sysfs_emit(9)

💅 sysfs_emit(9) — a Kernel API Manual moment, brought to you by section 9

okay so bestie, picture this: it's giving <rainbow>sysfs_emit(9)</rainbow>, and it's the Kernel API Manual page you didn't know you needed but now you're obsessed. it's literally just scnprintf's cooler, more self-aware cousin — except this one actually knows about the PAGE_SIZE buffer and doesn't play games about it. 🎀

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✨ NAME ✨

sysfs_emit — it's the scnprintf equivalent, except it's aware of PAGE_SIZE buffer, which, yes, is the whole personality trait. 🦋

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🌸 SYNOPSIS 🌸

int sysfs_emit (char *buf , const char *fmt , ... );

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🧚 ARGUMENTS 🧚

• buf — this is the start of the PAGE_SIZE buffer. like, the very beginning of it. that's it, that's the vibe. 💖
• fmt — the format. you know what a format is. main character energy.
• ... — the optional arguments to fmt, aka the little extras riding along for the trip. 😭

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👑 DESCRIPTION 👑

it returns the number of characters written to buf. that's it. that's the whole description. no cap, it's a short one and honestly? iconic for that. ✨

lowkey love a manpage that respects your time. 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./fs/sysfs/file.c
• sysfs_create_file_ns(9)
• sysfs_add_file_to_group(9)
• sysfs_chmod_file(9)
• sysfs_break_active_protection(9)
• sysfs_unbreak_active_protection(9)
• sysfs_remove_file_ns(9)
• sysfs_remove_file_self(9)
• sysfs_remove_file_from_group(9)
• sysfs_create_bin_file(9)
• sysfs_remove_bin_file(9)
• sysfs_link_change_owner(9)
• sysfs_file_change_owner(9)
• sysfs_change_owner(9)
• sysfs_emit_at(9)
• sysfs_bin_attr_simple_read(9)

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and that's the page, bestie!! 🎀 this little masterpiece comes to you from ./fs/sysfs, dated October 2026, and its whole title is sysfs_emit(9) — like the header and footer are the same name because it's that consistent. slay. 💅🔥 now go write to a PAGE_SIZE buffer responsibly, i'm rooting for you 💜