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Alert devd when acpi_video brightness changes
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Authored by cperciva on Apr 14 2020, 8:33 PM.
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Details

Summary

On my new Dell laptop, the brightness hotkeys (Fn+<up arrow> and Fn+<down arrow>) send ACPI notifications to acpi_video but the backlight brightness does not change. This patch makes acpi_video forward those notifications to devd, which allows me to invoke intel_backlight from userland.

Test Plan

Works for me. I'm posting this here in case because I'm not familiar with ACPI or devd and someone might tell me that I'm doing this wrong...

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rS FreeBSD src repository - subversion
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