Linux/AM3358: GP EVM switch interrupts

MADHU GANDEPALLI said:

I have got an AM335x General Purose EVM with me and I have seen that the Interrupts of the Switch press events for switches are defined in the kernel itself. Is it true?

GPIO matrix_keypad is described in AM335x EVM DTS file, which is part of the linux kernel.

MADHU GANDEPALLI said:

If so how to handle those events.I am trying to write a code in Qt to catch those events.If it is possible in qt kindly let me know. or else how to catch them using a gcc code.

GPIO matrix_keypad is handled in linux kernel, in below files:

linux-4.9.41/drivers/input/keyboard/matrix_keypad.c

linux-4.9.41/drivers/input/matrix-keymap.c

Some info also in the below file:

linux-4.9.41/Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt

MADHU GANDEPALLI said:

If i want to remove that interrupt handling from kernel space and wants to add in user space.How to do so?

From what I see in the e2e threads I have provided to you in my previous post, you can not remove the whole interrupt handling from kernel space, but just some part of it.

Regards,
Pavel