Henrique de Moraes Holschuh c7ac6291ea thinkpad-acpi: disable volume control ... Disable volume control by default. It can be enabled at module load time by a module parameter (volume_control=1). The audio control mixer that thinkpad-acpi interacts with is fully functional without any drivers, and operated by hotkeys. The idea behind the console audio control is that the human operator is the only one that can interact with it. The ThinkVantage suite in Windows does not allow any software-based overrides, and only does OSD (on-screen-display) functions. The Linux driver will, with the addition of the ALSA interface, try to follow and enforce the ThinkVantage UI design: The user is supposed to use the keyboard hotkeys to interact with the console audio control. The kernel and the desktop environment is supposed to cooperate to provide proper user feedback through on-screen-display functions. Distros are urged to not to enable volume control by default. Enabling this must be a local admin's decision. This is the reason why there is no Kconfig option. Keep in mind that all ThinkPads have a normal, main mixer (AC97 or HDA) for regular software-based audio control. We are not talking about that mixer here. Advanced users are, of course, free to enable volume control and do as they please. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Lorne Applebaum <lorne.applebaum@gmail.com> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Len Brown <len.brown@intel.com>		2009-12-15 23:57:35 -05:00
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x86	thinkpad-acpi: disable volume control	2009-12-15 23:57:35 -05:00
Kconfig
Makefile