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android E9开发板插着usb设备无法启动

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f839903061 发表于 2014-5-26 21:03:04 | 显示全部楼层 |阅读模式
本帖最后由 f839903061 于 2014-5-26 21:04 编辑

系统烧录成功之后用hdmi  vga显示都正常
手里有usb接口的触摸屏,电容   电阻都有 !插着usb启动板子,无法启动成功!如果启动完成之后再插usb触摸屏是没问题的!


下面是插着usb触摸屏启动开发板过程中通过串口查看的log日志如下:
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

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