| commit | 5776fe24e640d8e385bac21f91835768084cc24c | |
| author | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | |
| Fri, 4 Dec 2009 11:13:11 +0000 (4 09:13 -0200) | ||
| committer | Henrique de Moraes Holschuh <hmh@hmh.eng.br> | |
| Fri, 4 Dec 2009 11:13:11 +0000 (4 09:13 -0200) | ||
| tree | 8df6ca11cfea6cd1089470697526a49ae56a92fd | treesnapshot (tar.gz zip) |
| parent | 0fee9e8251ca9d077da140355e7e2665be26d0ff | commitdiff |
thinkpad-acpi: report brightness events when required
Report KEY_BRIGHTNESSUP and KEY_BRIGHTNESSDOWN input events when the
ThinkPad is in "passive brightness control" mode (because either we or
ACPI video touched _BCL), and ACPI video is not processing these
events by itself.
This happens only on Lenovo ThinkPads with ACPI video support, when
operating with the ACPI video driver in acpi_backlight=vendor mode.
Issuing these events is the right thing to do, and will work around
bugzilla #13368, if userspace is properly configured and actively
handles these events.
For other ThinkPads, and when ACPI video is handling brightness
changes, thinkpad-acpi will continue NOT sending KEY_BRIGHTNESS*
events by default.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Report KEY_BRIGHTNESSUP and KEY_BRIGHTNESSDOWN input events when the
ThinkPad is in "passive brightness control" mode (because either we or
ACPI video touched _BCL), and ACPI video is not processing these
events by itself.
This happens only on Lenovo ThinkPads with ACPI video support, when
operating with the ACPI video driver in acpi_backlight=vendor mode.
Issuing these events is the right thing to do, and will work around
bugzilla #13368, if userspace is properly configured and actively
handles these events.
For other ThinkPads, and when ACPI video is handling brightness
changes, thinkpad-acpi will continue NOT sending KEY_BRIGHTNESS*
events by default.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
| drivers/platform/x86/thinkpad_acpi.c | diffblobblamehistory |