I've got some questions when I test I.mx6q gpio throgh the GPIO-SYSFS feature.
As a picture you can see below，
No matter I input 1 or 0 into gpio199 value , the result is 0.
Pls hlep me ,tks.
*Notice ： I've add this pin as gpio into pinctrl_hog in imx6qdl-sabresd.dtsi.