Hi Chase, On Fri, Jan 07, 2011 at 04:28:15PM -0500, Chase Douglas wrote: > + > +* KEY_SUSPEND, KEY_POWER: > + - These codes are reserved for the EV_PWR type. > + This is not correct, KEY_SUSPEND and KEY_POWER are valid events for EV_KEY type. We need to figure out what to do with drivers who like to do EV_PWR/KEY_PWR though. The whole EV_PWR business is iffy. IIRC/IIUC it was envisioned to semd powwer events _to_ the devices to implement device-level PM. We'll have to revisit it at some point. > +EV_REL: > +---------- > +EV_REL events describe relative changes in a property. For example, a mouse may > +move to the left by a certain number of units, but its absolute position in > +space is unknown. If the absolute position is known, EV_ABS codes should be used > +instead of EV_REL codes. > + > +A few EV_REL codes have special meanings: > + > +* REL_WHEEL, REL_HWHEEL: > + - These codes are used for vertical and horizontal scroll wheels, > + respectively. > + > +EV_ABS: > +---------- > +EV_ABS events describe absolute changes in a property. For example, a touchpad > +may emit coordinates for a touch location. > + > +A few EV_ABS codes have special meanings: > + > +* ABS_DISTANCE: > + - Used to describe the distance of a tool from an interaction surface. This > + should only be used while the tool is hovering, meaning in close proximity > + of the device. If the input device may be used freely in three dimensions, > + consider ABS_Z instead. > + > +* ABS_MT_<name>: > + - Used to describe multitouch input events. Please see > + multi-touch-protocol.txt for details. > + > +EV_SW: > +---------- > +EV_SW events describe stateful binary switches. For example, the SW_LID code is > +used to denote when a laptop lid is closed. Please add that drivers should refresh switch state upon binding to a device and also upon resume. > + > +EV_MSC: > +---------- > +EV_MSC events are used for input and output events that do not fall under other > +categories. > + > +EV_LED: > +---------- > +EV_LED events are used for input and output to set and query the state of > +various LEDs on devices. > + > +EV_REP: > +---------- > +EV_REP events are used for specifying autorepeating events. > + > +EV_SND: > +---------- > +EV_SND events are used for sending sound commands to simple sound output > +devices. > + > +EV_FF: > +---------- > +EV_FF events are used to initialize a force feedback capable device and to cause > +such device to feedback. > + > +EV_PWR: > +---------- > +EV_PWR events are a special type of key event used specifically for monitoring > +power buttons and switches. The two codes in use are: > + > +* KEY_POWER: > + - Used to denote a power button event. > + > +* KEY_SUSPEND: > + - Used to denote a suspend button event. Just replace this with TBA for now. Thanks. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
