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mirror of https://github.com/NixOS/mobile-nixos.git synced 2024-12-18 05:21:47 +03:00
mobile-nixos/boot/init/tasks/graphics.rb
2020-02-03 16:19:10 -05:00

25 lines
757 B
Ruby

# Ensures graphics have been initialized and are ready to be used.
#
# Currently this only handles the "legacy fbdev" style of framebuffers.
class Tasks::Graphics < SingletonTask
def initialize()
add_dependency(
:Files,
"/sys/class/graphics/fb0/mode",
"/sys/class/graphics/fb0/modes",
)
# This is only incidental to the fact that /dev/fb0 wouldn't exist for
# users of the "Graphics" dependency.
add_dependency(:Mount, "/dev")
# Make the Graphics target depend on this task.
Targets[:Graphics].add_dependency(:Task, self)
end
def run()
mode = File.read("/sys/class/graphics/fb0/modes")
log("Setting framebuffer mode to: #{mode}")
System.write("/sys/class/graphics/fb0/mode", mode)
end
end