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Add macro to make it clear we expect 7-bit addresses

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1675 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2009-03-31 22:30:36 +00:00
parent d044d4f67b
commit b1b2689519
1 changed files with 5 additions and 0 deletions
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5
include/nuttx/i2c.h
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@ -47,6 +47,11 @@
* Definitions
****************************************************************************/
/* I2C address calculation. Convert 7-bit address to 8-bit read/write address */
#define I2C_READADDR(a) (((a) << 1) | 1)
#define I2C_WRITEADDR(a) ((a) << 1)
/* Access macros */
/****************************************************************************