There may be multiple ways of controlling the backlight on a given
machine. Allow drivers to expose the type of interface they are
providing, making it possible for userspace to make appropriate policy
decisions.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here's a trivial patch which adds support to the backlight device found
in Samsung R410 Plus laptops.
Signed-off-by: Alberto Mardegan <mardy@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The patch is against the 2.6.37 drivers/staging/samsung-laptop
driver and implements some extra enhancements.
It fixes an issue that the brightness would not change the level at
once as well as and some other oddities. It was resolved by
reallocated the SABI memory reagion using the "nocache" option.
The patch also introduces a new set of supported netbook models,
especially the NC10plus which was used for testing this patch. This new
set of models also offer 9 instead of just 8 brightness levels so it
also introduces an additional parameter for the models struct so that
models can define their own brightness range.
Signed-off-by: Nils Faerber <nils.faerber@kernelconcepts.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fixed up the printk stuff to use pr_XXX where applicable, and reversed
the logic when testing for commands to complete properly.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When doing the conversion to the "support more than one model" the
header address of the N128 was incorrectly copied.
This fixes the driver to work properly now on this laptop model.
Cc: Ingmar Steen <iksteen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Taken from the fork of the driver at:
http://code.google.com/p/easy-slow-down-manager/
which should no longer be needed now that the in-kernel driver now
supports these laptops.
Cc: Kobelkov Sergey <sergeyko81@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Info was provided by Soeren Sonnenburg <bugreports@nn7.de>
Cc: Soeren Sonnenburg <bugreports@nn7.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These were introduced with the patch, "staging: samsung-laptop: Extend
samsung-laptop platform driver to support another flavor of its platform
BIOS."
Cc: Ingmar Steen <iksteen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These were introduced with the patch, "staging: samsung-laptop: Extend
samsung-laptop platform driver to support another flavor of its platform
BIOS."
Cc: Ingmar Steen <iksteen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There are currently two implementations of the Samsung BIOS that controls the rfkill
switch, backlight brightness / power and performance level. The samsung-laptop driver
implements the BIOS flavor with the SECLINUX signature, this patch implements talking
to the other BIOS with 'SwSmi@' signature. Both expose very similar functionality and
way of accessing the commands. The differences are mostly offsets, command identifiers
and some values.
This patch introduces a sabi_config structure that contains information on identifying
and accessing specific SABI flavors.
Signed-off-by: Ingmar Steen <iksteen@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Conflicts:
MAINTAINERS
arch/arm/mach-omap2/pm24xx.c
drivers/scsi/bfa/bfa_fcpim.c
Needed to update to apply fixes for which the old branch was too
outdated.
They should be writable by root, not readable.
Doh, stupid me with the wrong flags.
Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
They should not be writable by any user
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
backlight_device_register has been expecting a const "ops" argument, and using
it as such, since 9905a43b2d. Let's make the
remaining backlight_ops instances const.
Inspired by hunks of the grsecurity patch, updated for newer kernels.
Signed-off-by: Lionel Debroux <lionel_debroux@yahoo.fr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Values such as max_brightness should be set before backlights are
registered, but the current API doesn't allow that. Add a parameter to
backlight_device_register and update drivers to ensure that they
set this correctly.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This is a drive for the Samsung N128 laptop to control the wireless LED
and backlight.
Many thanks to Joey Lee for his help in testing and finding all of my
bugs in the development of this driver, it has been invaluable.
Cc: Joey Lee <jlee@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
