I'm writing my first serial driver for a UART (AXI UART Lite from
Xilinx). Yes, I know there's one in the kernel but the hardware in this
case isn't embedded.
Using the documentation in <kernel_src>/Documentation/serial/driver and
the existing code for references, I've implemented my driver. However,
I cannot validate the my startup or request_port functions are being
called.
I'm calling uart_register_driver() and then uart_register_port() and I'm
sure these functions are passing. I'm seeing my device handles show in
/dev. The documentation states that the startup() function, "... will
only be called when the port is initially opened." Yet, I'm not seeing
pr_info() messages that I should be. What should I look for in order to
determine why the setup functions aren't being called?
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