revert interface issue

Author: sctanf

src/sensor/interface.c

@@ -143,9 +143,6 @@ int ssi_write(enum sensor_interface_dev dev, const uint8_t *buf, uint32_t num_by
 #endif
 	case SENSOR_INTERFACE_SPEC_I2C:
 		return i2c_write_dt(sensor_interface_dev_i2c[dev], buf, num_bytes);
-  case SENSOR_INTERFACE_SPEC_EXT:
-    if (ext_ssi != NULL)
-      return ext_ssi->ext_write(ext_addr, buf, num_bytes);
 	default:
 		return -1;
 	}
@@ -182,6 +179,9 @@ int ssi_read(enum sensor_interface_dev dev, uint8_t *buf, uint32_t num_bytes)
 #endif
 	case SENSOR_INTERFACE_SPEC_I2C:
 		return i2c_read_dt(sensor_interface_dev_i2c[dev], buf, num_bytes);
+	case SENSOR_INTERFACE_SPEC_EXT:
+		if (ext_ssi != NULL)
+			return ext_ssi->ext_write(ext_addr, buf, num_bytes);
 	default:
 		return -1;
 	}