write_byte_cnt_show(9)

💅 write_byte_cnt_show(9) — the kernel API manual, but make it cute

okay so bestie, welcome to write_byte_cnt_show from the Kernel API Manual ✨ this one is a tiny little show-and-tell function and honestly it's giving "quiet kid in the back of the class who's actually a genius" energy 🎀

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🌸 NAME 🌸

write_byte_cnt_show — write byte count, aka the raw count of bytes written to tape 🎞️✨ no cap, that's literally all it is.

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🦋 SYNOPSIS 🦋

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

three args, one return type, zero drama 🫶

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💖 ARGUMENTS 💖

• dev — a struct device 🖥️ the device in question, just vibing there being a device.
• attr — the attribute structure 🎀 the whole reason we're all here.
• buf — the buffer where the formatted data gets returned 📥 like, this is where you put the pretty output, bestie.

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👑 SEE ALSO 👑

lowkey the whole friend group lives in the kernel file ./drivers/scsi/st.c and you should absolutely go say hi to all of them 💜:

• scsi_tape_release(9)
• position_lost_in_reset_show(9)
• read_cnt_show(9)
• read_byte_cnt_show(9)
• read_ns_show(9)
• write_cnt_show(9)
• write_ns_show(9)
• in_flight_show(9)
• io_ns_show(9)
• other_cnt_show(9)
• resid_cnt_show(9)

periodt 💅 they're all icons, they all show things, it's a whole squad 🌈

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🫶 friendly reminder: this page lives under ./drivers/scsi — that's the neighborhood, iykyk.

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and that's the whole page, bestie 😭💀 this cutie came from ./drivers/scsi, dated October 2026, and it's filed as write_byte_cnt_show(9) — slay, go read some tape stats ✨🎀💖