[Chuanglong TLA40i-EVM development board] +04.USB-Camera test-abnormal (zmj)

卿小小 · Published on 2022-10-23 21:37

[Chuanglong TLA40i-EVM development board] +04.USB-Camera test-abnormal (zmj) [Copy link]

[Chuanglong TLA40i-EVM development board] +04.USB-Camera test-abnormal (zmj)

The original plan was to test the USB-Camera, and after it functioned normally, perform functions such as Sobel edge detection.

In actual tests, after the USB-Camera is inserted, the device ID can be recognized normally, but the device list is not updated, and devices such as video0 and video1 are not added to the /dev/ directory.

The cause is currently unknown, but initial speculation is that there is a bug in the transplant system.

//------USB-Camera test exception
a. Insert the USB-Camera and the log information will be automatically displayed.
b. Pay special attention to the ID "1a40 0801" and whether there are any errors.
c. No error is reported here, indicating that the USB-Camera device is normal.

//------END

卿小小 · Published on 2022-10-23 21:47

HDMI显示屏可以正常显示输出，USB-Camera可以正常检测，但是在/DEV/中并无video设备……

卿小小 · Published on 2022-10-23 21:49

//------USB-Camera测试异常
a.插入USB-Camera，自动提示Log信息。
b.主要关注ID “1a40 0801”以及有无错误Errors。
c.此处并未报错，说明USB-Camera设备正常。