android usb 上电自检 是在哪一块？
android 开发板，插着usb接口的触摸屏（电阻 电容都试过）我用的vga显示开机，停留在android开机动画的界面就，
通过串口打印信息如下：
ERROR: v4l2 capture: slave not found!
ov3640_write_reg:write reg error:reg=3012,val=80
ERROR: v4l2 capture: slave not found!
ERROR: HDMI is not ready!
asoc: can't open platform imx-hdmi-soc-audio.0
request_suspend_state: wakeup (0->0) at 21970337670 (1970-01-02 00:00:12.673915000 UTC)
init: untracked pid 3011 exited
init: untracked pid 3010 exited
ov3640_write_reg:write reg error:reg=3012,val=80
ov3640_write_reg:write reg error:reg=3012,val=80
ERROR: v4l2 capture: slave not found!
ov3640_write_reg:write reg error:reg=3012,val=80
ERROR: v4l2 capture: slave not found!
ERROR: HDMI is not ready!
asoc: can't open platform imx-hdmi-soc-audio.0
request_suspend_state: wakeup (0->0) at 27010338005 (1970-01-02 00:00:17.713915336 UTC)
init: untracked pid 3252 exited
init: untracked pid 3251 exited
ov3640_write_reg:write reg error:reg=3012,val=80
ov3640_write_reg:write reg error:reg=3012,val=80
ERROR: v4l2 capture: slave not found!
ov3640_write_reg:write reg error:reg=3012,val=80
ERROR: v4l2 capture: slave not found!
ERROR: HDMI is not ready!
asoc: can't open platform imx-hdmi-soc-audio.0
打印信息多为摄像头和hdmi的信息！但是这两者我都没有接阿！
有朋友提示说是把板子的上电自检给关掉就可以了！但是不知道具体要修改哪个文件？？？？
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