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
next 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200701173722.4536-1-johan@kernel.org \
--to=johan@kernel.org \
--cc=linux-usb@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).