capability_store(9)

💅 capability_store(9) — like, the whole vibe

okay so bestie, we're in the Kernel API Manual today (yes, that Kernel API Manual 👑) and the star of the show is capability_store. She's a store function for the sysfs attribute capability, and honestly? she ate. Let's get into it. 🎀

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✨ NAME ✨

capability_store — the set function for the sysfs attribute capability. that's it, that's her whole job description 💅

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🦋 SYNOPSIS 🦋

ssize_t capability_store (struct device *dev , struct device_attribute
*attr , const char *buf , size_t count );

look at that signature. gorgeous. iconic. no notes. 🔥

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🌸 ARGUMENTS 🌸

• dev — the struct device. the main character of the argument list, as always 🫶
• attr — device attributes. yes plural, yes she contains multitudes ✨
• buf — the buffer that contains the new attribute value. this is where the actual tea lives 🍓
• count — size of buffer. so she knows how much of buf is, like, real 👑

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🌈 SEE ALSO 🌈

first up, the kernel file herself:

• Kernel file ./drivers/net/wireless/marvell/libertas/mesh.c

and now the whole friend group, no one left out, fr fr 💖:

• anycast_mask_show(9), anycast_mask_store(9), prb_rsp_limit_show(9), prb_rsp_limit_store(9), lbs_mesh_show(9), lbs_mesh_store(9), bootflag_show(9), bootflag_store(9), boottime_show(9), boottime_store(9), channel_show(9), channel_store(9), mesh_id_show(9), mesh_id_store(9), protocol_id_show(9), protocol_id_store(9), metric_id_show(9), metric_id_store(9), capability_show(9), lbs_mesh_stop(9), lbs_mesh_dev_open(9), lbs_add_mesh(9)

like… a whole mesh squad. the way they all showed up to the function list together 😭💜

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ngl bestie, everything above is literally the whole page — no hidden extra options, no secret defaults, no environment variables lurking. what you see is what you get, and what you get is correct. 💀✨

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kiss kiss, this page came from the Kernel API Manual and is dated October 2026 — take care of her, she's under ./drivers/net/wireless/marvell/... and she's doing her best 🧚💖