OMAP_I2C_BUF_REG
[OMAP_I2C_BUF_REG] = 0x05,
[OMAP_I2C_BUF_REG] = 0x94,
buf = omap_i2c_read_reg(omap, OMAP_I2C_BUF_REG);
omap_i2c_write_reg(omap, OMAP_I2C_BUF_REG, buf);
w = omap_i2c_read_reg(omap, OMAP_I2C_BUF_REG);
omap_i2c_write_reg(omap, OMAP_I2C_BUF_REG, w);