Alexey,
I'm considering writing a sysfs interface for the EC registers, and was
wondering if you would be ok with such a patch (before I start work on it)?
I'd like to expose the registers to userspace, as it is already possible to
access the EC registers in userspace via /dev/ports (and quite a few of us
would like to access them) - however, the problem with doing this is that
ACPI throws quite a few warnings/ errors in dmesg whilst doing this; it would
therefore be far preferable to expose the registers through sysfs, which
would in turn be based on the ec_{read,write} calls, so we don't end up
stepping on ACPI's toes.
So, basically, I'm proposing something like:
/sys/firmware/acpi/ec/ecX
|
|-> 0
|-> 1
|-> 2
|-> etc... (up to 255)
Where each file returns the contents of the EC register in question (via
ec_read()), and writing to the file calls ec_write().
-Carlos
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