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| author | Simon Arlott <simon@octiron.net> | 2023-08-27 20:23:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-09-18 11:14:43 +0200 |
| commit | d8a5c0d6a4b62e320814601b91a25926c2bfb991 (patch) | |
| tree | 8e3559fe673e57f50a650d0f7d32f5c1b37192b8 /Documentation/ABI/testing/sysfs-tty | |
| parent | tty: serial: linflexuart: Fix to check return value of platform_get_irq() in ... (diff) | |
| download | linux-d8a5c0d6a4b62e320814601b91a25926c2bfb991.tar.xz linux-d8a5c0d6a4b62e320814601b91a25926c2bfb991.zip | |
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>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-tty')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-tty | 15 |
1 files 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<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 |