Tachyon - Unable to use HATs as GPIO are not exported on the 40 pin header

Tachyon
1

Hi,

I’ve been testing several Raspberry display HATs that have buttons & LEDs, etc.

The following GPIO used by the HATs are not being exported: 18, 19, 32, 106, 165, and 166

How can these be exported to get the HATs working?

Thanks.

2

Instead of using the gpio.sh script, I was able to use gpiodetect & gpioget directly on the above GPIOs to detect the button presses.

particle@tachyon-16ad9a30:~$ gpiodetect
gpiochip0 [f000000.pinctrl] (176 lines)gpiochip1 [c440000.qcom,spmi:qcom,pm7325@1] (10 lines)
gpiochip2 [c440000.qcom,spmi:qcom,pmk8350@] (4 lines)
gpiochip3 [c440000.qcom,spmi:qcom,pm8350c@] (9 lines)
gpiochip4 [c440000.qcom,spmi:qcom,pm7250b@] (12 lines)
gpiochip5 [soc:qcom,msm-audio-apr:qcom,q6c] (15 lines)

particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 18
1
particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 18
0

particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 19
1
particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 19
0

particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 32
1
particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 32
0
particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 166
1
particle@tachyon-16ad9a30:~$ gpioget f000000.pinctrl 166
0
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