STRUCT FUNNEL_DRVDATA(9)

💫 struct funnel_drvdata(9) 💫

okay bestie, welcome to the kernel API manual — this one is struct funnel_drvdata, and it's literally the little data bundle that holds all the specifics associated to a funnel component 🎀 (yes, that's the NAME section, we're doing this properly).

✨ SYNOPSIS ✨

struct funnel_drvdata {
    void __iomem            *base;
    struct clk              *atclk;
    struct clk              *pclk;
    struct coresight_device *csdev;
    unsigned long           priority;
    raw_spinlock_t spinlock;
 };

look at her. six fields. main character energy fr fr 👑

🫶 Members 🫶

• base — the memory mapped base address for this component. that's her home address, no cap 🏠
• atclk — optional clock for the core parts of the funnel. optional!! she's flexible 💅
• pclk — the APB clock if present, otherwise NULL. so if there's no APB clock, bestie is NULL 🙈
• csdev — component vitals needed by the framework. the framework's lil care package 🎀
• priority — port selection order. who gets picked first, basically 🌈
• spinlock — serialize enable/disable operations. one at a time, please, we're not doing chaos 🔒

👑 SEE ALSO 👑

Kernel file ./drivers/hwtracing/coresight/coresight-funnel.c — go read it, iykyk 💖

ngl this struct is lowkey iconic: clocks, a device pointer, a priority, and a spinlock to keep enable/disable from overlapping. obsessed 🦋

ok so this whole thing lives in ./drivers/hwtracing/coresight, and this edition is dated October 2026, page struct funnel_drvdata(9) — catch you in the next manpage, bestie, mwah 💜🌸