mei_fw_status2str(9)

💅 mei_fw_status2str(9) — the kernel API manual, bestie edition

okay so this is a page from the Kernel API Manual, section 9, and it's all about mei_fw_status2str — literally the glow-up function that takes your firmware status registers and turns them into a string you can actually print. no cap, it's giving "make the numbers cute so humans can read them" 💖

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✨ NAME ✨

mei_fw_status2str — convert fw status registers to printable string 🎀

like, that's the whole job. registers in, readable string out. slay.

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🦋 SYNOPSIS 🦋

ssize_t mei_fw_status2str (struct mei_fw_status *fw_status , char *buf ,
size_t len );

look at her. three args, returns a ssize_t. main character energy fr fr 👑

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🌸 ARGUMENTS 🌸

• fw_status — the firmware status. this is the struct you're handing over, the actual fw status registers that need translating into something printable 💫
• buf — the string buffer, and it has to be at minimal size MEI_FW_STATUS_STR_SZ. like, don't skimp, bestie, she needs room 🫶
• len — the buffer length, and it must be >= MEI_FW_STATUS_STR_SZ. no small energy allowed here 🙈

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⭐ RETURN ⭐

you get back the number of bytes written ✨ ... or -EINVAL if the buffer is too small 😭 (yes, too small is a real problem, not a vibe, the call just gives up and tells you -EINVAL)

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/misc/mei/init.c
• mei_cancel_work(9)
• mei_reset(9)
• mei_start(9)
• mei_restart(9)
• mei_write_is_idle(9)
• mei_device_init(9)

go read those too, iykyk 💜 the whole friend group is iconic, honestly 👑

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reminder bestie: len must be >= MEI_FW_STATUS_STR_SZ and buf should be at minimal size MEI_FW_STATUS_STR_SZ. don't come crying to me when you get -EINVAL 💀

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and that's the page!! 🎀 source/version is ./drivers/misc/mei and the date on this one is October 2026 — stamped, dated, and absolutely iconic. periodt. 💅🌈