sr: comments/docs

device.c

@@ -101,11 +101,10 @@ SR_API int sr_dev_probe_enable(const struct sr_dev_inst *sdi, int probenum,
  * be silently replaced.
  *
  * @param sdi Must not be NULL.
- * @param probenum The number of the probe.
- *                 Note that the probe numbers start at 1 (not 0!).
- * @param trigger trigger string, in the format used by sigrok-cli
+ * @param probenum The probe number, starting from 0.
+ * @param trigger Trigger string, in the format used by sigrok-cli
  *
- * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments.
+ * @return SR_OK on success, or SR_ERR_ARG on invalid arguments.
  */
 SR_API int sr_dev_trigger_set(const struct sr_dev_inst *sdi, int probenum,
 		const char *trigger)
@@ -142,7 +141,7 @@ SR_API int sr_dev_trigger_set(const struct sr_dev_inst *sdi, int probenum,
  * @param hwcap The capability that should be checked (whether it's supported
  *              by the specified device).
  *
- * @return TRUE, if the device has the specified capability, FALSE otherwise.
+ * @return TRUE if the device has the specified capability, FALSE otherwise.
  *         FALSE is also returned upon invalid input parameters or other
  *         error conditions.
  */

hwdriver.c

@@ -148,6 +148,13 @@ SR_API int sr_driver_init(struct sr_dev_driver *driver)
 /**
  * Tell a hardware driver to scan for devices.
  *
+ * In addition to the detection, the devices that are found are also
+ * initialized automatically. On some devices, this involves a firmware upload,
+ * or other such measures.
+ *
+ * The order in which the system is scanned for devices is not specified. The
+ * caller should not assume or rely on any specific order.
+ *
  * @param driver The driver.
  * @param options A list of struct sr_hwopt options to pass to the driver's
  * 		scanner.