staging/greybus/hid.c

44 	int ret;
46 	ret = gb_pm_runtime_get_sync(ghid->bundle);
47 	if (ret)
48 		return ret;
50 	ret = gb_operation_sync(ghid->connection, GB_HID_TYPE_GET_REPORT_DESC,
56 	return ret;
61 	int ret;
63 	ret = gb_pm_runtime_get_sync(ghid->bundle);
64 	if (ret)
65 		return ret;
67 	ret = gb_operation_sync(ghid->connection, type, NULL, 0, NULL, 0);
71 	return ret;
78 	int ret;
80 	ret = gb_pm_runtime_get_sync(ghid->bundle);
81 	if (ret)
82 		return ret;
87 	ret = gb_operation_sync(ghid->connection, GB_HID_TYPE_GET_REPORT,
92 	return ret;
100 	int ret, size = sizeof(*request) + len - 1;
102 	ret = gb_pm_runtime_get_sync(ghid->bundle);
103 	if (ret)
104 		return ret;
119 	ret = gb_operation_request_send_sync(operation);
120 	if (ret) {
122 			"failed to set report: %d\n", ret);
124 		ret = len;
130 	return ret;
228 	int ret;
233 	ret = gb_hid_get_report(ghid, report_type, report_number, buf, count);
234 	if (!ret)
235 		ret = count;
237 	return ret;
245 	int ret;
255 	ret = gb_hid_set_report(ghid, report_type, report_id, buf, len);
256 	if (report_id && ret >= 0)
257 		ret++; /* add report_id to the number of transferred bytes */
284 	int ret;
296 	ret = gb_hid_get_report_desc(ghid, rdesc);
297 	if (ret) {
302 	ret = hid_parse_report(hid, rdesc, rsize);
303 	if (ret)
309 	return ret;
316 	int ret;
325 	ret = gb_hid_alloc_buffers(ghid, bufsize);
326 	if (ret)
327 		return ret;
345 	int ret;
347 	ret = gb_hid_set_power(ghid, GB_HID_TYPE_PWR_ON);
348 	if (ret < 0)
349 		return ret;
358 	int ret;
363 	ret = gb_hid_set_power(ghid, GB_HID_TYPE_PWR_OFF);
364 	if (ret)
366 			"failed to power off (%d)\n", ret);
397 	int ret;
399 	ret = gb_hid_get_desc(ghid);
400 	if (ret)
401 		return ret;
428 	int ret;
444 		ret = PTR_ERR(connection);
453 		ret = PTR_ERR(hid);
462 	ret = gb_connection_enable(connection);
463 	if (ret)
466 	ret = gb_hid_init(ghid);
467 	if (ret)
470 	ret = hid_add_device(hid);
471 	if (ret) {
472 		hid_err(hid, "can't add hid device: %d\n", ret);
489 	return ret;