-/* During client attach, set_type is called by adapter's attach_inform callback.
- set_type must then be completed by tuner_probe.
+/**
+ *tuner_probe - Probes the existing tuners on an I2C bus
+ *
+ * @client: i2c_client descriptor
+ * @id: not used
+ *
+ * This routine probes for tuners at the expected I2C addresses. On most
+ * cases, if a device answers to a given I2C address, it assumes that the
+ * device is a tuner. On a few cases, however, an additional logic is needed
+ * to double check if the device is really a tuner, or to identify the tuner
+ * type, like on tea5767/5761 devices.
+ *
+ * During client attach, set_type is called by adapter's attach_inform callback.
+ * set_type must then be completed by tuner_probe.