probe kernel.function("reset_buffer_flags").call
{
	printf("%d -> %s (PID: %d)\n", gettimeofday_ms(), probefunc(), pid());
}

probe kernel.function("reset_buffer_flags").return
{
	printf("%d <- %s (PID: %d)\n", gettimeofday_ms(), probefunc(), pid());
}

probe kernel.function("n_tty_read").call
{
	printf("%d -> %s (PID: %d)\n", gettimeofday_ms(), probefunc(), pid());
}

probe kernel.function("n_tty_read").return
{
	printf("%d <- %s (PID: %d, retval: %d)\n", gettimeofday_ms(), probefunc(), pid(), $return)
}