From: Alan Cox <alan@redhat.com>
Date: Fri, 17 Oct 2008 19:28:25 +0000 (+0100)
Subject: epca: Add infinite break support
X-Git-Tag: v2.6.28-rc1~94
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=252883e512c6d8fbc03b6738f1620fda44c4d472;p=linux-2.6-omap-h63xx.git

epca: Add infinite break support

The EPCA can support indefinte break lengths and with info from digi that
can now be added

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 4998b2761e8..cf2461d34e5 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -2477,7 +2477,11 @@ static int pc_send_break(struct tty_struct *tty, int msec)
 	unsigned long flags;
 
 	if (msec == -1)
-		return -EOPNOTSUPP;
+		msec = 0xFFFF;
+	else if (msec > 0xFFFE)
+		msec = 0xFFFE;
+	else if (msec < 1)
+		msec = 1;
 
 	spin_lock_irqsave(&epca_lock, flags);
 	globalwinon(ch);