fw_status_show(9)

🌸 NAME 🌸

okay bestie, welcome to the Kernel API Manual entry for fw_status_show(9) — yes, that's the title, and we're already slaying. This is literally the show method for the mei device fw_status attribute. no cap, it's giving tiny kernel helper with main character energy 💅

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✨ SYNOPSIS ✨

here's the exact signature, bestie — do not retype it from memory:

ssize_t fw_status_show (struct device *device , struct device_attribute
       *attr , char *buf );

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💖 ARGUMENTS 💖

the cast, in order:

• device — the device pointer. it's the device, periodt.
• attr — the attribute pointer. iconic.
• buf — a char out buffer. this is where the output goes, okay?

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🌟 RETURN 🌟

it returns the number of the bytes printed into buf or error. that's the whole deal: bytes count if it worked, error if it didn't. no extra lore 🫶

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🦋 SEE ALSO 🦋

the kernel file is ./drivers/misc/mei/main.c, and here are all the cross-refs, bestie — every single one, not skipping any:

• mei_open(9)
• mei_cl_vtag_remove_by_fp(9)
• mei_release(9)
• mei_read(9)
• mei_cl_vtag_by_fp(9)
• mei_write(9)
• mei_ioctl_connect_client(9)
• mei_vt_support_check(9)
• mei_ioctl_connect_vtag(9)
• mei_ioctl_client_notify_request(9)
• mei_ioctl_client_notify_get(9)
• mei_ioctl(9)
• mei_poll(9)
• mei_cl_is_write_queued(9)
• mei_fsync(9)
• mei_fasync(9)
• trc_show(9)
• hbm_ver_show(9)
• hbm_ver_drv_show(9)
• fw_ver_show(9)
• dev_state_show(9)
• mei_set_devstate(9)
• kind_show(9)
• mei_minor_get(9)
• mei_minor_free(9)

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🎀 that's the whole page, bestie. source/version: ./drivers/misc/mei; date: October 2026. go be iconic in the kernel 🌈💖