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docs: ABI: sysfs-tty: close times are in centiseconds 

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 <simon@octiron.net>
Link: https://lore.kernel.org/r/30fa035a-709f-58cd-fc1e-fef1367dc6dd@0882a8b5-c6c3-11e9-b005-00805fc181fe.uuid.home.arpa
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Simon Arlott 2023-08-27 19:23:39 +01:00 committed by Greg Kroah-Hartman
parent 4e8da86fc1
commit d8a5c0d6a4
1 changed files with 9 additions and 6 deletions
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15
Documentation/ABI/testing/sysfs-tty
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@ -87,19 +87,22 @@ What: /sys/class/tty/ttyS<x>/close_delay
Date: October 2012
Contact: Alan Cox <alan@linux.intel.com>
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<x>/closing_wait
Date: October 2012
Contact: Alan Cox <alan@linux.intel.com>
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<x>/custom_divisor
Date: October 2012