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Ask about the kernel driver

Source: Internet
Author: User
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For details about the kernel driver, refer to Linux general technology-Linux programming and kernel information. I added the camera driver statically to the kernel (linux-2.6.14.1) and burned it to the Development Board. Start the Board and have v4l entries under/dev. The corresponding software servfox can also work. But after I changed the content in the root file system, the content in bin and lib was not modified (produced by busybox, ramfs), and The v4l in/dev was lost, the corresponding servfox also prompts ERROR opening V4L interface, but cannot run.
What is the reason?
In addition, when I run some commands on the target board, there will be Reading data from NAND FLASH without ECC is not recommended. Why?

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