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From: Johan Hovold <johan@kernel.org>
To: Johan Hovold <johan@kernel.org>
Cc: linux-usb@vger.kernel.org
Subject: [PATCH] USB: serial: console: add support for enabling flow control
Date: Wed,  1 Jul 2020 19:37:22 +0200	[thread overview]
Message-ID: <20200701173722.4536-1-johan@kernel.org> (raw)

Add support for enabling hardware flow control using the 'r' command
line option.

This also avoids a W=1 (-Wunused-but-set-variable) warning.

Signed-off-by: Johan Hovold <johan@kernel.org>
---

Missed this one at first... The white space change is done on purpose to
remove a stray tab.

Johan


 drivers/usb/serial/console.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index 7d289302ff6c..b97aa40ca4d1 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -79,7 +79,7 @@ static int usb_console_setup(struct console *co, char *options)
 		if (*s)
 			doflow = (*s++ == 'r');
 	}
-	
+
 	/* Sane default */
 	if (baud == 0)
 		baud = 9600;
@@ -102,6 +102,9 @@ static int usb_console_setup(struct console *co, char *options)
 		break;
 	}
 
+	if (doflow)
+		cflag |= CRTSCTS;
+
 	/*
 	 * no need to check the index here: if the index is wrong, console
 	 * code won't call us
-- 
2.26.2


             reply	other threads:[~2020-07-01 17:37 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-01 17:37 Johan Hovold [this message]
2020-07-02  7:38 ` [PATCH] USB: serial: console: add support for enabling flow control Greg KH
2020-07-02  8:44   ` Johan Hovold

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