AnsweredAssumed Answered

How to use the kpp for imx6q+android4.3?

Question asked by 燕频 姜 on May 29, 2015
Latest reply on Sep 25, 2016 by 燕频 姜



I want to use 4 row,4 col on my board.I have activated the keypad driver in the kernel and configured the column and row keypads in the board file.


In the device filesystem is  the entry :


I: Bus=0019 Vendor=0000 Product=0000 Version=0000

N: Name="imx-keypad"

P: Phys=

S: Sysfs=/devices/platform/imx-keypad/input/input1

U: Uniq=

H: Handlers=event1


B: EV=100013

B: KEY=3 0 0 0 0 0 0 40000800 1680 0 78000000 10000ffe

B: MSC=10


the interrupts is:

114:          0          0          0          0       GIC  imx-keypad


But,when press then button,there is no interrupts on.


How to set clk? The BSP has not kpp clk.


keypad->clk = clk_get(&pdev->dev, "kpp");


Has somebody an idea what could be the reason?