diff options
| -rw-r--r-- | Documentation/watchdog/watchdog-kernel-api.txt | 5 | ||||
| -rw-r--r-- | include/linux/watchdog.h | 3 |
2 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/watchdog/watchdog-kernel-api.txt b/Documentation/watchdog/watchdog-kernel-api.txt index 917eeea..92700d2 100644 --- a/Documentation/watchdog/watchdog-kernel-api.txt +++ b/Documentation/watchdog/watchdog-kernel-api.txt @@ -82,8 +82,9 @@ It contains following fields: * max_timeout: the watchdog timer's maximum timeout value (in seconds), as seen from userspace. If set, the maximum configurable value for 'timeout'. Not used if max_hw_heartbeat_ms is non-zero. -* min_hw_heartbeat_ms: Minimum time between heartbeats sent to the chip, - in milli-seconds. +* min_hw_heartbeat_ms: Hardware limit for minimum time between heartbeats, + in milli-seconds. This value is normally 0; it should only be provided + if the hardware can not tolerate lower intervals between heartbeats. * max_hw_heartbeat_ms: Maximum hardware heartbeat, in milli-seconds. If set, the infrastructure will send heartbeats to the watchdog driver if 'timeout' is larger than max_hw_heartbeat_ms, unless WDOG_ACTIVE diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index 6b75e38..7047bc7 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -66,7 +66,8 @@ struct watchdog_ops { * as configurable from user space. Only relevant if * max_hw_heartbeat_ms is not provided. * @min_hw_heartbeat_ms: - * Minimum time between heartbeats, in milli-seconds. + * Hardware limit for minimum time between heartbeats, + * in milli-seconds. * @max_hw_heartbeat_ms: * Hardware limit for maximum timeout, in milli-seconds. * Replaces max_timeout if specified. |
