hid_hw_output_report(9)

✨ NAME ✨

okay so bestie, this is hid_hw_output_report from the Kernel API Manual, and its whole vibe is: send output report to device. that's it, that's the function 💅

🦋 SYNOPSIS 🦋

int hid_hw_output_report (struct hid_device *hdev , __u8 *buf , size_t
len );

🎀 ARGUMENTS 🎀

• hdev — hid device. your device handle, the main character 🫶
• buf — raw data to transfer. this is the data going out, no cap 🍓
• len — length of buf. literally how much of that buffer we're working with 💖

💅 RETURN 💅

it returns the count of data transferred ✨. if something goes wrong, the return is negative — yes, negative if error, bestie. so: count of data transferred, negative if error. periodt 😭

🌈 SEE ALSO 🌈

the kernel file in the mix is ./drivers/hid/hid-core.c, and the whole friend group is:

• Kernel file: ./drivers/hid/hid-core.c
• hid_parse_report(9)
• hid_validate_values(9)
• hid_open_report(9)
• hid_match_report(9)
• hid_match_usage(9)
• hid_input_report(9)
• hid_safe_input_report(9)
• hid_hw_start(9)
• hid_hw_stop(9)
• hid_hw_open(9)
• hid_hw_close(9)
• hid_hw_request(9)
• hid_hw_raw_request(9)
• new_id_store(9)
• hid_compare_device_paths(9)
• hid_allocate_device(9)
• hid_destroy_device(9)

source/version: ./drivers/hid · date: October 2026 · page: hid_hw_output_report(9) — bye bestie, go slay those output reports 💖🔥