[PATCH v2 05/11] platform/x86: fujitsu-laptop: sync brightness in set_lcd_level()

2017-04-05 Thread Michał Kępień
When using brightness keys and backlight device's sysfs interface alternately, an incorrect input event might be generated for a brightness key press. Consider the following sequence of events: 1. Set backlight brightness to 6 using brightness keys. 2. Write 4 to

[PATCH v2 05/11] platform/x86: fujitsu-laptop: sync brightness in set_lcd_level()

2017-04-05 Thread Michał Kępień
When using brightness keys and backlight device's sysfs interface alternately, an incorrect input event might be generated for a brightness key press. Consider the following sequence of events: 1. Set backlight brightness to 6 using brightness keys. 2. Write 4 to