2.6.25-rc7

 Documentation

diff --git a/Documentation/sonypi.txt b/Documentation/sonypi.txt
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-Sony Programmable I/O Control Device Driver Readme
---------------------------------------------------
-   Copyright (C) 2001-2004 Stelian Pop <stelian@popies.net>
-   Copyright (C) 2001-2002 Alcôve <www.alcove.com>
-   Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
-   Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
-   Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
-   Copyright (C) 2000 Andrew Tridgell <tridge@samba.org>
-
-This driver enables access to the Sony Programmable I/O Control Device which
-can be found in many Sony Vaio laptops. Some newer Sony laptops (seems to be
-limited to new FX series laptops, at least the FX501 and the FX702) lack a
-sonypi device and are not supported at all by this driver.
-
-It will give access (through a user space utility) to some events those laptops
-generate, like:
-   - jogdial events (the small wheel on the side of Vaios)
-   - capture button events (only on Vaio Picturebook series)
-   - Fn keys
-   - bluetooth button (only on C1VR model)
-   - programmable keys, back, help, zoom, thumbphrase buttons, etc.
-     (when available)
-
-Those events (see linux/sonypi.h) can be polled using the character device node
-/dev/sonypi (major 10, minor auto allocated or specified as a option).
-A simple daemon which translates the jogdial movements into mouse wheel events
-can be downloaded at: <http://popies.net/sonypi/>
-
-Another option to intercept the events is to get them directly through the
-input layer.
-
-This driver supports also some ioctl commands for setting the LCD screen
-brightness and querying the batteries charge information (some more
-commands may be added in the future).
-
-This driver can also be used to set the camera controls on Picturebook series
-(brightness, contrast etc), and is used by the video4linux driver for the
-Motion Eye camera.
-
-Please note that this driver was created by reverse engineering the Windows
-driver and the ACPI BIOS, because Sony doesn't agree to release any programming
-specs for its laptops. If someone convinces them to do so, drop me a note.
-
-Driver options:
----------------
-
-Several options can be passed to the sonypi driver using the standard
-module argument syntax (<param>=<value> when passing the option to the
-module or sonypi.<param>=<value> on the kernel boot line when sonypi is
-statically linked into the kernel). Those options are:
-
-   minor:       minor number of the misc device /dev/sonypi,
-         default is -1 (automatic allocation, see /proc/misc
-         or kernel logs)
-
-   camera:      if you have a PictureBook series Vaio (with the
-         integrated MotionEye camera), set this parameter to 1
-         in order to let the driver access to the camera
-
-   fnkeyinit:   on some Vaios (C1VE, C1VR etc), the Fn key events don't
-         get enabled unless you set this parameter to 1.
-         Do not use this option unless it's actually necessary,
-         some Vaio models don't deal well with this option.
-         This option is available only if the kernel is
-         compiled without ACPI support (since it conflicts
-         with it and it shouldn't be required anyway if
-         ACPI is already enabled).
-
-   verbose:   set to 1 to print unknown events received from the
-         sonypi device.
-         set to 2 to print all events received from the
-         sonypi device.
-
-   compat:      uses some compatibility code for enabling the sonypi
-         events. If the driver worked for you in the past
-         (prior to version 1.5) and does not work anymore,
-         add this option and report to the author.
-
-   mask:      event mask telling the driver what events will be
-         reported to the user. This parameter is required for
-         some Vaio models where the hardware reuses values
-         used in other Vaio models (like the FX series who does
-         not have a jogdial but reuses the jogdial events for
-         programmable keys events). The default event mask is
-         set to 0xffffffff, meaning that all possible events
-         will be tried. You can use the following bits to
-         construct your own event mask (from
-         drivers/char/sonypi.h):
-            SONYPI_JOGGER_MASK       0x0001
-            SONYPI_CAPTURE_MASK       0x0002
-            SONYPI_FNKEY_MASK       0x0004
-            SONYPI_BLUETOOTH_MASK       0x0008
-            SONYPI_PKEY_MASK       0x0010
-            SONYPI_BACK_MASK       0x0020
-            SONYPI_HELP_MASK       0x0040
-            SONYPI_LID_MASK       0x0080
-            SONYPI_ZOOM_MASK       0x0100
-            SONYPI_THUMBPHRASE_MASK    0x0200
-            SONYPI_MEYE_MASK      0x0400
-            SONYPI_MEMORYSTICK_MASK      0x0800
-            SONYPI_BATTERY_MASK      0x1000
-            SONYPI_WIRELESS_MASK      0x2000
-
-   useinput:   if set (which is the default) two input devices are
-         created, one which interprets the jogdial events as
-         mouse events, the other one which acts like a
-         keyboard reporting the pressing of the special keys.
-
-Module use:
------------
-
-In order to automatically load the sonypi module on use, you can put those
-lines in your /etc/modprobe.conf file:
-
-   alias char-major-10-250 sonypi
-   options sonypi minor=250
-
-This supposes the use of minor 250 for the sonypi device:
-
-   # mknod /dev/sonypi c 10 250
-
-Bugs:
------
-
-   - several users reported that this driver disables the BIOS-managed
-     Fn-keys which put the laptop in sleeping state, or switch the
-     external monitor on/off. There is no workaround yet, since this
-     driver disables all APM management for those keys, by enabling the
-     ACPI management (and the ACPI core stuff is not complete yet). If
-     you have one of those laptops with working Fn keys and want to
-     continue to use them, don't use this driver.
-
-   - some users reported that the laptop speed is lower (dhrystone
-     tested) when using the driver with the fnkeyinit parameter. I cannot
-     reproduce it on my laptop and not all users have this problem.
-     This happens because the fnkeyinit parameter enables the ACPI
-     mode (but without additional ACPI control, like processor
-     speed handling etc). Use ACPI instead of APM if it works on your
-     laptop.
-
-   - sonypi lacks the ability to distinguish between certain key
-     events on some models.
-
-   - some models with the nvidia card (geforce go 6200 tc) uses a
-     different way to adjust the backlighting of the screen. There
-     is a userspace utility to adjust the brightness on those models,
-     which can be downloaded from
-     http://www.acc.umu.se/~erikw/program/smartdimmer-0.1.tar.bz2
-
-   - since all development was done by reverse engineering, there is
-     _absolutely no guarantee_ that this driver will not crash your
-     laptop. Permanently.