linux 蓝牙驱动架构

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>

void scan_devices() {
    inquiry_info *ii = 0;
    int max_rsp, num_rsp;
    int dev_id, sock;
    struct hci_devinfo di;
    char addr[19] = {0};
    char name[248] = {0};

    dev_id = hci_get_route(NULL);
    sock = hci_open_dev(dev_id);
    if (dev_id < 0 || sock < 0) {
        perror("Opening socket");
        exit(1);
    }

    max_rsp = 255;
    ii = (inquiry_info*)malloc(max_rsp * sizeof(inquiry_info));

    num_rsp = hci_inquiry(dev_id, 8, max_rsp, NULL, &ii, 0);
    if(num_rsp < 0) perror("hci_inquiry");

    for (int i = 0; i < num_rsp; i++) {
        ba2str(&(ii+i)->bdaddr, addr);
        memset(name, 0, sizeof(name));
        if (hci_read_remote_name(sock, &(ii+i)->bdaddr, sizeof(name), name, 0) < 0)
            strcpy(name, "[unknown]");
        printf("%s  %s
", addr, name);
    }

    free(ii);
    close(sock);
}

int main(int argc, char **argv) {
    scan_devices();
    return 0;
}