Messages in this thread | | | Subject | RE: [PATCH 2/2] acpi,backlight: MSI S270 laptop support - driver | Date | Thu, 10 Aug 2006 12:15:52 -0400 | From | "Brown, Len" <> |
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>If you look closely you'll see that the patch already adds a new >entry to MAINTAINERS.
Excellent.
>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 platform specific driver together in as few files as possible.
>drivers/char/ > It doesn't even register any character device.
I believe that is okay, and that creating a /dev file isn't a requirement.
>drivers/video/backlight/ > It doesn't just do backlight control.
Perhaps the backlight part should live there.
>drivers/misc/ > Seems to be the last resort for everything that doesn't fit it > otherwise. > >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 platform-dependent 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 >in /sys/class/backlight/s270/.
Excellent.
>I cannot map the "automatic brightness control" feature to the >backlight class driver, that's why I duplicated the brightness stuff >in /proc/acpi/s270/.
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 >"platform" device.
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.
thanks, -Len
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. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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