how to control GPIO in Android application?

busybee · Posted at 9/7/2015 18:02:01

Last edited by busybee In 9/7/2015 18:10 Editor

Please reference:
- http://falsinsoft.blogspot.jp/20 ... nux-user-space.html
- http://android.serverbox.ch/?p=972

Make sure your program has access permission to the files.

busybee · Posted at 9/11/2015 10:33:57

zamster Posted at 9/9/2015 10:09
thanks for your reply.

would you give me more explanation?

First refer to the uart driver wiki:
http://wiki.t-firefly.com/index.php/Firefly-RK3288/UART/en

If you are using uart3, you can access /dev/ttyS3.
Then google for "Linux serial programming", which will give you a bunch of
documents and examples. One is:

http://www.comptechdoc.org/os/li ... inux_pgcserial.html

busybee · Posted at 9/11/2015 17:42:24

Same uart driver is already configured builtin for all the uart devices.
No need to make new one.

busybee · Posted at 9/12/2015 10:53:25

Add:
CONFIG_SERIAL_ROCKCHIP=y
in your kernel/.config file