sensor_hub_..._read_values(9)

🌸 NAME 🌸

<hotpink>sensor_hub_input_attr_read_values</hotpink> — Synchronous multi-byte read request 🎀

This is the sensor_hub_..._read_values(9) page from the Kernel API Manual, and your fave Unix bestie is about to walk you through it. No cap, it’s giving kernel-level read energy 💅

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✨ SYNOPSIS ✨

okay so the signature is literally this:

int sensor_hub_input_attr_read_values (struct hid_sensor_hub_device
*hsdev , u32 usage_id , u32 attr_usage_id , u32 report_id , enum
sensor_hub_read_flags flag , u32 buffer_size , u8 *buffer );

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🫶 ARGUMENTS 🫶

Here’s the cast of characters, bestie 🎬

• hsdev — Hub device instance.
• usage_id — Attribute usage id of parent physical device as per spec.
• attr_usage_id — Attribute usage id as per spec.
• report_id — Report id to look for.
• flag — Synchronous or asynchronous read.
• buffer_size — Size of the buffer in bytes.
• buffer — Buffer to store the read data.

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💖 DESCRIPTION 💖

So what does it actually do? It issues a synchronous or asynchronous read request for an input attribute, accumulating data into the provided buffer until it is full. That’s the whole plot ✨

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🎀 RETURN 🎀

The vibe check on the return value is:

• 0 on success 🎉
• -ETIMEDOUT if the device did not respond 😭
• or a negative error code.

bestie, please actually check the return value. negative error codes are not a cute look 🙈

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🦋 SEE ALSO 🦋

Go touch grass in these other pages after you’re done here 🌱

• Kernel file ./include/linux/hid-sensor-hub.h
• struct hid_sensor_hub_attribute_info(9)
• struct sensor_hub_pending(9)
• struct hid_sensor_hub_device(9)
• struct hid_sensor_hub_callbacks(9)
• sensor_hub_device_open(9)
• sensor_hub_device_close(9)
• sensor_hub_register_callback(9)
• sensor_hub_remove_callback(9)
• sensor_hub_input_get_attribute_info(9)
• sensor_hub_set_feature(9)
• sensor_hub_get_feature(9)

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mwah 💋 — this page’s source/version is ./include/linux, dated October 2026, and it’s the sensor_hub_..._read_values(9) page. Bye bestie, slay your reads ✨👑