[riot-notifications] [RIOT-OS/RIOT] drivers/ph_oem: support for Atlas Scientific pH OEM sensor (#10983)

Igor Knippenberg notifications at github.com
Sat Feb 23 22:41:11 CET 2019


skullbox305 commented on this pull request.



> +    /* if successfully unlocked the register will equal 0x00 */
+    i2c_read_reg(I2C, ADDR, PH_OEM_REG_UNLOCK, &reg_value, 0x0);
+
+    if (reg_value != 0x00) {
+        DEBUG("\n[ph_oem debug] Failed at unlocking I2C address register. \n");
+        i2c_release(I2C);
+        return PH_OEM_WRITE_ERR;
+    }
+    i2c_release(I2C);
+
+    return PH_OEM_OK;
+}
+
+int ph_oem_set_i2c_address(ph_oem_t *dev, uint8_t addr)
+{
+    if (ph_oem_unlock_address_reg(dev) != PH_OEM_OK) {

added checks for dev nullpointer

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