UM1770 datasheet(35/56 Pages) STMICROELECTRONICS

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UM1770

Profile – application interface functions

6.6

Human interface device profile

6.6.1

HidDevice_Init()

Description

Initializes the Hid profile. It returns BLE_STATUS_SUCCESS if the procedure is started

successfully, or BLE_STATUS_FAILED if not. The application is notified through the event

EVT_HID_INITIALIZED on successful initialization.

Parameters

numOfHIDServices – number of HID services to be exposed in the profile.

HidServiceData – pointer to the structure tApplDataForHidServ containing the

configuration parameters provided by the application at the time of Initialization.

NumOfBatteryServices – number of battery services to be exposed in the profile

scanParamServiceSupport – adds the scan parameters service during hid initialization

if set to '1'.

scanRefreshCharSupport – adds the scan parameters refresh characteristics if set to

'1'.

BLE_CALLBACK_FUNCTION_TYPE – callback function type to be called by the

profile to notify the application of the events.

6.6.2

HidDevice_Make_Discoverable()

Description

The function puts the device into discoverable mode. BLE_STATUS_SUCCESS is returned

if the command to put the device into discoverable mode was issued successfully.

Parameters

useBoundedDeviceList – if this is set to '1', advertising is performed on the devices

already bonded using whitelist.

6.6.3

HidDevice_Update_Input_Report()

Description

This is called by the application to update the input report characteristic with the value

specified in ipReportValue. It returns BLE_STATUS_SUCCESS if the update was

successfully started, otherwise it returns error codes. On successful update of the

characteristic, the application is notified through the event EVT_HID_UPDATE_CMPLT.

Parameters

hidServiceIndex – the index of the HID service whose report characteristic has to be

updated.

IpReportIndex – the index of the input report to be updated

ipReportValLength – length of the input report

ipReportValue – value of the input report.

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