On Mon, Mar 27, 2017 at 8:22 AM, Nandor Han <nandor.han@xxxxxx> wrote: > Testing: > > 1. XRA1403 connected to iMX53 MCU > 2. Export gpio from userspace > 3. Verify that corresponding gpio directories are created > in `/sys/class/gpio/gpioXX` > 4. Export gpios from first and second bank as output > 5. Set the output gpio pin to high/low and verify with the > oscilloscope that gpio status is according with the configured > value. Do *NOT* use the sysfs for testing GPIO. This is being phased out. Use the tools in tools/gpio/* so that you exercise the character device instead of the old deprecated ABI. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
