commit 7df4378df21c1a95c95f74081a0501c3cd5e87e1
author Chiranjeevi Velempati <cvelempa@codeaurora.org> Wed Aug 17 14:22:33 2011 +0530
committer Bryan Huntsman <bryanh@codeaurora.org> Mon Oct 03 16:15:14 2011 -0700
tree b1e93b1a18e94c2700bef03c9da74dd5a177c787
parent 84f43fdfdd9fb0f896ba5685656a33f2eb101b00

tty: Allow RI, DSR and CTS modem status bits in tiocmset

Allow modem status bits like RI, DSR and CTS in tiocmset. TTY drivers,
for example USB function serial driver, which talks to DCE on behalf
DTE and running in DCE are interested in these bits.

CRs-fixed: 300912
Signed-off-by: Chiranjeevi Velempati <cvelempa@codeaurora.org>

drivers/tty/tty_io.c

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 6556f74..b6aee25 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2515,8 +2515,11 @@
 		clear = ~val;
 		break;
 	}
-	set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
-	clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+
+	set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP|TIOCM_CD|
+		TIOCM_RI|TIOCM_DSR|TIOCM_CTS;
+	clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP|TIOCM_CD|
+		TIOCM_RI|TIOCM_DSR|TIOCM_CTS;
 	return tty->ops->tiocmset(tty, set, clear);
 }