Re: [PATCH 2/2] acpi,backlight: MSI S270 laptop support - driver

On Thu, 10.08.06 05:36, Brown, Len (len.brown@xxxxxxxxx) wrote:

Lennart,

Hi!


Your s270 platform driver needs a different home in the source tree
outside of drivers/acpi/, and the patch that adds it must add an entry
to MAINTAINERS.

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?

drivers/char/
It doesn't even register any character device.

drivers/video/backlight/
It doesn't just do backlight control.

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.

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/.

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/.

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.

Yes, the existing platform specific drivers such as asus, toshiba, and
ibm
are bad examples.

Ok, I will move the /proc/acpi/s270/ stuff to a sysfs platform device,
then. I will cook up another patch shortly.

Any ideas on that ec_transaction() patch I sent earlier?

Lennart

--
Lennart Poettering; lennart [at] poettering [dot] net
ICQ# 11060553; GPG 0x1A015CC4; http://0pointer.net/lennart/
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