On 05/05/2012 08:08 AM, Henrik Rydberg wrote: > The newly released HID protocol for win8 input devices is capable of > transmitting the same information found in the Apple HID and Linux MT > protocols. In addition, it includes an extension useful for touch > alignment. This patch completes the MT protocol with the > ABS_MT_APPROACH_X/Y events, and documents how to map win8 devices. > > Signed-off-by: Henrik Rydberg <rydberg@xxxxxxxxxxx> > --- > Hi all, > > In response to the win8 HID protocol and Benjamin's work on this, here > is a first draft of the needed extension to the MT protocol. I am > cc:ing the usual suspects, as this will affect userland. Comments and > criticism expected. :-) > > Cheers, > Henrik > > Documentation/input/multi-touch-protocol.txt | 35 +++++++++++++++++++++++++- > include/linux/input.h | 4 ++- > 2 files changed, 37 insertions(+), 2 deletions(-) > > diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt > index 543101c..504ca6d 100644 > --- a/Documentation/input/multi-touch-protocol.txt > +++ b/Documentation/input/multi-touch-protocol.txt [snip] > @@ -252,6 +254,9 @@ can distinguish between the two axis, but not (uniquely) any values in > between. In such cases, the range of ABS_MT_ORIENTATION should be [0, 1] > [4]. > > +For devices capable of 360 degree orientation, the reported orientation > +should be twice the given range. I don't understand what this means. Can you elaborate? -- Chase -- 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
