# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1616270609 0
# Node ID 61a8ac93764f9a3ebb40fec2b7bc227459db1e5b
# Parent  1d96f3b4f1550105565b3eefa422c238ef923c2c
serial/serport.c: add important explanatory comment

diff -r 1d96f3b4f155 -r 61a8ac93764f serial/serport.c
--- a/serial/serport.c	Sat Mar 20 19:19:46 2021 +0000
+++ b/serial/serport.c	Sat Mar 20 20:03:29 2021 +0000
@@ -1,3 +1,11 @@
+/*
+ * This module implements the guts of OS-specific serial port handling
+ * for our fc-sim-tools serial back end.  The present version is very
+ * Linux-specific, using Linux-specific <asm/...> header files,
+ * struct termios2 and BOTHER to request arbitrary serial baud rates
+ * outside of POSIX Bxxx rigid set.
+ */
+
 #include <sys/types.h>
 #include <sys/file.h>
 #include <sys/ioctl.h>