gpio.h

arm linux s3c2410 led驱动例程

#define true 0
#define false 1
#define led1	1<<7//gpb7
#define led2	1<<8 //GPb8
#define led3   	1<<9//GPb9
#define led4	1<<10//gpb10
#define all_off false
#define all_on  true