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    SubjectRe: [evlog-dev] Re: alternate event logging proposal
    Jeff Garzik wrote:
    > Chris Friesen wrote:
    > > Also related is "how can userspace be notified of kernel events?". There
    > > is no way for a userspace app to be notified that, for instance, an ATM
    > > device got a loss of signal. The drivers print it out, but the
    > > userspace app has no clue.
    > (sorry for the second reply)
    > To address your more general point, a general way to notify interested,
    > credentialed (is that a word?) 3rd party processes of device events
    > would indeed be useful. Since such events are essential out-of-band
    > info, netlink might indeed be applicable.

    Event Logging has both a command and an API for apps in user-space to
    register for specific events (kernel or userspace). The user must have
    read access to the log file and the proper credentials in the allow/deny
    file scheme (that's modeled after crontab).

    Larry Kessler
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