hi all everyone
i have register a rotary encoder in /dev/input/event1, and when i read it by evtest as belows:
Supported events:
Event type 0 (Sync)
Event type 3 (Absolute)
Event code 0 (X)
Value 0
Min 0
Max 24
Flat 1
Testing ... (interrupt to exit)
Event: time 1421072947.095573, type 3 (Absolute), code 0 (X), value 1
Event: time 1421072947.095603, -------------- Report Sync ------------
Event: time 1421072948.625644, type 3 (Absolute), code 0 (X), value 2
Event: time 1421072948.625644, -------------- Report Sync ------------
Event: time 1421072949.476578, type 3 (Absolute), code 0 (X), value 3
Event: time 1421072949.476578, -------------- Report Sync ------------
Event: time 1421072949.689086, type 3 (Absolute), code 0 (X), value 4
Event: time 1421072949.689116, -------------- Report Sync ------------
Event: time 1421072953.076890, type 3 (Absolute), code 0 (X), value 3
Event: time 1421072953.076890, -------------- Report Sync ------------
Event: time 1421072953.904663, type 3 (Absolute), code 0 (X), value 2
Event: time 1421072953.904663, -------------- Report Sync ------------

and I want using with an event in Qt ,how I can work well?