Content originally posted in LPCWare by bonystedt on Thu Mar 18 08:30:49 MST 2010
I mean, wouldn't it be possible - for use in Cortex-M3 - in a new thread, influenced by Miro Sameks
10 article long series "Building a Bare-Metal ARM with GNU" and
downloads from Bluez, be possible to build together a simple program
that detects nearby Bluetooth devices?
//simplescan.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
int main(int argc, char **argv)
{
inquiry_info *devices = NULL;
int max_rsp, num_rsp;
int adapter_id, sock, len, flags;
int i;
char addr[19] = { 0 };
char name[248] = { 0 };
adapter_id = hci_get_route(NULL);
sock = hci_open_dev( adapter_id );
if (adapter_id < 0 || sock < 0) {
perror("opening socket");
exit(1);
}
len = 8;
max_rsp = 255;
flags = IREQ_CACHE_FLUSH;
devices = (inquiry_info*)malloc(max_rsp * sizeof(inquiry_info));
num_rsp = hci_inquiry(adapter_id, len, max_rsp, NULL, &devices,
flags);
if( num_rsp < 0 ) perror("hci_inquiry");
for (i = 0; i < num_rsp; i++) {
ba2str(&(devices+i)->bdaddr, addr);
memset(name, 0, sizeof(name));
if (0 != hci_read_remote_name(sock, &(devices+i)->bdaddr,
sizeof(name), name, 0)) {
strcpy(name, "[unknown]");
}
printf("%s %s\n", addr, name);
}
free( devices );
close( sock );
return 0;
}
