arch/arm/mach-lpc23xx/libs/1-wire/ds18s20.h

   1 #ifndef __DS18S20_H
   2 #define __DS18S20_H
   3
   4 #include <types.h>
   5
   6 #define DEVICE_OK                       0
   7 #define DEVICE_NOT_FOUND                1
   8 #define DEVICE_CRC_FAIL                 2
   9 #define DEVICE_SHORT_CIRCUIT            3       // kdyz je zkrat na lince (prectou se samy nuly)
  10
  11
  12 struct ds18s20_dev
  13 {
  14         uint8_t port;           // 0 for P0, 1 for P1 ...
  15         uint8_t pin_read;
  16         uint8_t pin_write;
  17         int16_t temp;
  18 };
  19
  20
  21
  22 uint8_t read_temp(struct ds18s20_dev * dev);
  23
  24 #endif //__DS18S20_H