I wonder the timing of gpioRI exported. I entered “AT!RIOWNER=1” and power off on WP7605. Then, I checked gpioRI exported or not, using “ls /sys/class/gpio”. Unfortunately, sometimes it does not exist gpioRI. However, it returned “1”, when I entered “AT!RIOWNER?”. Is it too fast power off afte…

Hi, jyijyi Thank you for replying every time. Do you mean the path is generated without reset?

Sorry, i check again the AT command user guide, it says: “Reset required to apply changes: Yes (Changes take effect immediately, but a controlled reset is required to make the change persistent.” So i think you should do a power cycle to reset the wp76 module after entering the commnd. After t…

Hi, jyijyi Thank you for the telling reliable information. After entering the commnd and resetting the wp76 module, “/sys/class/gpio/gpioRI” is exported automatically. I think that it does’t need enter “echo RI > /sys/class/gpio/export” Let’s go back to my question. Unfortunately, sometimes it…

Do you see gpioRI after entering this "echo RI > /sys/class/gpio/export”

Yes, I do and check it. Are there any differences between gpioRI with a power cycle or one without it? I will use gpioRI after reset.

I prefer using it after power cycle of module

I understand gpioRI is exported after AT!RIOWNER=1 and "echo RI > /sys/class/gpio/export”. In my experience, gpioRI is also exported after AT!RIOWNER=1 and resetting. After resetting(power cycle), is it need to enter "echo RI > /sys/class/gpio/export”? sometimes it does not exist gpioRI Which …

normally i will enter that command

Okey, I will do it. Please, let me check my goal. I would like to use gpioRI certainly. Therefore, I’ll do the followings. ①Enter “AT!RIOWNER=1” ②Check “1” returned, when I entered “AT!RIOWNER?” ③Do a power cycle. (AT!RESET or AT!POWERDOWN) ④After power-on, enter “echo RI > /sys/class/gpio/e…

When be exported gpioRI?

Legato Linux distribution (Yocto project)

jyijyi October 24, 2020, 1:02am 2

Maybe the safest way is to see if the path is generated after the commad before going to sleep mode

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When be exported gpioRI?

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