How to use phosphor-multi-gpio-monitor for GPIOs with both edge but different behaviors

[Thang Nguyen OS]

Hi,
Is there any comment on this issue?

Thanks,
Thang Q. Nguyen 

> On 28 Oct 2022, at 18:23, Thang Nguyen OS <thang at os.amperecomputing.com> wrote:
> 
> Hi,
> 
> Do you know how to support GPIOs with both edges but different behaviors? For example, I have a GPIO named OverTemp and I would like to support like below:
> 
> - OverTemp = 1: power OFF the Host to protect the hardware. And lock the power control.
> 
> - OverTemp = 0: unlock the power control.
> 
> Although phosphor-multi-gpio-monitor support BOTH attribute, I have not found any way to check current value of GPIO to do the appropriate behavior. I can't also specify 2 entries in phosphor-multi-gpio-monitor.json with RISING and FALLING respectively as the first one will block the GPIO line. So, to support this behavior I can just specify the GPIO as gpio-keys in device tree and use phosphor-gpio-monitor to support different edges, with is not expected.
> 
> It is helpful if you have any idea to use phosphor-multi-gpio-monitor to support or any idea on changing phosphor-multi-gpio-monitor to support this.
> 
> 
> Thanks,
> 
> Thang Q. Nguyen -
> 
>