I didn't notice any Italian:-) Applied. thanks, -Len On Thursday 08 February 2007 14:16, malattia@xxxxxxxx wrote: > From: Mattia Dongili <malattia@xxxxxxxx> > > Be consistent with current implementation (backlight subsys and > platform_device). > > Signed-off-by: Mattia Dongili <malattia@xxxxxxxx> > --- > Documentation/acpi/sony_acpi.txt | 87 ------------------------------- > Documentation/sony-laptop.txt | 106 ++++++++++++++++++++++++++++++++++++++ > drivers/misc/Kconfig | 14 +++--- > 3 files changed, 113 insertions(+), 94 deletions(-) > > diff --git a/Documentation/acpi/sony_acpi.txt b/Documentation/acpi/sony_acpi.txt > deleted file mode 100644 > index 35a04be..0000000 > --- a/Documentation/acpi/sony_acpi.txt > +++ /dev/null > @@ -1,87 +0,0 @@ > -ACPI Sony Notebook Control Driver (SNC) Readme > ----------------------------------------------- > - Copyright (C) 2004- 2005 Stelian Pop <stelian@xxxxxxxxxx> > - > -This mini-driver drives the ACPI SNC device present in the > -ACPI BIOS of the Sony Vaio laptops. > - > -It gives access to some extra laptop functionalities. In > -its current form, this driver is mainly useful for controlling the > -screen brightness, but it may do more in the future. > - > -You should probably start by trying the sonypi driver, and try > -sony_acpi only if sonypi doesn't work for you. > - > -Usage: > ------- > - > -Loading the sony_acpi module will create a /proc/acpi/sony/ > -directory populated with a couple of files. > - > -You then read/write integer values from/to those files by using > -standard UNIX tools. > - > -The files are: > - brightness current screen brightness > - brightness_default screen brightness which will be set > - when the laptop will be rebooted > - cdpower power on/off the internal CD drive > - > -Note that some files may be missing if they are not supported > -by your particular laptop model. > - > -Example usage: > - # echo "1" > /proc/acpi/sony/brightness > -sets the lowest screen brightness, > - # echo "8" > /proc/acpi/sony/brightness > -sets the highest screen brightness, > - # cat /proc/acpi/sony/brightness > -retrieves the current screen brightness. > - > -Development: > ------------- > - > -If you want to help with the development of this driver (and > -you are not afraid of any side effects doing strange things with > -your ACPI BIOS could have on your laptop), load the driver and > -pass the option 'debug=1'. > - > -REPEAT: DON'T DO THIS IF YOU DON'T LIKE RISKY BUSINESS. > - > -In your kernel logs you will find the list of all ACPI methods > -the SNC device has on your laptop. You can see the GBRT/SBRT methods > -used to get/set the brightness, but there are others. > - > -I HAVE NO IDEA WHAT THOSE METHODS DO. > - > -The sony_acpi driver creates, for some of those methods (the most > -current ones found on several Vaio models), an entry under > -/proc/acpi/sony/, just like the 'brightness' one. You can create > -other entries corresponding to your own laptop methods by further > -editing the source (see the 'sony_acpi_values' table, and add a new > -structure to this table with your get/set method names). > - > -Your mission, should you accept it, is to try finding out what > -those entries are for, by reading/writing random values from/to those > -files and find out what is the impact on your laptop. > - > -Should you find anything interesting, please report it back to me, > -I will not disavow all knowledge of your actions :) > - > -Bugs/Limitations: > ------------------ > - > -* This driver is not based on official documentation from Sony > - (because there is none), so there is no guarantee this driver > - will work at all, or do the right thing. Although this hasn't > - happened to me, this driver could do very bad things to your > - laptop, including permanent damage. > - > -* The sony_acpi and sonypi drivers do not interact at all. In the > - future, sonypi could use sony_acpi to do (part of) its business. > - > -* spicctrl, which is the userspace tool used to communicate with the > - sonypi driver (through /dev/sonypi) does not try to use the > - sony_acpi driver. In the future, spicctrl could try sonypi first, > - and if it isn't present, try sony_acpi instead. > - > diff --git a/Documentation/sony-laptop.txt b/Documentation/sony-laptop.txt > new file mode 100644 > index 0000000..dfd26df > --- /dev/null > +++ b/Documentation/sony-laptop.txt > @@ -0,0 +1,106 @@ > +Sony Notebook Control Driver (SNC) Readme > +----------------------------------------- > + Copyright (C) 2004- 2005 Stelian Pop <stelian@xxxxxxxxxx> > + Copyright (C) 2007 Mattia Dongili <malattia@xxxxxxxx> > + > +This mini-driver drives the SNC device present in the ACPI BIOS of > +the Sony Vaio laptops. > + > +It gives access to some extra laptop functionalities. In its current > +form, this driver let the user set or query the screen brightness > +through the backlight subsystem and remove/apply power to some devices. > + > +Backlight control: > +------------------ > +If your laptop model supports it, you will find sysfs files in the > +/sys/class/backlight/sony/ > +directory. You will be able to query and set the current screen > +brightness: > + brightness get/set screen brightness (an iteger > + between 0 and 7) > + actual_brightness reading from this file will query the HW > + to get real brightness value > + max_brightness the maximum brightness value > + > + > +Platform specific: > +------------------ > +Loading the sony-laptop module will create a > +/sys/devices/platform/sony-laptop/ > +directory populated with some files. > + > +You then read/write integer values from/to those files by using > +standard UNIX tools. > + > +The files are: > + brightness_default screen brightness which will be set > + when the laptop will be rebooted > + cdpower power on/off the internal CD drive > + audiopower power on/off the internal sound card > + lanpower power on/off the internal ethernet card > + (only in debug mode) > + > +Note that some files may be missing if they are not supported > +by your particular laptop model. > + > +Example usage: > + # echo "1" > /sys/devices/platform/sony-laptop/brightness_default > +sets the lowest screen brightness for the next and later reboots, > + # echo "8" > /sys/devices/platform/sony-laptop/brightness_default > +sets the highest screen brightness for the next and later reboots, > + # cat /sys/devices/platform/sony-laptop/brightness_default > +retrieves the value. > + > + # echo "0" > /sys/devices/platform/sony-laptop/audiopower > +powers off the sound card, > + # echo "1" > /sys/devices/platform/sony-laptop/audiopower > +powers on the sound card. > + > +Development: > +------------ > + > +If you want to help with the development of this driver (and > +you are not afraid of any side effects doing strange things with > +your ACPI BIOS could have on your laptop), load the driver and > +pass the option 'debug=1'. > + > +REPEAT: DON'T DO THIS IF YOU DON'T LIKE RISKY BUSINESS. > + > +In your kernel logs you will find the list of all ACPI methods > +the SNC device has on your laptop. You can see the GCDP/GCDP methods > +used to pwer on/off the CD drive, but there are others. > + > +I HAVE NO IDEA WHAT THOSE METHODS DO. > + > +The sony-laptop driver creates, for some of those methods (the most > +current ones found on several Vaio models), an entry under > +/sys/devices/platform/sony-laptop, just like the 'cdpower' one. > +You can create other entries corresponding to your own laptop methods by > +further editing the source (see the 'sony_acpi_values' table, and add a new > +entry to this table with your get/set method names using the > +HANDLE_NAMES macro). > + > +Your mission, should you accept it, is to try finding out what > +those entries are for, by reading/writing random values from/to those > +files and find out what is the impact on your laptop. > + > +Should you find anything interesting, please report it back to me, > +I will not disavow all knowledge of your actions :) > + > +Bugs/Limitations: > +----------------- > + > +* This driver is not based on official documentation from Sony > + (because there is none), so there is no guarantee this driver > + will work at all, or do the right thing. Although this hasn't > + happened to me, this driver could do very bad things to your > + laptop, including permanent damage. > + > +* The sony-laptop and sonypi drivers do not interact at all. In the > + future, sonypi could use sony-laptop to do (part of) its business. > + > +* spicctrl, which is the userspace tool used to communicate with the > + sonypi driver (through /dev/sonypi) does not try to use the > + sony-laptop driver. In the future, spicctrl could try sonypi first, > + and if it isn't present, try sony-laptop instead. > + > diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig > index 926ae11..8c409dc 100644 > --- a/drivers/misc/Kconfig > +++ b/drivers/misc/Kconfig > @@ -112,14 +112,14 @@ config SONY_LAPTOP > depends on X86 && ACPI > select BACKLIGHT_CLASS_DEVICE > ---help--- > - This mini-driver drives the ACPI SNC device present in the > - ACPI BIOS of the Sony Vaio laptops. > + This mini-driver drives the SNC device present in the ACPI BIOS of > + the Sony Vaio laptops. > > - It gives access to some extra laptop functionalities. In > - its current form, the only thing this driver does is letting > - the user set or query the screen brightness and remove/apply > - power to some devices. > + It gives access to some extra laptop functionalities. In its current > + form, this driver let the user set or query the screen brightness > + through the backlight subsystem and remove/apply power to some > + devices. > > - Read <file:Documentation/acpi/sony_acpi.txt> for more information. > + Read <file:Documentation/sony-laptop.txt> for more information. > > endmenu - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
