TL-WR741ND v2 Deep mmc mode

Hello i am new to both forum and OpenWrt. I've only been researching for a year. but i don't know how to get mmc mod working. i have 16Mb spi flash and 32 Mb ram. is it possible mmc spi? Thank you

Please help me with spi mmc. Thanks

Please describe the issues you're having.

I don't know how to release led on gpio. I don't want to use led. but i want a free gpio.