Hi,

I've patched and compiled an avrdude version to run on Carambola, using SPI pins as GPIO, but I'm having the following message when I try to run: "Can't export GPIO 3, already exported/busy?: Device or resource busy avrdude done. Thank you."

ps returns ramips-spi on process listing. I think this app/driver is locking GPIO3 to GPIO6. I tried io 0x10000060 0x1f, but same error happened. I think ramips-spi is these GPIO pins, but I don`t know how to remove it. I have tried to remake image without spi-dev and flash again, but ramips-spi still there.

Could anyone give a hint?

Thanks,

Fabio

* I think ramips-spi is locking these GPIO pins, but I don`t know how to remove it.

Hi,

I couldn't use SPI lines as GPIOs to program AVR with avrdude. I change AVR ISP lines to GPIOs 14, 13, 12 and 11, that are shared with UARTF (ttyS1). After some trouble with GPIO numbers, it works.

However, I think that are something locking GPIO lines shared with SPI, because, from user space, isn't possible to use them as GPIO.

Fabio