Pavel Machek wrote:
> Hi!
>
>> Fastpoweroff allows a user to power down the system without using rc kill
>> scripts. This is used in the advent of a battery operated device about to lose
>> power. The user interface is vis sysfs /sys/power/fastpoweroff. A simple cat of
>> the fastpoweroff will list any registered profiles. To invoke
>> the profile sequence, echo {profile name} > /sys/power/fastpoweroff.
>
> No, we do not want "poweroff profiles" in kernel. Sorry.
No need to be.
>
> rc kill scripts should be fast enough, if not, fix them. If it is
> impossible (time is spent in kernel waiting for network card to shut
> off), fix that.
>
> What you want is pretty much "echo b > ..../sysrq; halt --now".
The one draw back is that Magic sysrq needs to be enabled and it might
not be desired in a deployed system. "echo u " is more of what I was
looking for.
Thanks for you time.
Armin
