nvdimm_read_bytes(9)

💅 nvdimm_read_bytes(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this page is all about nvdimm_read_bytes, and it is literally giving “synchronously read bytes from an nvdimm namespace.” no cap, it’s a whole little helper and we’re gonna walk through it together 🫶💖

🌸 NAME 🌸

nvdimm_read_bytes — synchronously read bytes from an nvdimm namespace 💫

🎀 SYNOPSIS 🎀

int nvdimm_read_bytes (struct nd_namespace_common *ndns ,
       resource_size_t offset , void *buf , size_t size , unsigned long flags
       );

✨ ARGUMENTS ✨

• ndns — device to read 🫶
• offset — namespace-relative starting offset 📍
• buf — buffer to fill 🧺
• size — transfer length 📏
• flags — process (0) or atomic (1) context ⚡

💖 DESCRIPTION 💖

okay so the tea here is short and sweet: buf is up-to-date upon return from this routine. that’s it, that’s the vibe check ☕✨

🔥 RETURN 🔥

0 on success or a negative error code on failure. slay when it’s zero, sad little negative when it’s not 💀💅

👀 SEE ALSO 👀

go peek at these, bestie:

• Kernel file ./include/linux/nd.h
• struct nvdimm_pmu(9)
• struct nd_namespace_common(9)
• struct nd_namespace_io(9)
• struct nd_namespace_pmem(9)
• nvdimm_write_bytes(9)

and the cute little footer sign-off: source/version is ./include/linux, date is October 2026, and the page is nvdimm_read_bytes(9). periodt 💅🎀✨