diff options
Diffstat (limited to 'include/i2c.h')
| -rw-r--r-- | include/i2c.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/i2c.h b/include/i2c.h index ccb65fc7a0..ed041b2876 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -43,6 +43,16 @@ #define I2C_IS_BIG_ENDIAN(addr_flags) ((addr_flags) & I2C_FLAG_BIG_ENDIAN) /* + * All 7-bit addresses in the following formats + * 0000 XXX + * 1111 XXX + * are reserved for various purposes. Valid 7-bit client adderesses start at + * 0x08 and end at 0x77 inclusive. + */ +#define I2C_FIRST_VALID_ADDR 0x08 +#define I2C_LAST_VALID_ADDR 0x77 + +/* * Max data size for a version 3 request/response packet. This is * big enough for EC_CMD_GET_VERSION plus header info. */ |