trc_show(9)

💅 trc_show — a kernel API manual, bestie edition

okay so real talk — this is trc_show(9) from the Kernel API Manual, and it's literally the show method for the mei device's trc attribute. that's it, that's the vibe. now let's get into it ✨

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🌸 NAME 🌸

trc_show — the mei device trc attribute show method. she shows, she slays, that's her whole job 🎀

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🦋 SYNOPSIS 🦋

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

not me writing out the whole signature for you 🫶 it's ssize_t, it takes three args, and it's coming for your buf.

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💖 ARGUMENTS 💖

• device — device pointer. yeah, that device pointer. the main character of the argument list 👑
• attr — attribute pointer. the attribute in question, bestie 💅
• buf — char out buffer. this is where the output goes to live its best life ⭐

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✨ RETURN ✨

the number of bytes printed into buf, or an error 😭 — so like, either a cute little count or a whole situation. check it, fr fr.

ngl, always check the return value. an error is not the vibe. 💀

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🔥 SEE ALSO 🔥

the whole friend group, no cap — kernel file ./drivers/misc/mei/main.c, plus literally everyone:

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), fw_status_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. go forth and show your trc. iykyk 🌈

source/version: ./drivers/misc/mei · dated: October 2026 · page: trc_show(9) — mwah, stan this manpage, periodt 💜🎀