Hi, I study the multi-touch protocol and eclair framework. The framework doesn't support ABS_MT_TRACKING_ID event type. But more new multitouch devices can support tracking in hardware, they can report each contact ID and status (down/up). They doesn't need framework to handle the tracking issue. Does anyone know that android can support these device or when the framework will support ABS_MT_TRACKING_ID event type?
On 11月27日, 上午3時39分, Dianne Hackborn <hack...@android.com> wrote: > Sorry I can't help you with the kernel. I just know that is the protocol > defined, and 2.0 that is what I implemented the framework to handle when it > gets those events from the driver. > > > > On Thu, Nov 26, 2009 at 5:18 AM, Chan Jeff <jeff021...@gmail.com> wrote: > > Thanks. > > > After checking the android-2.6.29 I have,there's no such protocol was > > found. It seems MT protocol only available after linux kernel 2.6.30. Do I > > have to wait android 2.6.30 or any other way to approach it? > > > 2009/11/25 Dianne Hackborn <hack...@android.com> > > >> On Tue, Nov 24, 2009 at 10:31 PM, Chan Jeff <jeff021...@gmail.com>wrote: > > >>> 1. Where can I get the details of multi-touch driver protocol? It's just > >>> about multiple standard input event output under /dev/input/eventX or > >>> there > >>> is some other special driver model. > >>> Please help to hint. > > >> It's the recently defined standard linux protocol: > > >>http://www.mjmwired.net/kernel/Documentation/input/multi-touch-protoc... > > >> <http://www.mjmwired.net/kernel/Documentation/input/multi-touch-protoc...> > > >>> 2. I can see action pointer 1,2,3 define in 2.0 MotionEvent. Which mean > >>> multitouch support in Eclair is up to 3 pointer,right? > > >> It supports up to 256. > > >> -- > >> Dianne Hackborn > >> Android framework engineer > >> hack...@android.com > > >> Note: please don't send private questions to me, as I don't have time to > >> provide private support, and so won't reply to such e-mails. All such > >> questions should be posted on public forums, where I and others can see and > >> answer them. > > >> -- > >> unsubscribe: > >> android-porting+unsubscr...@googlegroups.com<android-porting%2bunsubscr...@googlegroups.com> > >> website:http://groups.google.com/group/android-porting > > > -- > > unsubscribe: > > android-porting+unsubscr...@googlegroups.com<android-porting%2bunsubscr...@googlegroups.com> > > website:http://groups.google.com/group/android-porting > > -- > Dianne Hackborn > Android framework engineer > hack...@android.com > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. -- unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting
