uadc.h

来自「《并行口编程指南》」· C头文件 代码 · 共 31 行

/* uadc.h */

#include<sys/ioctl.h>
#define ADC_MAJOR 31
#define ADC_MINOR 3

#define PARALLEL_1 0x378
#define PARALLEL_2 0x3bc
#define PARALLEL_3 0x278

#define ADC_BUSY 1
#define ADC_FREE 0

#define ADC_AVAILABLE 1
#define ADC_NOT_AVAILABLE 0

#define DEVICE_OPEN 0
#define DEVICE_CLOSE 1
#define DEVICE_READ 2

#define CHANNEL_0   0
#define CHANNEL_1   1
#define CHANNEL_2   2
#define CHANNEL_3   3
#define CHANNEL_4   4
#define CHANNEL_5   5
#define CHANNEL_6   6
#define CHANNEL_7   7

int adc(int,int);