On Thu, 2007-01-04 at 13:28 -0800, Andrew Morton wrote:

On Thu, 4 Jan 2007 22:18:30 +0100
Mattia Dongili [off-list ref] wrote:

quoted

quoted

The place to start (please) is the patches in -mm:

2.6-sony_acpi4.patch
sony_apci-resume.patch
sony_apci-resume-fix.patch
acpi-add-backlight-support-to-the-sony_acpi.patch
acpi-add-backlight-support-to-the-sony_acpi-v2.patch
video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register-sony_acpi-fix.patch

It presently has both the /proc and /sys/.../backlight/.. interfaces, so the first
job would be to chop out the /proc stuff.

Ok, I'll import all of them and start from there.
Is it ok to wipe all the /proc stuff without notice?

spose so.  I don't know if any apps are dependent upon the /proc file,
but the driver isn't in mainline yet so it's unlikely that there's a
mountain of software depending upon existing interfaces.

Well, HAL has used it for changing the brightness for the last year or
so: /proc/acpi/sony/brightness

Although if you use a new enough HAL (CVS), the laptop will be supported
via the shiny new backlight class.

Richard.