On Thu, 2011-09-01 at 04:17 -0400, Donggeun Kim wrote:
> On 2011년 09월 01일 14:22, Guenter Roeck wrote:
> > On Wed, Aug 31, 2011 at 04:56:58AM -0400, Donggeun Kim wrote:
> >> Signed-off-by: Donggeun Kim <dg77.kim@xxxxxxxxxxx>
> >> Signed-off-by: MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx>
> >> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> >> ---
> [snip]
[ ... ]
> >> + if (data->interrupt_stat & EXYNOS4_TMU_TRIG_LEVEL3_MASK) {
> >> + envp[0] = "TRIG_LEVEL=3";
> >> + sysfs_notify(&data->hwmon_dev->kobj, NULL,
> >> + "temp1_emergency_alarm");
> >> + } else if (data->interrupt_stat & EXYNOS4_TMU_TRIG_LEVEL2_MASK) {
> >> + envp[0] = "TRIG_LEVEL=2";
> >> + sysfs_notify(&data->hwmon_dev->kobj, NULL,
> >> + "temp1_crit_alarm");
> >> + } else if (data->interrupt_stat & EXYNOS4_TMU_TRIG_LEVEL1_MASK) {
> >> + envp[0] = "TRIG_LEVEL=1";
> >> + sysfs_notify(&data->hwmon_dev->kobj, NULL, "temp1_max_alarm");
> >> + } else
> >> + envp[0] = "TRIG_LEVEL=0";
> >> + envp[1] = NULL;
> >> +
> >> + kobject_uevent_env(&data->hwmon_dev->kobj, KOBJ_CHANGE, envp);
> >> +
> > This is the big one. We'll have to decide how to handle this. There is currently
> > no ABI for uevents. If we permit uevents, I think there should be a common ABI,
> > and we should avoid a situation where every driver returns a different set of events.
> >
> If you have the common ABI for uevents in mind, I will follow it.
> If calling 'kobject_uevent_env' is the matter, I consider replacing it
> with koject_uevent function.
>
Problem is that we do not (yet) have such a common ABI for hwmon
drivers.
Yes, I am specifically concerned about the env data - not that I am
opposed to provide such data in general, but it should not be device
specific. Anything device specific will cause a mess going forward, if
and when other drivers introduce other device specific events.
Jean, any input on this discussion ?
Thanks,
Guenter
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