A:背光設置
1: # cd /sys/devices/platform/m805_892x-backlight.0/leds/lcd-backlight
2:# ls
brightness
device
max_brightness
power
subsystem
trigger
uevent
3:用cat可以查看相關信息,如果要設置背光亮度可以用echo數值到brightness,比如:echo 30 > brightness
B: 耳機和喇叭聲音相反
1: 修改drivers/switch/switch_gpio_tcc.c耳機檢查狀態判斷
-- if (state) switch_data->state_val = TCC_BIT_HEADSET_NO_MIC;
-- else switch_data->state_val = 0;
++ if (state) switch_data->state_val = 0;
++ else switch_data->state_val = TCC_BIT_HEADSET_NO_MIC;
C:dpi修改
1:lvds 1024×768,修改文件ics/device/telechips/m805_892x/device_base.make,將ro.sf.lcd_density=120改爲ro.sf.lcd_density=160
D:製作SD系統升級文件
1:make otapackage出現如下錯誤
Could not create the Java virtual machine.
ERROR: signapk.jar failed: return code 1
由於虛擬機空間不夠需要修改小些修改build/tools/releasetools/common.py文件
cmd = ["java", "-Xmx2048m", "-jar",
os.path.join(OPTIONS.search_path, "framework", "signapk.jar")]
其中的-Xmx2048m 改爲-Xmx1024m