Messages in this thread | | | From | Dan Callaghan <> | Subject | [PATCH v5 0/1] Add a driver for the ChromeOS human presence sensor (HPS) | Date | Wed, 12 Oct 2022 15:09:17 +1100 |
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This series adds a driver for the ChromeOS human presence 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 control the power state of the device. The driver automatically turns power off to the sensor unless a process is using it.
More information about HPS, its firmware and communication protocol can be found at https://chromium.googlesource.com/chromiumos/platform/hps-firmware.
Changes in v5: - Updated MAINTAINERS.
Changes in v4: - Simplified open/release pm logic. - Renamed device to "cros-hps". - Stylistics cleanups.
Changes in v3: - Moved from drivers/misc to drivers/platform/chrome.
Changes in v2: - Removed custom ioctl interface. - Reworked to use miscdev.
Sami Kyöstilä (1): platform/chrome: add a driver for HPS
MAINTAINERS | 6 + drivers/platform/chrome/Kconfig | 10 ++ drivers/platform/chrome/Makefile | 1 + drivers/platform/chrome/cros_hps_i2c.c | 151 +++++++++++++++++++++++++ 4 files changed, 168 insertions(+) create mode 100644 drivers/platform/chrome/cros_hps_i2c.c
base-commit: 8edd2752b0aa498b3a61f3caee8f79f7e0567fad -- 2.38.0.rc1.362.ged0d419d3c-goog
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