/sys/i386/acpica/acpi_machdep.c - source code clarification needed

Hi!

I'm trying to implement acpi support (I'm interested in s3 level) on 
amd64 platform and now working on porting code from i386.

I'm really missing something why there are apm device creation and 
emulation in acpi_machdep.c?  Is it to provide some apm-compatible way 
to view battery information or it's used (in some hidden way) for some 
other purposes elsewhere?

Also I would like ask some of gurus and acpi developers to let me know
who should contacted with implementation questions -- this may be 
offlist communication :)


x-posted in freebsd-acpi,freebsd-current.

Thanks in advance,
Gaspar Chilingarov