c2_area 2288 drivers/hid/hid-logitech-hidpp.c u8 c2_area = ((data[13] & 0xf) * (data[13] & 0xf) + c2_area 2306 drivers/hid/hid-logitech-hidpp.c .z = c2_area, c2_area 2307 drivers/hid/hid-logitech-hidpp.c .area = c2_area,