C++ (Cpp) mei_nfc_connect示例

示例#1

文件： nfc.c 项目： AICP/kernel_moto_shamu

static int mei_nfc_enable(struct mei_cl_device *cldev)
{
	struct mei_device *dev;
	struct mei_nfc_dev *ndev = &nfc_dev;
	int ret;

	dev = ndev->cl->dev;

	ret = mei_nfc_connect(ndev);
	if (ret < 0) {
		dev_err(&dev->pdev->dev, "Could not connect to NFC");
		return ret;
	}

	return 0;
}

示例#2

文件： mei_phy.c 项目： Kirill2013/kasan

static int nfc_mei_phy_enable(void *phy_id)
{
	int r;
	struct nfc_mei_phy *phy = phy_id;

	pr_info("%s\n", __func__);

	if (phy->powered == 1)
		return 0;

	r = mei_cl_enable_device(phy->device);
	if (r < 0) {
		pr_err("Could not enable device %d\n", r);
		return r;
	}

	r = mei_nfc_if_version(phy);
	if (r < 0) {
		pr_err("Could not enable device %d\n", r);
		goto err;
	}

	r = mei_nfc_connect(phy);
	if (r < 0) {
		pr_err("Could not connect to device %d\n", r);
		goto err;
	}

	r = mei_cl_register_event_cb(phy->device, nfc_mei_event_cb, phy);
	if (r) {
		pr_err("Event cb registration failed %d\n", r);
		goto err;
	}

	phy->powered = 1;

	return 0;

err:
	phy->powered = 0;
	mei_cl_disable_device(phy->device);
	return r;
}