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| author | Karel Zak | 2019-06-06 11:17:13 +0200 |
|---|---|---|
| committer | Karel Zak | 2019-06-17 15:47:39 +0200 |
| commit | b3dd29d1b878865102c5cb366dd3e814ce043cb9 (patch) | |
| tree | 46d32f2850fd0b0b14a3f23cdfc12c642a29d2dd /sys-utils/wdctl.8 | |
| parent | lib/path: make sure ul_path_read_buffer() derminate result (diff) | |
| download | kernel-qcow2-util-linux-b3dd29d1b878865102c5cb366dd3e814ce043cb9.tar.gz kernel-qcow2-util-linux-b3dd29d1b878865102c5cb366dd3e814ce043cb9.tar.xz kernel-qcow2-util-linux-b3dd29d1b878865102c5cb366dd3e814ce043cb9.zip | |
wdctl; read from /sys if necessary
The device can be inaccessible for non-root user or busy (already used
by another process). In this case it seems better to read information
from /sys.
Note that /sys does not provide struct watchdog_info.options, so we
cannot print list of supported watchdog features.
Addresses: https://github.com/karelzak/util-linux/issues/804
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'sys-utils/wdctl.8')
| -rw-r--r-- | sys-utils/wdctl.8 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys-utils/wdctl.8 b/sys-utils/wdctl.8 index 7edf80866..efd8b5917 100644 --- a/sys-utils/wdctl.8 +++ b/sys-utils/wdctl.8 @@ -14,6 +14,10 @@ Show hardware watchdog status. The default device is If more than one device is specified then the output is separated by one blank line. .PP +If the device is already used or user has no permissions to read from the device than +.B wdctl +reads data from sysfs. In this case information about supported features (flags) might be missing. +.PP Note that the number of supported watchdog features is hardware specific. .SH OPTIONS .TP |