--- /dev/null
+From 3467c3c354263b066ad47bddfe6eb869c0111e0d Mon Sep 17 00:00:00 2001
+From: Damian Wrobel <dwrobel@ertelnet.rybnik.pl>
+Date: Tue, 24 Jan 2023 10:19:16 +0100
+Subject: [PATCH] Fix rs232_set_* prototypes mismatch
+
+Fixes compilation error on gcc 13 (excerpt):
+ rs232_posix.c:490:1: error: conflicting types for 'rs232_set_baud' \
+ due to enum/integer mismatch; have 'unsigned int(struct rs232_port_t *, \
+ enum rs232_baud_e)' [-Werror=enum-int-mismatch]
+ 490 | rs232_set_baud(struct rs232_port_t *p, enum rs232_baud_e baud)
+ | ^~~~~~~~~~~~~~
+ In file included from rs232_posix.c:39:
+ ../include/librs232/rs232.h:203:24: note: previous declaration of \
+ 'rs232_set_baud' with type 'unsigned int(struct rs232_port_t *, unsigned int)'
+ 203 | RS232_LIB unsigned int rs232_set_baud(struct rs232_port_t *p, unsigned int baud);
+ | ^~~~~~~~~~~~~~
+
+ rs232_posix.c:591:1: error: conflicting types for 'rs232_set_dtr' \
+ due to enum/integer mismatch; have 'unsigned int(struct rs232_port_t *, \
+ enum rs232_dtr_e)' [-Werror=enum-int-mismatch]
+ 591 | rs232_set_dtr(struct rs232_port_t *p, enum rs232_dtr_e state)
+ | ^~~~~~~~~~~~~
+ In file included from rs232_posix.c:39:
+ ../include/librs232/rs232.h:208:24: note: previous declaration of 'rs232_set_dtr' \
+ with type 'unsigned int(struct rs232_port_t *, unsigned int)'
+ 208 | RS232_LIB unsigned int rs232_set_dtr(struct rs232_port_t *p, unsigned int dtr);
+ | ^~~~~~~~~~~~~
+
+Signed-off-by: Damian Wrobel <dwrobel@ertelnet.rybnik.pl>
+---
+ include/librs232/rs232.h | 14 +++++++-------
+ 1 file changed, 7 insertions(+), 7 deletions(-)
+
+--- a/include/librs232/rs232.h
++++ b/include/librs232/rs232.h
+@@ -200,13 +200,13 @@ RS232_LIB unsigned int rs232_port_open(s
+ RS232_LIB unsigned int rs232_close(struct rs232_port_t *p);
+ RS232_LIB unsigned int rs232_flush(struct rs232_port_t *p);
+ RS232_LIB void rs232_set_device(struct rs232_port_t *p, const char *device);
+-RS232_LIB unsigned int rs232_set_baud(struct rs232_port_t *p, unsigned int baud);
+-RS232_LIB unsigned int rs232_set_stop(struct rs232_port_t *p, unsigned int stop);
+-RS232_LIB unsigned int rs232_set_data(struct rs232_port_t *p, unsigned int data);
+-RS232_LIB unsigned int rs232_set_parity(struct rs232_port_t *p, unsigned int parity);
+-RS232_LIB unsigned int rs232_set_flow(struct rs232_port_t *p, unsigned int flow);
+-RS232_LIB unsigned int rs232_set_dtr(struct rs232_port_t *p, unsigned int dtr);
+-RS232_LIB unsigned int rs232_set_rts(struct rs232_port_t *p, unsigned int rts);
++RS232_LIB unsigned int rs232_set_baud(struct rs232_port_t *p, enum rs232_baud_e baud);
++RS232_LIB unsigned int rs232_set_stop(struct rs232_port_t *p, enum rs232_stop_e stop);
++RS232_LIB unsigned int rs232_set_data(struct rs232_port_t *p, enum rs232_data_e data);
++RS232_LIB unsigned int rs232_set_parity(struct rs232_port_t *p, enum rs232_parity_e parity);
++RS232_LIB unsigned int rs232_set_flow(struct rs232_port_t *p, enum rs232_flow_e flow);
++RS232_LIB unsigned int rs232_set_dtr(struct rs232_port_t *p, enum rs232_dtr_e state);
++RS232_LIB unsigned int rs232_set_rts(struct rs232_port_t *p, enum rs232_rts_e state);
+ RS232_LIB const char * rs232_get_device(struct rs232_port_t *p);
+ RS232_LIB unsigned int rs232_get_baud(struct rs232_port_t *p);
+ RS232_LIB unsigned int rs232_get_stop(struct rs232_port_t *p);