hid_hw_raw_request(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hid_hw_raw_request(9) 💅

okay so bestie, welcome to the kernel API manual (yes, that manual) — today's main character is hid_hw_raw_request, and honestly? she serves. let's get into it 🫶

✨ NAME ✨

hid_hw_raw_request — send a report request to the device. that's it, that's the vibe. 📨

🌸 SYNOPSIS 🌸

int hid_hw_raw_request (struct hid_device *hdev , unsigned char
reportnum , __u8 *buf , size_t len , enum hid_report_type rtype , enum
hid_class_request reqtype );

like yes, it's a lot of parameters, but we don't gatekeep function signatures here 💅

🎀 ARGUMENTS 🎀

  • hdev — the hid device. your fave. the one you're talking to 💖
  • reportnum — report ID. gotta know which report you're sliding into ✨
  • buf — the in/out data to transfer. in and out, she's versatile like that 🦋
  • len — length of buf. keep it accurate or it's giving chaos 😭
  • rtype — HID report type. the type of report, iykyk 🌈
  • reqtype — either HID_REQ_GET_REPORT or HID_REQ_SET_REPORT. pick one, bestie — get it or set it 🔥

👑 RETURN 👑

count of data transferred 💫 — and if something went wrong? negative. yes, negative. not me crying over an error code 😭

💀 DESCRIPTION 💀

Same behavior as hid_hw_request, but with raw buffers instead.

that's the whole thing. same energy, raw buffers. she said "I'm my sister but unprocessed" and honestly? iconic 🧚

🦋 SEE ALSO 🦋

Kernel file ./drivers/hid/hid-core.c — and the whole friend group:

literally the entire squad, go read them all, no cap 📚✨

mwah 💋 this page lives in ./drivers/hid, dated October 2026, and yes the version tag matches the manual name hid_hw_raw_request(9) because she's consistent like that. periodt. 🎀

📦 where this page comes from