STRUCT CORESIGHT_PLATFORM_DATA(9)

💖 STRUCT CORESIGHT_PLATFORM_DATA(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes we're in the kernel section today, put your hair up, we're getting into it. This page is all about struct coresight_platform_data, which is literally the data harvested from the firmware specification. that's it, that's the vibe. it's giving "the firmware told me its whole life story and i wrote it down." 🎀

✨ SYNOPSIS ✨

struct coresight_platform_data {
    int nr_inconns;
    int nr_outconns;
    struct coresight_connection **out_conns;
    struct coresight_connection **in_conns;
 };

look at her. four members. flawless. no notes. 💅

🌸 Members 🌸

• nr_inconns — the number of elements for the input connections. that's how many ins we're talking about, bestie. count them. 🔢
• nr_outconns — the number of elements for the output connections. same energy, but for the outs. 📤
• out_conns — an array of nr_outconns pointers to connections from this component. it points outward, like your friend who's always like "omg you have to meet my other friend." 🦋
• in_conns — a sparse array of pointers to input connections. and why is it sparse? because the source device owns the connection — so when it gets unloaded, the connection just leaves an empty slot behind. no cap, it's literally a ghosted slot. 😭👻

🔥 SEE ALSO 🔥

kernel file ./include/linux/coresight.h and the whole coresight friend group — they all hang out together:

• union coresight_dev_subtype(9)
• struct csdev_access(9)
• struct coresight_desc(9)
• struct coresight_connection(9)
• struct coresight_sysfs_link(9)
• struct coresight_device(9)
• struct coresight_path(9)
• struct coresight_ops_sink(9)
• struct coresight_ops_link(9)
• struct coresight_ops_source(9)
• struct coresight_ops_helper(9)
• struct coresight_ops_panic(9)

okay that's the whole page, you ate that 🫶 go forth and be iconic with your connections.

and that's a wrap, bestie! this little gem lives in ./include/linux, dated October 2026, and it signs off exactly the way it came in: struct cores...latform_data(9) — iconic from start to finish, periodt. 👑🌈⭐