I have released version 0.22-20090318 *BETA* of thinkpad-acpi through the sourceforge.net release system. To those wondering, 0.22 has been there for a while already, but I never got around to announcing it here. 0.22 is the last version that supports 2.6.25 and 2.6.26, and it is stable. Patches are available for 2.6.27, 2.6.28 and 2.6.29-rc at: http://sourceforge.net/project/showfiles.php?group_id=117042&package_id=230205 git users can get it directly from tags in: git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git As usual, this release contains a backport of the rfkill subsystem from 2.6.29, as some new code in thinkpad-acpi needs the rfkill_set_default() function. This is a BETA testing version, due to the new backlight brightness level code. Please test it, and report. Only IBM-era ThinkPads should be affected. There are a few high profile changes: 1. Most LEDs are now restricted by default. The explanations are in the documentation, and you can easily unrestrict them in your own kernel build (it is just a matter of configuring thinkpad-acpi to not restrict them at build time). HOWEVER, and I am *serious* about this: if you want to mess with all the LEDs, be my guest (that's why I provided an easy to use way to unrestrict them). But do NOT get a kernel with that feature enabled to anyone that has not explicitly asked for it, and who might have no idea of the possible pitfalls. That means it should NEVER be enabled on any distro kernel. Support for more LEDs (both restricted -- X6 ultrabase, and unrestricted -- the thinkvantage LED :) ) will be added in the future. It was too ugly to ship on this BETA version still, but it exists already. 2. The hotkey enable/disable functionality has been removed, because it basically would break down and cripple the driver if used. That thing does a lot more than just hotkey reporting, it is the whole thinkpad-specific event interface that gets enabled/disabled. If you don't want hotkeys, set the hotkey_mask to 0. The removal will be done in two stages, just in case anything is weird enough to be trying to use hotkey enable/disable commands. And it will log a scary kernel warning, please report to me whatever caused it ASAP if you see a kernel warning dump by thinkpad-acpi. 3. You can now tell the LCD backlight brightness level control driver to dump to the kernel log any attempts to change the brightness, along with the PID of the userspace program doing it. I will extend that to every subdriver later. It is a debug bit and you can enable/disable that at runtime. See the driver documentation for details. 4. EC+CMOS brightness control mode (brightness_mode=3) is gone, and will NOT come back. It is racy and causes no end of trouble with the firmware. EC+CMOS was a mode of operation that was in ibm-acpi when I took it over, so I was relutant to remove it... but it has caused way too much trouble over the years. The modes are now: mode 0 : autodetect. Not implemented yet, fallbacks to whatever mode is the default for a given thinkpad. mode 1 : EC-based. Changes only the EC, and if you reboot or do anything else that causes the BIOS to update the EC, your changes will be forgotten. That MIGHT include pressing the hotkeys, btw. mode 2: UCMS/CMOS. Call the BIOS SMM routines to change the brightness. This is the default for everything Lenovo, and (this is new) for any thinkpad that doesn't define in the ACPI DSDT the name of the EC register for backlight brightness control. This means older thinkpads (like the T2x) are going to switch from mode 3 to mode 2 if brightness_mode is not specified. Please report how well that works for your thinkpad. mode 3: this one is new. It does EC-based control like mode 1, but stores the brightness level to NVRAM manually before suspend and system or driver shutdown (reboot, powerdown, rmmod). It is enabled by default in any _IBM_ thinkpad that defines the EC register for backlight control in the ACPI DSDT. This means almost every non-ancient IBM thinkpad will switch to the new mode 3, including the X31-X41, T40-T43, R50-R52, R50e and R51e. Please report how well that works for your thinkpad. Please use the new brightness debug mode to track down if anything in userspace is calling thinkpad-acpi when you press the brightness hotkeys if the new code doesn't work well for you. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
