Hello, I am using the 4G 4inch LCD. I mapped one of the GPIO pins to TAB key in the device tree by modifying the "linux,code" in the device tree. I would like to map a second GPIO pin to SHIFT + TAB combination. However, the documentation (http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/input/gpio-keys.txt) does not specify how to achieve this. Any suggestions will be appreciated? I am wondering if I actually need to write a driver to map sequence of keys?
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