gluebi_read(9)

🌸 NAME 🌸

okay so bestie, welcome to the Kernel API Manual side of the group chat 💅 this is all about gluebi_read — and it is literally the read operation of emulated MTD devices. no cap, that's the name and the vibe 🫶

✨ SYNOPSIS ✨

here's the exact signature, copy-paste energy and all:

       int gluebi_read (struct mtd_info *mtd , loff_t from , size_t len ,
       size_t *retlen , unsigned char *buf );

🎀 ARGUMENTS 🎀

• mtd — the MTD device description object, aka the device's whole lil info card 🪪
• from — absolute offset from where to read, like the exact spot on the map 📍
• len — how many bytes to read, aka the snack size 🍓
• retlen — count of read bytes is returned here, so this is where the actual tally lands 🧮
• buf — buffer to store the read data, the lil data bucket 🪣

💖 DESCRIPTION 💖

return vibe check: this function returns zero in case of success and a negative error code in case of failure. so zero = successful slay ✅, negative error code = failure mode 😭. that's the whole return story, periodt.

🦋 SEE ALSO 🦋

go peek at these related besties:

• Kernel file ./drivers/mtd/ubi/gluebi.c
• struct gluebi_device(9)
• find_gluebi_nolock(9)
• gluebi_get_device(9)
• gluebi_put_device(9)
• gluebi_write(9)
• gluebi_erase(9)
• gluebi_create(9)
• gluebi_remove(9)
• gluebi_updated(9)
• gluebi_resized(9)
• gluebi_notify(9)

that's the whole page, bestie 🫶 this little manpage's source/version spot is ./drivers/mtd/ubi, the date is October 2026, and the title is gluebi_read(9) — bye, hydrate and stan emulated MTD devices 💜