Hi all,
I read the drivers/acpi/video.c:
895 result = acpi_video_device_lcd_set_level(device, max_level);
896 if (result)
897 goto out_free_levels;
898
899 result = acpi_video_device_lcd_get_level_current(device, &level);
900 if (result)
901 goto out_free_levels;
902
903 br->flags._BQC_use_index = (level == max_level ? 0 : 1);
904
905 if (!br->flags._BQC_use_index) {
912 for (i = 2; i < br->count; i++)
913 if (level_old == br->levels[i])
914 level = level_old;
915 goto set_level;
916 }
why after level == max_level, it will still need set_level again?
is this a bug, or it is necessary.
thx
luke
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