Set up the desired scan interval when searching for device advertisements.
#include <btapi/btle.h>
int bt_le_set_scan_params(uint16_t interval, uint16_t window, bt_le_advert_scan_type_t type)
BlackBerry 10.2.0
The scan interval used when no connections exist. Range (N * 0.625 msec): 0x0004 to 0x4000
The scan window used during the scan. Range (N * 0.625 msec): 0x0004 to 0x4000
The scan type used when listening for advertisements. Default: Passive scan.