STRUCT CORESIGHT_OPS_SINK(9)

💖 struct coresight_ops_sink — Kernel API Manual 💖

✨ NAME ✨

struct coresight_ops_sink — basic operations for a sink. These are the operations available for sinks, bestie. 🫶

🦋 SYNOPSIS 🦋

Here’s the struct in all its exact, character-for-character glory — no cap, don’t touch the punctuation:

       struct coresight_ops_sink {
           int (*enable)(struct coresight_device *csdev, enum cs_mode mode,
       struct coresight_path *path);
           int (*disable)(struct coresight_device *csdev);
           void *(*alloc_buffer)(struct coresight_device *csdev, struct
       perf_event *event, void **pages, int nr_pages, bool overwrite);
           void (*free_buffer)(void *config);
           unsigned long (*update_buffer)(struct coresight_device *csdev,
       struct perf_output_handle *handle, void *sink_config);
        };

💅 Members 💅

Okay so the members are giving “small struct, big responsibilities”:

• enable — enables the sink. Slay. 💅
• disable — disables the sink. Also slay. ✨
• alloc_buffer — initialises perf's ring buffer for trace collection. 🎀
• free_buffer — release memory allocated in get_config. Yes, it literally says get_config. 👀
• update_buffer — update buffer pointers after a trace session. 🌸

🌈 SEE ALSO 🌈

Go peek at these too, iykyk:

• Kernel file: ./include/linux/coresight.h
• union coresight_dev_subtype(9)
• struct coresight_platform_data(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_link(9)
• struct coresight_ops_source(9)
• struct coresight_ops_helper(9)
• struct coresight_ops_panic(9)

That’s the whole vibe. This page is from ./include/linux, dated October 2026, and it’s the struct coresight_ops_sink(9) entry in the Kernel API Manual — mwah 💋💖