On Wed, Nov 14, 2012 at 04:59:21PM +0100, Benjamin Tissoires wrote: > Some devices provides the actual timestamp (hid_dg_scan_time in win8 ones) > computed by the hardware itself. This value is global to the frame and is > not specific to the multitouch protocol. > > Signed-off-by: Benjamin Tissoires <[email protected]> > Reviewed-by: Henrik Rydberg <[email protected]>
Acked-by: Dmitry Torokhov <[email protected]> I take it will go through Jiri's tree, right? > --- > Documentation/input/event-codes.txt | 11 +++++++++++ > include/linux/input.h | 1 + > 2 files changed, 12 insertions(+) > > diff --git a/Documentation/input/event-codes.txt > b/Documentation/input/event-codes.txt > index 53305bd..f1ea2c6 100644 > --- a/Documentation/input/event-codes.txt > +++ b/Documentation/input/event-codes.txt > @@ -196,6 +196,17 @@ EV_MSC: > EV_MSC events are used for input and output events that do not fall under > other > categories. > > +A few EV_MSC codes have special meaning: > + > +* MSC_TIMESTAMP: > + - Used to report the number of microseconds since the last reset. This > event > + should be coded as an uint32 value, which is allowed to wrap around with > + no special consequence. It is assumed that the time difference between > two > + consecutive events is reliable on a reasonable time scale (hours). > + A reset to zero can happen, in which case the time since the last event > is > + unknown. If the device does not provide this information, the driver > must > + not provide it to user space. > + > EV_LED: > ---------- > EV_LED events are used for input and output to set and query the state of > diff --git a/include/linux/input.h b/include/linux/input.h > index ba48743..25354f3 100644 > --- a/include/linux/input.h > +++ b/include/linux/input.h > @@ -858,6 +858,7 @@ struct input_keymap_entry { > #define MSC_GESTURE 0x02 > #define MSC_RAW 0x03 > #define MSC_SCAN 0x04 > +#define MSC_TIMESTAMP 0x05 > #define MSC_MAX 0x07 > #define MSC_CNT (MSC_MAX+1) > > -- > 1.8.0 > -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
