir;
    bool extended_cr;
    bool pl023;
    bool loopback;
    bool internal_cs_ctrl;
 };

🎀 Members 🎀

• fifodepth — the depth of the FIFOs (both of them, bestie). 🍓
• max_bpw — the maximum number of bits per word. literally that. ✨
• unidir — supports unidirection transfers. 🌸
• extended_cr — this one is a 32 bit wide control register 0 with extra features, and extra features in CR1 too, as found in the ST variants. the way it has extra features twice? iykyk. 😭
• pl023 — supports a subset of the ST extensions called "PL023". 👑
• loopback — supports loopback mode. slay. 🦋
• internal_cs_ctrl — supports the chip select control register. 🎀

💅 SEE ALSO 💅

Kernel file ./drivers/spi/spi-pl022.c is the spot, and the SEE ALSO besties are: struct pl022(9), struct chip_data(9), internal_cs_control(9), flush(9), restore_state(9), load_ssp_default_config(9), configure_dma(9), pl022_interrupt_handler(9), pl022_setup(9), and pl022_cleanup(9). go read those too, fr fr. 🌈

okay bye bestie 💖 this page lives under ./drivers/spi, it’s dated October 2026, and it’s literally struct vendor_data(9) — mwah 🎀✨