msc_win_to_user(9)

💅 msc_win_to_user(9) — Kernel API Manual

okay bestie, welcome to the manual page for msc_win_to_user(9) ✨ this is a little iterator helper for msc_buffer_iterate() whose whole job is copying data to user space 🫶 like it's giving "middleware but make it kernel" and honestly? iconic.

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🌸 NAME 🌸

msc_win_to_user — iterator for msc_buffer_iterate() to copy data to user

no cap, that's the whole vibe: it shows up as the iterator callback so the iterate machinery can push data out to user space 💖

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✨ SYNOPSIS ✨

unsigned long msc_win_to_user (void *data , void *src , size_t len );

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🎀 ARGUMENTS 🎀

• data — callback's private data 👑
• src — source buffer 🌸
• len — amount of data to copy from the source buffer 🦋

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⭐ RETURN ⭐

>= 0 for success or -errno for error. fr fr, that's the contract 💅

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🌈 SEE ALSO 🌈

Kernel file ./drivers/hwtracing/intel_th/msu.c plus the whole friend group: struct msc_window(9), struct msc_iter(9), struct msc(9), struct msu_buffer_entry(9), msc_is_last_win(9), msc_next_window(9), msc_find_window(9), msc_oldest_window(9), msc_win_oldest_sg(9), msc_buffer_iterate(9), msc_buffer_clear_hw_header(9), msc_configure(9), msc_disable(9), msc_buffer_contig_alloc(9), msc_buffer_contig_free(9), msc_buffer_contig_get_page(9), msc_buffer_win_alloc(9), msc_buffer_win_free(9), msc_buffer_relink(9), msc_buffer_free(9), msc_buffer_alloc(9), msc_buffer_unlocked_free_unless_used(9), msc_buffer_free_unless_used(9), msc_buffer_get_page(9), struct msc_win_to_user_struct(9), intel_th_msc_window_unlock(9) 💀 that's a lot of links but we are obsessed with cross-references actually.

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okay that's the page, bestie 🎀 source is ./drivers/hwtracing/intel_th, dated October 2026, and the manual name is msc_win_to_user(9) — periodt 💅💖