mini2440 hasn't gpio in /sys/class/

voiconvuive
Hi all,

Now i wanna control gpio on mini2440 but my kit hasn't gpio in /sys/class/

Please send me gpio file 

Best regards.

voiconvuive
Attachment: mini2440.png (174.54 KB)
THis is an image of my mini2440

davef
http://www.friendlyarm.net/forum/topic/5058  (about 1 week ago)

For the mini2440 go to:
http://www.pengutronix.com/oselas/bsp/pengutronix/mini2440_bsp_de.html

and get this file

 OSELAS.BSP-Pengutronix-Mini2440-2012.12.0.tgz

extract it and look around for a file in
configs/platform-friendlyarm-mini2440 and kernelconfig-3.7  and search for
"gpio"

I think CONFIG_GPIO_SYSFS is the one you want.

Running kernel config change it and then re-compile.

Perhaps reading through OSELAS.BSP-Pengutronix-Mini2440-Quickstart.pdf
might help you on the way.

Before you go charging off you should say which kernel version you have as
things do change.  There are kernelconfigs in that folder back to 2.6.38

voiconvuive
Thanks Davef, 

I have built kernel again and port to mini2440 successfully. 
Now i found folder gpio in /sys/class/

Again thank you so much.

Best regards.