https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216552
Bug ID: 216552
Summary: [patch] acpi_asus_als: driver for the ambient light
sensor on ASUS laptops
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Keywords: patch
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
CC: [email protected]
Keywords: patch
Created attachment 179378
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=179378&action=edit
patch for the driver
This driver calls the ACPI methods to obtain the ambient light sensor value on
recent ASUS laptops.
It is inspired by the similar driver for Linux at
https://github.com/victorenator/als. Only the specifications in the README file
is referenced to.
It provides sysctl node hw.acpi.asus_als.light which contains the current light
sensor value. The unit seems to be 0.01 lux (compared to a mobile phone).
This patch creates a new module under /sys/modules/acpi called acpi_asus_als.
After loading the module, it attaches to ACPI device with hardware ID ACPI0008
and provides the sysctl node mentioned above.
This driver is tested under 12-CURRENT on an ASUS UX51VZ laptop.
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