请问av_server 启动报错，i2c read 报错是什么原因？具体见日志

用i2crw测试日志如下：
./i2crw.out -r 0x6c 0x300A
[ 381.450000] i2c_transfer(0x36, 0xa)

I2C: Read ERROR !!!

再补充一点日志，如下：
   ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
 [    8.860000]  i2c16_transfer(0x36, 0x30)
ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2[    8.880000]  i2c16_transfer(0x36, 0x30)
cRead16()
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
[    8.890000]  i2c16_transfer(0x36, 0x30)
[    8.910000]  i2c16_transfer(0x36, 0x30)
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i[    8.920000]  i2c16_transfer(0x36, 0x30)
2cRead16()
log status
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
[    8.940000]  i2c16_transfer(0x36, 0x30)
[    8.950000]  i2c16_transfer(0x36, 0x30)
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
Starting portmap daemon:  ERROR  (drv_imgs_OV2715_2MP.c|DR[    8.970000]  i2c16_transfer(0x36, 0x30)
V_imgsCheckId|596): DRV_i2cRead16()
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
[    8.980000]  i2c16_transfer(0x36, 0x30)
log status
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsCheckId|596): DRV_i2cRead16()
 ERROR  (drv_imgs_OV2715_2MP.c|DRV_imgsOpen|46): DRV_imgsCheckId()
 ERROR  (drv_capture.c|DRV_captureOpen|63): Open failed
 ERROR  (videoCaptureThr.c|VIDEO_captureTskCreate|89): DRV_captureOpen()
 ERROR  (videoCaptureThr.c|VIDEO_captureTskMain|694): VIDEO_captureTskCreate() ERROR  (avServerMainThr.c|AVSERVER_tskStart|24):
portmapstart_daemon

你好，
错误是I2C读失败了。你能否测量一下I2C上信号，检查DM36x输出端是否正常。

姜还是老的辣，呵呵，拆机后sensor排线重新插了一下，问题解决了
thx  chris meng ！