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2023-02-18watchdog: report options in sysfsThomas Weißschuh1-0/+6
This synchronizes the information reported by ioctl and sysfs. The mismatch is confusing because "wdctl" from util-linux uses the ioctl when used with root privileges and sysfs without. Signed-off-by: Thomas Weißschuh <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] [groeck: Fixed continuation line alignment] Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2023-02-18watchdog: report fw_version in sysfsThomas Weißschuh1-0/+7
This synchronizes the information reported by ioctl and sysfs. The mismatch is confusing because "wdctl" from util-linux uses the ioctl when used with root privileges and sysfs without. The file is called "fw_version" instead of "firmware_version" as "firmware_version" is already used as custom attribute by single drivers. Signed-off-by: Thomas Weißschuh <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2020-10-30docs: ABI: cleanup several ABI documentsMauro Carvalho Chehab1-2/+5
There are some ABI documents that, while they don't generate any warnings, they have issues when parsed by get_abi.pl script on its output result. Address them, in order to provide a clean output. Reviewed-by: Tom Rix <[email protected]> # for fpga-manager Reviewed-By: Kajol Jain<[email protected]> # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7 Acked-by: Jonathan Cameron <[email protected]> #for IIO Acked-by: Oded Gabbay <[email protected]> # for Habanalabs Acked-by: Vaibhav Jain <[email protected]> # for sysfs-bus-papr-pmem Acked-by: Cezary Rojewski <[email protected]> # for catpt Acked-by: Suzuki K Poulose <[email protected]> Acked-by: Ilya Dryomov <[email protected]> # for rbd Acked-by: Jonathan Corbet <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-18watchdog: make nowayout sysfs file writableRasmus Villemoes1-2/+7
It can be useful to delay setting the nowayout feature for a watchdog device. Moreover, not every driver (notably gpio_wdt) implements a nowayout module parameter/otherwise respects CONFIG_WATCHDOG_NOWAYOUT, and modifying those drivers carries a risk of causing a regression for someone who has two watchdog devices, sets CONFIG_WATCHDOG_NOWAYOUT and somehow relies on the gpio_wdt driver being ignorant of that (i.e., allowing one to gracefully close a gpio_wdt but not the other watchdog in the system). So instead, simply make the nowayout sysfs file writable. Obviously, setting nowayout is a one-way street. Signed-off-by: Rasmus Villemoes <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2019-09-17watchdog: apseed: Add access_cs0 option for alt-bootIvan Mikhaylov1-0/+34
The option for the ast2400/2500 to get access to CS0 at runtime. Signed-off-by: Ivan Mikhaylov <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2019-03-02watchdog: Update sysfs documentation.Jerry Hoemann1-0/+23
Document the sysfs attributes: pretimeout pretimeout_available_governors pretimeout_governor Signed-off-by: Jerry Hoemann <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2015-12-27watchdog: Read device status through sysfs attributesPratyush Anand1-0/+51
This patch adds following attributes to watchdog device's sysfs interface to read its different status. * state - reads whether device is active or not * identity - reads Watchdog device's identity string. * timeout - reads current timeout. * timeleft - reads timeleft before watchdog generates a reset * bootstatus - reads status of the watchdog device at boot * status - reads watchdog device's internal status bits * nowayout - reads whether nowayout feature was set or not Testing with iTCO_wdt: # cd /sys/class/watchdog/watchdog1/ # ls bootstatus dev device identity nowayout power state subsystem timeleft timeout uevent # cat identity iTCO_wdt # cat timeout 30 # cat state inactive # echo > /dev/watchdog1 # cat timeleft 26 # cat state active # cat bootstatus 0 # cat nowayout 0 Signed-off-by: Pratyush Anand <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>