From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>, Jonathan Corbet <corbet@lwn.net>,
Peter Hurley <peter@hurleysoftware.com>,
Russell King <rmk@arm.linux.org.uk>
Cc: linux-serial@vger.kernel.org, linux-doc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 2/4] serial: doc: .(un)throttle() depends on hardware assisted flow control
Date: Thu, 14 Apr 2016 11:08:09 +0200 [thread overview]
Message-ID: <1460624891-8389-3-git-send-email-geert+renesas@glider.be> (raw)
In-Reply-To: <1460624891-8389-1-git-send-email-geert+renesas@glider.be>
Document that .throttle() and .unthrottle() are relevant only if
hardware assisted flow control is enabled.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Documentation/serial/driver | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 03369d076ca20a98..03b703cf93182216 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -135,6 +135,7 @@ hardware.
Notify the serial driver that input buffers for the line discipline are
close to full, and it should somehow signal that no more characters
should be sent to the serial port.
+ This will be called only if hardware assisted flow control is enabled.
Locking: none.
@@ -142,6 +143,7 @@ hardware.
Notify the serial driver that characters can now be sent to the serial
port without fear of overrunning the input buffers of the line
disciplines.
+ This will be called only if hardware assisted flow control is enabled.
Locking: none.
--
1.9.1
next prev parent reply other threads:[~2016-04-14 9:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 9:08 [PATCH 0/4] serial: doc: Low Level Serial API Documentation Improvements (take two) Geert Uytterhoeven
2016-04-14 9:08 ` [PATCH 1/4] serial: doc: Re-add paragraph documenting uart_console_write() Geert Uytterhoeven
2016-04-14 9:08 ` Geert Uytterhoeven [this message]
2016-04-14 9:08 ` [PATCH 3/4] serial: doc: .(un)throttle() are serialized by the tty layer Geert Uytterhoeven
2016-04-14 9:08 ` [PATCH 4/4] serial: doc: .break_ctl() may sleep Geert Uytterhoeven
2016-04-15 22:01 ` Jonathan Corbet
2016-04-15 22:31 ` Peter Hurley
2016-04-15 22:41 ` Jonathan Corbet
2016-04-15 23:07 ` Peter Hurley
2016-04-16 16:47 ` Jonathan Corbet
2016-04-18 8:24 ` Geert Uytterhoeven
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