hcooh

Hi, thanks for the link, After some investigations and debugging, I got everything working again. So I thought I would post my findings here if that can help someone else. Basically, the RPi.GPIO python library is accessing the GPIO via two different methods for different actions: - Direct access and write to registers for setting pull-up and pull down, input and output - Using the /sys/class/gpio for all edge event detection Switching between legacy and mainline kernel change the /sys/class/gpio numbering template: - Legacy: the gpio-sunxi kernel module is managing the creation of /sys/class/gpio/gpioXX (where XX is the board pin number) - Mainline: the kernel (no more specific module) is managing the creation of /sys/class/gpio/gpioXXX (where XXX is the physical port number see http://linux-sunxi.org/GPIO) So to have the LeMaker RPi.GPIO library working again, some modifications are needed to the /source/event_gpio.c. I have made the changes on my github repository: https://github.com/hcoohb/RPi.GPIO_BP/tree/bananapi (valid for bananapi branch only, I haven’t pushed the changes for bananapro branch) Hope that helps anyone.

Hi, I was on the legacy kernel until recently with my bananaPi M1. I switched to the vanilla kernel but since then, when I try to use the GPIO python library (for bananapi from LeMaker github), it works quite well except for functions gpio.add_event_detect() or GPIO.wait_for_edge(channel, GPIO.RISING) This usually disconnect my network and the event is never detected. I have to reboot the PI to restore the state. Also, a normal read/write state GPIO.input(PIN_NUM) works perfectly... I assume it is due to the vanilla kernel but could not find any documentation on why this is happening... Any answer/comments would be much appreciated! Let me know if you need more info on my setup. Thanks and regards, Fabien