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Commit 257d6ef4 authored by Jose Manuel Alarcon Roldan's avatar Jose Manuel Alarcon Roldan Committed by Linus Torvalds
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Documentation: i2c: rename variable "register" to "reg" 



The example code provided with the i2c device interface documentation
won't compile since it uses the reserved word "register" to name a
variable.

The compiler fails with this error message:

 error: expected identifier or '(' before '=' token
   __u8 register = 0x20; /* Device register to access */
                 ^

Rename the variable "register" to simply "reg" in the example code.

Another couple of typos has been fixed as well.
[Change "! =" to "!=".]

Signed-off-by: default avatarJose Alarcon Roldan <jose.alarcon.roldan@gmail.com>
Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Acked-by: default avatarWolfram Sang <wsa@the-dreams.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 77be4daf

Documentation/i2c/dev-interface

+5 −5
Original line number Diff line number Diff line
@@ -57,12 +57,12 @@ Well, you are all set up now. You can now use SMBus commands or plain 
I2C to communicate with your device. SMBus commands are preferred if

the device supports them. Both are illustrated below.



  __u8 register = 0x10; /* Device register to access */

  __u8 reg = 0x10; /* Device register to access */

  __s32 res;

  char buf[10];



  /* Using SMBus commands */

  res = i2c_smbus_read_word_data(file, register);

  res = i2c_smbus_read_word_data(file, reg);

  if (res < 0) {

    /* ERROR HANDLING: i2c transaction failed */

  } else {
@@ -70,8 +70,8 @@ the device supports them. Both are illustrated below. 
  }



  /* Using I2C Write, equivalent of 

     i2c_smbus_write_word_data(file, register, 0x6543) */

  buf[0] = register;

     i2c_smbus_write_word_data(file, reg, 0x6543) */

  buf[0] = reg;

  buf[1] = 0x43;

  buf[2] = 0x65;

  if (write(file, buf, 3) != 3) {