PFRT_LOG_IOC_GET_DATA_INFO(9)

💅 PFRT_LOG_IOC_GET_DATA_INFO(9) — Kernel API Manual, bestie edition 🎀

Okay so real talk, this one lives in the Kernel API Manual and the whole page is literally just about one ioctl. Her name is PFRT_LOG_IOC_GET_DATA_INFO and she's kind of an icon for doing exactly one thing. No cap.

---

✨ NAME ✨

PFRT_LOG_IOC_GET_DATA_INFO — which is, in full formal mode, _IOR(PFRUT_IOCTL_MAGIC, 0x08, struct pfrt_log_data_info). Yes that's the entire name and yes it ate. 🫶

---

🦋 SYNOPSIS 🦋

PFRT_LOG_IOC_GET_DATA_INFO

That's it. That's the whole synopsis. She's low maintenance like that.

---

🌸 RETURN 🌸

The tea on what you get back:

• 0 — success 💖 (the dream, the moment, the main character ending)
• -EINVAL — fail to get the log buffer information 🙈 (aka it just couldn't pull the info, that's the vibe)
• -EFAULT — fail to copy the log buffer information to userspace 😭 (the copy step did not slay)

---

🔥 DESCRIPTION 🔥

So basically you call this and it retrieves data information about the telemetry. The information is a struct pfrt_log_data_info. That's the whole plot, but it's a good plot. ⭐

---

🧚 SEE ALSO 🧚

The way that this list is long, I'm obsessed. Go read these, iykyk 💜

Kernel file ./include/uapi/linux/pfrut.h

• PFRU_IOC_SET_REV(9)
• PFRU_IOC_STAGE(9)
• PFRU_IOC_ACTIVATE(9)
• PFRU_IOC_STAGE_ACTIVATE(9)
• PFRU_IOC_QUERY_CAP(9)
• struct pfru_payload_hdr(9)
• struct pfru_update_cap_info(9)
• struct pfru_com_buf_info(9)
• struct pfru_updated_result(9)
• struct pfrt_log_data_info(9)
• struct pfrt_log_info(9)
• PFRT_LOG_IOC_SET_INFO(9)
• PFRT_LOG_IOC_GET_INFO(9)

---

okay that's the whole page, mwah 💋 This little gem comes from ./include/uapi/linux, dated October 2026 ✨ Go forth and get that data info, bestie. 👑🌈