how to make linux work with touch panel?

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how to make linux work with touch panel?

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freescaleusr1
Contributor I

Hi,

I have a lcd panel with touch feature like I2C interface,30X42Y, its model is LP101WH4-SLAA, i have no more detailed spec about this touch protocol, so wish expert to tell me how port my arm board to touch panel. looking forward to reply, thanks. I use wandboard solo arm board, yocto image: core-image-minimal and core-image-x11.

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alejandrolozan1
NXP Employee
NXP Employee

Hi,

As far as I know the touchscreen acts as an input device.

You can find a very simple example of an input device driver in the linxu documentation:

Documentation/input/input-programming.txt

And the existing drivers may be helpful to understand the Linux API for the input device drivers.

But before doing that you need to understand how the touch controller sends the touch reports and I have not found the datasheet or the document  that contains such information. If you have somethig please feel free to share it.

Best Regards,

Alejandro

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