addpkg(root/libgpiod): add v2.2

[Grimler91]

libgpiod allows for checking and setting different GPIO pins in the device, if kernel is new enough.

[Biswa96]

I have tested the package. gpioinfo does not show expected output for some reason.

# /data/data/com.termux/files/usr/bin/gpiodetect
gpiochip0 [1000000.pinctrl] (134 lines)
gpiochip1 [200f000.qcom,spmi:qcom,pm8937@0] (5 lines)
gpiochip2 [200f000.qcom,spmi:qcom,pmi8950@] (2 lines)
gpiochip3 [200f000.qcom,spmi:qcom,pm8937@0] (4 lines)
gpiochip4 [200f000.qcom,spmi:qcom,pmi8950@] (4 lines)

# /data/data/com.termux/files/usr/bin/gpioinfo
/data/data/com.termux/files/usr/bin/gpioinfo: unable to read info for line 0 from gpiochip0: Invalid argument

But /system/bin/gpioinfo works as expected. Probably, it's device specific quirk.

ioctl(3, GPIO_GET_CHIPINFO_IOCTL, 0x7fd11480f4) = 0
ioctl(3, _IOC(_IOC_READ|_IOC_WRITE, 0xb4, 0x5, 0x100), 0x7fd1148038) = -1 EINVAL (Invalid argument)

[Grimler91]

@Biswa96 interesting, thanks for testing! What device are you using? I can ask on the libgpiod if error is expected on (some) android kernels.. Also intersting that you have a /system/bin/gpioinfo, I do not on my fairphone 4

[Biswa96]

I am using Linux kernel 4.19.318 https://github.com/LineageOS/android_kernel_xiaomi_msm8937. The /system/bin/gpioinfo is from toybox.