Am Sonntag, den 18.04.2010, 21:21 +0200 schrieb Corentin Chary: > On Sat, Apr 17, 2010 at 5:37 PM, Florian Echtler <floe@xxxxxxxxxxxxxx> wrote: > > I've just bought an Ideapad S10-3t, and most features including ACPI > > work fine. However, since neither thinkpad-acpi nor lenovo-sl-laptop > > support this device, I've been looking around for some hints on how to > > access the embedded controller in order to get the hotkeys working. I'll > > post what I've found so far and hope that somebody could give me some > > hints as to how to proceed. > > First, I've dumped the DSDT and browsed through it. I've found a _WDT > > section, and wmidump shows: > Wow, someone actually used that tool ^^ > A Quick hint would be to look at > https://patchwork.kernel.org/patch/87210/ which is basically a really > short example of what a wmi-driver is. > Just change the guid, buid/load, push some hotkeys, see dmesg, edit > the keymap, build, load, test .. Thanks for the pointer - I've given it a quick try and the driver loads successfully, however, the event doesn't seem to be triggered. I've put a printk into the eeepc_wmi_notify function, and this is seemingly never called.. although I believe this may be the right direction, as the GUID from the eeepc driver (ABBC0F72-8EA1-11D1-00A0-C90629100000) and the one from my Lenovo (ABBC0F20-8EA1-11D1-00A0-C90629100000) differ only by a single byte. Could this event be disabled somehow? > > ABBC0F20-8EA1-11D1-00A0-C90629100000: > > object_id: � > > notify_id: 80 > > reserved: 00 > > instance_count: 1 > > flags: 0x8 ACPI_WMI_EVENT > > ABBC0F40-8EA1-11D1-00A0-C90629100000: > > object_id: IO > > notify_id: 49 > > reserved: 4F > > instance_count: 1 > > flags: 0x1 ACPI_WMI_EXPENSIVE > > 05901221-D566-11D1-B2F0-00A0C9062910: > > object_id: AE > > notify_id: 41 > > reserved: 45 > > instance_count: 1 > > flags: 0 Corresponding to the 2nd GUID, there's also a WQIO method in my DSDT which should return a data block, correct? > > As this laptop also runs some kind of Splashtop instant-on Linux called > > Lenovo Quickstart, I've decided to extract the initrd from its kernel > > (*) and browse through the modules. Interestingly, I've found a > > lenovo_ec.ko: strings shows that it accesses some DSDT elements which > > are present on the S10-3t. Would it make sense to disassemble this? > You can also try to see if the manufacturer give some sources or ask them to ... I've done that, let's see if I will get some response. Florian -- 0666 - Filemode of the Beast -- 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
