• Hans de Goede's avatar
    HID: logitech-hidpp: change low battery level threshold from 31 to 30 percent · 1f87b0cd
    Hans de Goede authored
    According to hidpp20_batterylevel_get_battery_info my Logitech K270
    keyboard reports only 2 battery levels. This matches with what I've seen
    after testing with batteries at varying level of fullness, it always
    reports either 5% or 30%.
    
    Windows reports "battery good" for the 30% level. I've captured an USB
    trace of Windows reading the battery and it is getting the same info
    as the Linux hidpp code gets.
    
    Now that Linux handles these devices as hidpp devices, it reports the
    battery as being low as it treats anything under 31% as low, this leads
    to the user constantly getting a "Keyboard battery is low" warning from
    GNOME3, which is very annoying.
    
    This commit fixes this by changing the low threshold to anything under
    30%, which I assume is what Windows does.
    Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
    Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
    1f87b0cd
hid-logitech-hidpp.c 94.2 KB