arch/arm/mach-mt8127/pixi3_10/eeprom/inc/eeprom.h

   1 #ifndef _EEPROM_H
   2 #define _EEPROM_H
   3
   4 #include <linux/ioctl.h>
   5
   6
   7 #define EEPROMAGIC 'i'
   8 //IOCTRL(inode * ,file * ,cmd ,arg )
   9 //S means "set through a ptr"
  10 //T means "tell by a arg value"
  11 //G means "get by a ptr"
  12 //Q means "get by return a value"
  13 //X means "switch G and S atomically"
  14 //H means "switch T and Q atomically"
  15
  16 /*******************************************************************************
  17 *
  18 ********************************************************************************/
  19
  20 //EEPROM write
  21 #define EEPROMIOC_S_WRITE            _IOW(EEPROMAGIC,0,stEEPROM_INFO_STRUCT)
  22 //EEPROM read
  23 #define EEPROMIOC_G_READ            _IOWR(EEPROMAGIC,5,stPEEPROM_INFO_STRUCT)
  24
  25 #endif //_EEPROM_H
  26
  27