Hi there,

I decided to connect SD card to my WR1043NDv2 using kmod-mmc-over-gpio driver. So I have two question:

1. Which of the following gpios should I chose:

root@Chronos:/sys# cat ./kernel/debug/gpio
GPIOs 0-23, ath79:
gpio-12  (tp-link:green:wlan  ) out lo
gpio-15  (tp-link:green:usb   ) out lo
gpio-16  (Reset button        ) in  hi
gpio-17  (WLAN button         ) in  hi
gpio-18  (tp-link:green:wps   ) out lo
gpio-19  (tp-link:green:system) out lo
gpio-21  (USB power           ) out hi

2. How do I find appropriate soldering points at the PCB?

Thanks in advance for any help.

Preferably the ones connected to LEDs. The buttons usually have debounce circuitry which makes data transfers impossible (unless you like to unsolder those circuits).

Ok. Thanks for the tip.

About 2:
Does it mean that I should solder wires directly to LEDs?

Yes, that is at least worth a try.