25 static int rpmsg_sample_cb(struct rpmsg_device *rpdev, void *data, int len,  in rpmsg_sample_cb()  argument
29 	struct instance_data *idata = dev_get_drvdata(&rpdev->dev);  in rpmsg_sample_cb()
31 	dev_info(&rpdev->dev, "incoming msg %d (src: 0x%x)\n",  in rpmsg_sample_cb()
39 		dev_info(&rpdev->dev, "goodbye!\n");  in rpmsg_sample_cb()
44 	ret = rpmsg_send(rpdev->ept, MSG, strlen(MSG));  in rpmsg_sample_cb()
46 		dev_err(&rpdev->dev, "rpmsg_send failed: %d\n", ret);  in rpmsg_sample_cb()
51 static int rpmsg_sample_probe(struct rpmsg_device *rpdev)  in rpmsg_sample_probe()  argument
56 	dev_info(&rpdev->dev, "new channel: 0x%x -> 0x%x!\n",  in rpmsg_sample_probe()
57 					rpdev->src, rpdev->dst);  in rpmsg_sample_probe()
59 	idata = devm_kzalloc(&rpdev->dev, sizeof(*idata), GFP_KERNEL);  in rpmsg_sample_probe()
63 	dev_set_drvdata(&rpdev->dev, idata);  in rpmsg_sample_probe()
66 	ret = rpmsg_send(rpdev->ept, MSG, strlen(MSG));  in rpmsg_sample_probe()
68 		dev_err(&rpdev->dev, "rpmsg_send failed: %d\n", ret);  in rpmsg_sample_probe()
75 static void rpmsg_sample_remove(struct rpmsg_device *rpdev)  in rpmsg_sample_remove()  argument
77 	dev_info(&rpdev->dev, "rpmsg sample client driver is removed\n");  in rpmsg_sample_remove()