QY-IMX6S Linux Function And Test Manual
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As above picture shown, obtaining each gpio level status, users can
change the actual connected gpio signal to confirm gpio is normal or not.
Device Node
：
/dev/qiyang_imx6_gpio
Test Code
：
CD/Test Code/gpio_test/gpio_test.c
Driver Code:
linux-3.0.101/drivers/misc/qy_imx6_gpio.c
The Kernel Option
：
Device Drivers --->
Misc devices --->
<*> IMX6 GPIO TEST FOR QIYANG BOARD
FAQ
：
Debug UART shows:
