diff options
| author | Bill Richardson <wfrichar@chromium.org> | 2012-02-13 14:45:29 -0800 |
|---|---|---|
| committer | Bill Richardson <wfrichar@chromium.org> | 2012-02-13 16:16:10 -0800 |
| commit | e5b17f90474f2946cb29aa5828c2642fbfffdfa8 (patch) | |
| tree | 3924e8929475337e3e7b062c1a7be4835df5c252 /include/i2c.h | |
| parent | 616c60e70727726f5395cf6730010f4b1a9b6ab5 (diff) | |
| download | chrome-ec-e5b17f90474f2946cb29aa5828c2642fbfffdfa8.tar.gz | |
Add 8-bit I2C read/write functions.
These provide 8-bit accesses to registers within an I2C device.
BUG=chrome-os-partner:7839
TEST=none
Testing will come when I start using them.
Change-Id: Ib53d3347253bccee93cb9c5da12db92970155d92
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
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 34076b1f34..c3301e530d 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -26,4 +26,14 @@ int i2c_read16(int port, int slave_addr, int offset, int* data); * space. */ int i2c_write16(int port, int slave_addr, int offset, int data); +/* Reads an 8-bit register from the slave at 8-bit slave address + * <slaveaddr>, at the specified 8-bit <offset> in the slave's address + * space. */ +int i2c_read8(int port, int slave_addr, int offset, int* data); + +/* Writes an 8-bit register to the slave at 8-bit slave address + * <slaveaddr>, at the specified 8-bit <offset> in the slave's address + * space. */ +int i2c_write8(int port, int slave_addr, int offset, int data); + #endif /* __CROS_EC_I2C_H */ |