[BUG] GPIO Sysfs path mismatch

[j3ffrw]

Given the ff. test code
$ cat test-gpio.py

import RPi.GPIO as GPIO
PIN = 11
GPIO.setmode(GPIO.BOARD)
GPIO.setup(PIN, GPIO.IN)
def test(channel):
  pass

GPIO.add_event_detect(11, GPIO.BOTH, test)

Results in

Traceback (most recent call last):
  File "test-gpio.py", line 8, in <module>
    GPIO.add_event_detect(11, GPIO.BOTH, test)
RuntimeError: Failed to add edge detection  

strace shows driver access

openat(AT_FDCWD, "/sys/class/aml_gpio/export", O_WRONLY) = -1 ENOENT (No such file or directory)

but actual is

# ll /sys/class/ | grep gpio
drwxr-xr-x  2 root root 0 Jan  1  1970 gpio/
drwxr-xr-x  2 root root 0 Jan 10 12:56 meson-gpiomem/

Current workaround for me was to override odroid_found to 0
https://github.com/jfath/RPi.GPIO-Odroid/blob/master/source/cpuinfo.c#L54

reference docs
https://wiki.odroid.com/troubleshooting/gpiomem#rootless_gpio_sys-filesystemsysclassgpio

Additional Info
$ pip list | grep GPIO
RPi.GPIO 0.6.3.post1
https://odroid.in/ubuntu_20.04lts/c0_c1/ubuntu-20.04-3.10-minimal-odroid-c1-20200519.img.xz

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal

$ cat /proc/cpuinfo
Processor : ARMv7 Processor rev 1 (v7l)
processor : 0
BogoMIPS : 4.62

processor : 1
BogoMIPS : 4.62

processor : 2
BogoMIPS : 4.62

processor : 3
BogoMIPS : 4.62

Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc05
CPU revision : 1

Hardware : ODROIDC
Revision : 000a
Serial : 1b00000000000000

$ uname -ar
Linux odroid 3.10.107-25 #2 SMP PREEMPT Wed Feb 3 13:41:38 -02 2021 armv7l armv7l armv7l GNU/Linux

$ dmesg | grep gpio
[ 0.705546] amlogic_gpio gpio: Probed amlogic GPIO driver

$ lsmod | grep gpio
w1_gpio 3465 0
wire 20495 1 w1_gpio
meson_gpiomem 3455 0