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  1. #1

    how to know the source code corresponding to the driver

    for example, i find a 16550A uart driver in the /proc/tty/drivers , but how do i know where the source code in the kernel source tree?
    there are a lot of 8250 related uart driver, but seems no 16550

  2. #2

    grep in char device driver dirs

    are u sure that you did not check /usr/src/linux- . I can see the support for 16450/16550 UART
    Hope it helps

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