linux-kernel - [PATCH 0/2] Add a driver for the ChromeOS snooping protection sensor (HPS)

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Date:   Thu, 27 Jan 2022 19:35:43 +1100
From:   Sami Kyöstilä <skyostil@...omium.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     dtor@...omium.org, evanbenn@...omium.org, arnd@...db.de,
        gregkh@...uxfoundation.org,
        Sami Kyöstilä <skyostil@...omium.org>
Subject: [PATCH 0/2] Add a driver for the ChromeOS snooping protection sensor (HPS)

This series adds a driver for the ChromeOS snooping protection sensor
(a.k.a. HPS) device, attached on the I2C bus. The sensor is a
hardware-isolated module which reports a high-level presence signal,
e.g., whether there is person in front of the computer or not.

The driver exposes the device to userspace as a character device, which
can be used to send and receive messages to the sensor. The driver
automatically turns power off to the sensor unless a process is

More information about HPS, its firmware and communication protocol can
be found at
https://chromium.googlesource.com/chromiumos/platform/hps-firmware.

Sami Kyöstilä (2):
  drivers/misc: add a driver for HPS
  drivers/misc: add transfer ioctl for HPS

 MAINTAINERS              |   7 +
 drivers/misc/Kconfig     |  10 ++
 drivers/misc/Makefile    |   1 +
 drivers/misc/hps-i2c.c   | 304 +++++++++++++++++++++++++++++++++++++++
 include/uapi/linux/hps.h |  20 +++
 5 files changed, 342 insertions(+)
 create mode 100644 drivers/misc/hps-i2c.c
 create mode 100644 include/uapi/linux/hps.h

-- 
2.35.0.rc0.227.g00780c9af4-goog