From: Henrique de Moraes Holschuh Date: Sat, 16 Feb 2008 04:17:58 +0000 (-0200) Subject: ACPI: thinkpad-acpi: add tablet-mode reporting X-Git-Tag: v2.6.25-rc3~95^2^7 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c231bd5eb07ce546517019f334652b9ecfc329a;p=pandora-kernel.git ACPI: thinkpad-acpi: add tablet-mode reporting A quick study of the 0x5009/0x500A HKEY event on the X61t DSDT revealed the existence of the EC HTAB register (EC 0x0f, bit 7), and a compare with the X41t DSDT shows that HKEY.MHKG can be used to verify if the ThinkPad is tablet-capable (MHKG present), and in tablet mode (bit 3 of MHKG return is set). Add an attribute to report this information, "hotkey_tablet_mode". This attribute has poll()/select() support, and can be used along with EV_SW SW_TABLET_MODE to hook userspace to tablet events. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Len Brown --- Reading git-diff-tree failed