hi_i2c.h 1.5 KB

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  1. #ifndef _HI_I2C_H
  2. #define _HI_I2C_H
  3. /* /dev/i2c-X ioctl commands. The ioctl's parameter is always an
  4. * unsigned long, except for:
  5. * - I2C_FUNCS, takes pointer to an unsigned long
  6. * - I2C_RDWR, takes pointer to struct i2c_rdwr_ioctl_data
  7. * - I2C_SMBUS, takes pointer to struct i2c_smbus_ioctl_data
  8. */
  9. #define I2C_RETRIES 0x0701 /* number of times a device address should
  10. be polled when not acknowledging */
  11. #define I2C_TIMEOUT 0x0702 /* set timeout in units of 10 ms */
  12. /* NOTE: Slave address is 7 or 10 bits, but 10-bit addresses
  13. * are NOT supported! (due to code brokenness)
  14. */
  15. #define I2C_SLAVE 0x0703 /* Use this slave address */
  16. #define I2C_SLAVE_FORCE 0x0706 /* Use this slave address, even if it
  17. is already in use by a driver! */
  18. #define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */
  19. #define I2C_FUNCS 0x0705 /* Get the adapter functionality mask */
  20. #define I2C_RDWR 0x0707 /* Combined R/W transfer (one STOP only) */
  21. #define I2C_PEC 0x0708 /* != 0 to use PEC with SMBus */
  22. #define I2C_SMBUS 0x0720 /* SMBus transfer */
  23. #define I2C_16BIT_REG 0x0709 /* 16BIT REG WIDTH */
  24. #define I2C_16BIT_DATA 0x070a /* 16BIT DATA WIDTH */
  25. typedef struct hiI2C_DATA_S
  26. {
  27. unsigned char dev_addr;
  28. unsigned int reg_addr;
  29. unsigned int addr_byte_num;
  30. unsigned int data;
  31. unsigned int data_byte_num;
  32. }I2C_DATA_S;
  33. #endif