Re: ACPI+Userspace

Jeremy Moles
2005-06-19T18:19:25Z

Last thing (not trying to spam), here's a simple usage summation:

1. make
2. make install
3. modprobe acpievgen
3. echo "devicename BUSID 1 2" > /proc/acpi/evgen

The event comes back up through the event interface to be parsed by
whatever. The echo doesn't have to be exactly an ACPI event string, but
the arguments get assigned positionally, delimited by spaces.

On Sun, 2005-06-19 at 14:08 -0400, Jeremy Moles wrote:
> Here's the package.
>
> On Sun, 2005-06-19 at 14:05 -0400, Jeremy Moles wrote:
> > Well, spent some time Friday night and went ahead and did it. README
> > included, along with some stuff in the source which may/may not be
> > correct. :/ In particular, the sscanf may be hackish... I do mostly C++
> > and python code, so I'm not that good C string stuff. All comments are
> > welcome.
> >
> > P.S. The Makefile has "make in" and "make out" targets. Any OS that lets
> > you type "make out" at a commandline--and then do something
> > interesting--is just fine by me. :)
> >
> > On Mon, 2005-06-13 at 19:37 -0400, Jeremy Moles wrote:
> > > Hello all--quick question.
> > >
> > > As bad as it may seem, I was wondering if it is possible to generate
> > > ACPI events in userspace? That is: propogate any arbitrary "string" up
> > > through the ACPI subsystem, eventually getting dumped
> > > to /proc/acpi/event which, in our case, is being watched and acted on by
> > > the userspace util ACPID.
> > >
> > > The obvious answer is: "Call /etc/acpi/hander with your string!"--which
> > > is always an option--but I'd like to know if it's possible simply to use
> > > for testing/debugging. I could write a driver supporting ioctls to pass
> > > stuff via acpi_bus_generate_event (I think?), but that's wayyy too much
> > > work for what I'm wanting this for. I'm sure there are reasons this
> > > isn't a good idea, and I'd be glad to hear those too (to increase my
> > > understanding of ACPI!).
> > >
> > > Anyway--thanks ahead of time. Weee.
> > >
> > >
> > >
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