On Thu, Aug 24, 2023 at 02:59:01PM -0600, Dan Raymond wrote: > Implement a UART register tracing facility using the debugfs. This can be > used as a "serial port sniffer" to monitor UART traffic and line settings > with timestamps at microsecond granularity. This can be useful for general > serial port debugging or to debug the UART driver itself. > drivers/tty/serial/8250/8250_debug.c | 530 +++++++++++++++++++++++++++ My gosh. Why trace points and trace events can't be used for that? -- With Best Regards, Andy Shevchenko
