蓝牙 bluez 的编程 C C++

蓝牙 bluez 的编程 C C++

简介

bluez目录有一个libbluetooth.a文件

有一个目录 lib目录里面存储这网络连接的部分代码

基于库的代码编程.

在linux下如果自带了蓝牙,可以通过gcc **.c -lbluetooth 直接编出一个可执行文件.

参考文献

下面的连接提供了一个测试代码.

博客链接

另外,关于 ble 使用库的方式一直出现失败的情况,是因为,没有设置ble的相关参数,具体可以参考

博客链接

中的enable_advertising函数

 int device_id = hci_get_route(NULL);

        int device_handle = 0;
        if ((device_handle = hci_open_dev(device_id)) < 0) {
                perror("Could not open device");
                exit(1);
        }

        le_set_advertising_parameters_cp adv_params_cp = { 0 };
        adv_params_cp.min_interval = htobs(advertising_interval);
        adv_params_cp.max_interval = htobs(advertising_interval);
        adv_params_cp.chan_map = 7;

        uint8_t status;
        struct hci_request rq = { 0 };
        rq.ogf = OGF_LE_CTL;
        rq.ocf = OCF_LE_SET_ADVERTISING_PARAMETERS;
        rq.cparam = &adv_params_cp;
        rq.clen = LE_SET_ADVERTISING_PARAMETERS_CP_SIZE;
        rq.rparam = &status;
        rq.rlen = 1;

        int ret = hci_send_req(device_handle, &rq, 1000);
        if (ret < 0) {
                hci_close_dev(device_handle);
                fprintf(stderr, "Can't send request %s (%d)\n", strerror(errno), errno);
                return (1);
        }

        le_set_advertise_enable_cp advertise_cp = { 0 };
        advertise_cp.enable = 0x01;

        memset(&rq, 0, sizeof(rq));
        rq.ogf = OGF_LE_CTL;
        rq.ocf = OCF_LE_SET_ADVERTISE_ENABLE;
        rq.cparam = &advertise_cp;
        rq.clen = LE_SET_ADVERTISE_ENABLE_CP_SIZE;
        rq.rparam = &status;
        rq.rlen = 1;

        ret = hci_send_req(device_handle, &rq, 1000);

        if (ret < 0) {
                hci_close_dev(device_handle);
                fprintf(stderr, "Can't send request %s (%d)\n", strerror(errno), errno);
                return (1);
        }