Hi Bill, There is a good utility for you to understand the input subsystem event. You may reference to the source code for details.
http://cgit.freedesktop.org/~whot/evtest/ regards, Gaggery 2011/6/3 badcc0de <[email protected]>: > Hello, > I am having an issue of understanding the raw dumps off /dev/input/ > event3 which is my touch screen. I have read the kernel docs, used mtd- > tool and read their source and I am still lost; maybe someone can > straighten me out. So when I cat the aforementioned file I get the > dump below: > > 0011e80: e312 0000 dcd3 0800 0300 3500 bf00 0000 ..........5..... > 0011e90: e312 0000 6bd4 0800 0300 3600 dd01 0000 ....k.....6..... > 0011ea0: e312 0000 a1d4 0800 0300 3000 2800 0000 ..........0.(... > 0011eb0: e312 0000 d4d4 0800 0300 3200 0700 0000 ..........2..... > 0011ec0: e312 0000 07d5 0800 0000 0200 0000 0000 ................ > 0011ed0: e312 0000 48d5 0800 0000 0000 0000 0000 ....H........... > 0011ee0: e312 0000 48c2 0900 0300 3500 bf00 0000 ....H.....5..... > 0011ef0: e312 0000 5ec2 0900 0300 3600 dd01 0000 ....^.....6..... > 0011f00: e312 0000 65c2 0900 0300 3000 0000 0000 ....e.....0..... > 0011f10: e312 0000 6cc2 0900 0300 3200 0300 0000 ....l.....2..... > 0011f20: e312 0000 73c2 0900 0000 0200 0000 0000 ....s........... > 0011f30: e312 0000 7dc2 0900 0000 0000 0000 0000 ....}........... > > I think I got these bytes down (bytes are 0 - 7 inclusive starting at > the low address) > > Byte 5 --> ABS_MT_TOUCH_MAJOR ABS_MT_POSITION_X > Byte 6/7 --> data related to what byte 5 is, for instance if byte 5 is > ABS_MT_POSITION_X those bytes have x coordinate > > Can anybody tell me which bytes contain what? > > I am running Froyo with a 2.6.32.9 kernel > > Thank you... > > -- > unsubscribe: [email protected] > website: http://groups.google.com/group/android-porting > -- Regards, Gaggery -- unsubscribe: [email protected] website: http://groups.google.com/group/android-porting
