16 lines
351 B
Lua
16 lines
351 B
Lua
local base = "/sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-eDP-1/intel_backlight/"
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function readnum(file)
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local f = io.open(base .. file,'r')
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local n = f:read("*number")
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f:close()
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return n
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end
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local cur = readnum("brightness")
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local min = 0
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local max = readnum("max_brightness")
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print( string.format("[%s,%s] %s", min, max, cur) )
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