https://bugs.gentoo.org/962830 https://sourceware.org/bugzilla/show_bug.cgi?id=33340#c22 From c24f68c1028b30364acb4ed085de15364fddbcb9 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 10 Sep 2025 17:58:01 -0700 Subject: [PATCH 1/3] linux_termios: clear CIBAUD flags, too In case the serial port was already set up with split speed, using one of the standard speed constants (i.e. not BOTHER) it is necessary to clear CIBAUD to revert back to single speed. Signed-off-by: H. Peter Anvin --- linux_termios.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/linux_termios.c b/linux_termios.c index 3630e5758ae3..0dd0b105726f 100644 --- a/linux_termios.c +++ b/linux_termios.c @@ -86,7 +86,7 @@ SP_PRIV void set_termios_speed(void *data, int speed) #else struct termios *term = (struct termios *) data; #endif - term->c_cflag &= ~CBAUD; + term->c_cflag &= ~(CBAUD | CIBAUD); term->c_cflag |= BOTHER; term->c_ispeed = term->c_ospeed = speed; } -- 2.51.0