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t=1693160622; b=WcSQfzUwB3bUzrIds1MFcqXOEr6tGSjvefGBhOwD1Uq5mUEPMKow7fyBRfAVxR0EJo9OgmW5QUk YYwZ9LUkfAg==; Received: by tsort.uuid.uk with esmtps (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_128_GCM:128) (Exim 4.93) (envelope-from ) id 1qaKQF-005zuY-UE; Sun, 27 Aug 2023 19:23:40 +0100 Message-ID: <30fa035a-709f-58cd-fc1e-fef1367dc6dd@0882a8b5-c6c3-11e9-b005-00805fc181fe.uuid.home.arpa> Date: Sun, 27 Aug 2023 19:23:39 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: [PATCH (v2)] docs: ABI: sysfs-tty: close times are in centiseconds Content-Language: en-GB To: Jiri Slaby , Oliver Neukum , Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-serial@vger.kernel.org References: <40c5c70f-46ff-c5f3-212b-2badc47e49a3@0882a8b5-c6c3-11e9-b005-00805fc181fe.uuid.home.arpa> <27304225-c8b0-9cac-94a3-e985e45aa41a@0882a8b5-c6c3-11e9-b005-00805fc181fe.uuid.home.arpa> <2a3647bf-91a8-7a5f-9edb-c792a6031f57@kernel.org> From: Simon Arlott X-Face: -|Y&Xues/.'(7\@`_\lFE/)pw"7..-Ur1^@pRL`Nad5a()6r+Y)18-pi'!`GI/zGn>6a6ik mcW-%sg_wM:4PXDw:(; Uu,n&!8=; A Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org The times for close_delay and closing_wait are in centiseconds, not milliseconds. Fix the documentation and add details of special values. Signed-off-by: Simon Arlott --- On 25/08/2023 06:33, Jiri Slaby wrote: > And I would use "centiseconds" instead, which is used (IMO) in these cases. It's used in a few places, but the documentation has no "centiseconds" and a couple of "hundredths". I've changed it anyway. Documentation/ABI/testing/sysfs-tty | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-tty b/Documentation/ABI/testing/sysfs-tty index 820e412d38a8..895c47f05f6f 100644 --- a/Documentation/ABI/testing/sysfs-tty +++ b/Documentation/ABI/testing/sysfs-tty @@ -87,19 +87,22 @@ What: /sys/class/tty/ttyS/close_delay Date: October 2012 Contact: Alan Cox Description: - Show the closing delay time for this port in ms. + Show the closing delay time for this port in centiseconds. - These sysfs values expose the TIOCGSERIAL interface via - sysfs rather than via ioctls. + These sysfs values expose the TIOCGSERIAL interface via + sysfs rather than via ioctls. What: /sys/class/tty/ttyS/closing_wait Date: October 2012 Contact: Alan Cox Description: - Show the close wait time for this port in ms. + Show the close wait time for this port in centiseconds. - These sysfs values expose the TIOCGSERIAL interface via - sysfs rather than via ioctls. + Waiting forever is represented as 0. If waiting on close is + disabled then the value is 65535. + + These sysfs values expose the TIOCGSERIAL interface via + sysfs rather than via ioctls. What: /sys/class/tty/ttyS/custom_divisor Date: October 2012