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    SubjectRe: [suspend/resume] Re: userspace notification from module
    Date
    On Monday 04 January 2010, Bartłomiej Zimoń wrote:
    > Dnia 4 stycznia 2010 0:45 "Rafael J. Wysocki" <rjw@sisk.pl> napisał(a):
    > > On Monday 04 January 2010, Bartłomiej Zimoń wrote:
    > > > Thx Rafael - now it clear to me.
    > > > And what do You think about sending extra signals to processes?
    > >
    > > I don't see a problem with this in principle, although I don't think signals
    > > are very suitable for this particular purpose, because you need two-way
    > > communication between the power manager and the processes it's going to
    > > notify (because it has to wait for the processes to finish their preparations
    > > and to tell it that they are ready).
    > >
    > > For this purpose it's better to have a file descriptor you can block on (like a
    > > socket or a pipe) while the other side is doing it's job.
    > >
    >
    > So let's create one in power/user.c or use /sys/power/state for this :)

    I don't see a good reason, really.

    Rafael
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