Up to now udev events only report the affected hwmon device if an alert
is reported. This requires userspace to read all attributes if it wants
to know what triggered the event. Provide the attribute name with the
NAME property to help userspace find the attribute causing the event.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
int hwmon_notify_event(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel)
{
int hwmon_notify_event(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel)
{
+ char event[MAX_SYSFS_ATTR_NAME_LENGTH + 5];
char sattr[MAX_SYSFS_ATTR_NAME_LENGTH];
char sattr[MAX_SYSFS_ATTR_NAME_LENGTH];
+ char *envp[] = { event, NULL };
const char * const *templates;
const char *template;
int base;
const char * const *templates;
const char *template;
int base;
base = hwmon_attr_base(type);
scnprintf(sattr, MAX_SYSFS_ATTR_NAME_LENGTH, template, base + channel);
base = hwmon_attr_base(type);
scnprintf(sattr, MAX_SYSFS_ATTR_NAME_LENGTH, template, base + channel);
+ scnprintf(event, sizeof(event), "NAME=%s", sattr);
sysfs_notify(&dev->kobj, NULL, sattr);
sysfs_notify(&dev->kobj, NULL, sattr);
- kobject_uevent(&dev->kobj, KOBJ_CHANGE);
+ kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
if (type == hwmon_temp)
hwmon_thermal_notify(dev, channel);
if (type == hwmon_temp)
hwmon_thermal_notify(dev, channel);