RE: [PATCH 2/2] acpi,backlight: MSI S270 laptop support - driver
From: Brown, Len
Date: Thu Aug 10 2006 - 12:13:58 EST
>If you look closely you'll see that the patch already adds a new
>entry to MAINTAINERS.
>I put the the driver in drivers/acpi/ because it relies heavily on the
>ACPI EC stuff. But OK, what is a better place for the driver?
It is possible that parts of it should live in different places,
but I agree that it is also desireable to keep the compnents of a
specific driver together in as few files as possible.
> It doesn't even register any character device.
I believe that is okay, and that creating a /dev file isn't a
> It doesn't just do backlight control.
Perhaps the backlight part should live there.
> Seems to be the last resort for everything that doesn't fit it
>Unless anyone has a better idea I will move it to drivers/misc/, then.
Yeah, there is probably a better place than misc.
The only thing I can say for sure is that it implements
features rather than standard features in the ACPI spec,
and thus it must live outside of drivers/acpi/.
>> lcd brightness platform support should talk to the existing
>> backlight stuff under sysfs.
>It already does exactly that, you can find the backlight class driver
>I cannot map the "automatic brightness control" feature to the
>backlight class driver, that's why I duplicated the brightness stuff
Better to extend the backlight code so that it can handle the
special features of this platform than to duplicate brightness
control in multiple places.
>> wlan and bluetooth indicators/controls need to appear under
>> generic places under sysfs -- not under platform specific
>> files under /proc/acpi.
>What are those "generic" places? I cannot think of any besides a
They should appear as properties under their associated
devices in /sys/devices tree rather than invening a new place.
>Any ideas on that ec_transaction() patch I sent earlier?
I agree 100% that ec.c needs to be whacked. Unfortunately
there seem to be 3 people doing it at the same time,
so we'll have to sort that out.
ps. Lennart, please understand that I didn't intend to be gruff.
I figured that by the quality of your work -- which is better than most
that I'd go for an immediate reply, even though I was still holding a
sharp pointed stick at the end of a 6-hour bug scrub marathon.
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