175 	int ret;  in cp2112_gpio_direction_input()  local
177 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,  in cp2112_gpio_direction_input()
180 	if (ret != sizeof(buf)) {  in cp2112_gpio_direction_input()
181 		hid_err(hdev, "error requesting GPIO config: %d\n", ret);  in cp2112_gpio_direction_input()
182 		return ret;  in cp2112_gpio_direction_input()
188 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf, sizeof(buf),  in cp2112_gpio_direction_input()
190 	if (ret < 0) {  in cp2112_gpio_direction_input()
191 		hid_err(hdev, "error setting GPIO config: %d\n", ret);  in cp2112_gpio_direction_input()
192 		return ret;  in cp2112_gpio_direction_input()
204 	int ret;  in cp2112_gpio_set()  local
210 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_SET, buf, sizeof(buf),  in cp2112_gpio_set()
212 	if (ret < 0)  in cp2112_gpio_set()
213 		hid_err(hdev, "error setting GPIO values: %d\n", ret);  in cp2112_gpio_set()
222 	int ret;  in cp2112_gpio_get()  local
224 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_GET, buf, sizeof(buf),  in cp2112_gpio_get()
226 	if (ret != sizeof(buf)) {  in cp2112_gpio_get()
227 		hid_err(hdev, "error requesting GPIO values: %d\n", ret);  in cp2112_gpio_get()
228 		return ret;  in cp2112_gpio_get()
241 	int ret;  in cp2112_gpio_direction_output()  local
243 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,  in cp2112_gpio_direction_output()
246 	if (ret != sizeof(buf)) {  in cp2112_gpio_direction_output()
247 		hid_err(hdev, "error requesting GPIO config: %d\n", ret);  in cp2112_gpio_direction_output()
248 		return ret;  in cp2112_gpio_direction_output()
254 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf, sizeof(buf),  in cp2112_gpio_direction_output()
256 	if (ret < 0) {  in cp2112_gpio_direction_output()
257 		hid_err(hdev, "error setting GPIO config: %d\n", ret);  in cp2112_gpio_direction_output()
258 		return ret;  in cp2112_gpio_direction_output()
274 	int ret;  in cp2112_hid_get()  local
280 	ret = hid_hw_raw_request(hdev, report_number, buf, count,  in cp2112_hid_get()
284 	return ret;  in cp2112_hid_get()
291 	int ret;  in cp2112_hid_output()  local
298 		ret = hid_hw_output_report(hdev, buf, count);  in cp2112_hid_output()
300 		ret = hid_hw_raw_request(hdev, buf[0], buf, count, report_type,  in cp2112_hid_output()
304 	return ret;  in cp2112_hid_output()
309 	int ret = 0;  in cp2112_wait()  local
319 	ret = wait_event_interruptible_timeout(dev->wait,  in cp2112_wait()
321 	if (-ERESTARTSYS == ret)  in cp2112_wait()
322 		return ret;  in cp2112_wait()
323 	if (!ret)  in cp2112_wait()
334 	int ret;  in cp2112_xfer_status()  local
340 	ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);  in cp2112_xfer_status()
341 	if (ret < 0) {  in cp2112_xfer_status()
342 		hid_warn(hdev, "Error requesting status: %d\n", ret);  in cp2112_xfer_status()
343 		return ret;  in cp2112_xfer_status()
346 	ret = cp2112_wait(dev, &dev->xfer_avail);  in cp2112_xfer_status()
347 	if (ret)  in cp2112_xfer_status()
348 		return ret;  in cp2112_xfer_status()
357 	int ret;  in cp2112_read()  local
366 	ret = cp2112_hid_output(hdev, &report.report, sizeof(report),  in cp2112_read()
368 	if (ret < 0) {  in cp2112_read()
369 		hid_warn(hdev, "Error requesting data: %d\n", ret);  in cp2112_read()
370 		return ret;  in cp2112_read()
373 	ret = cp2112_wait(dev, &dev->read_avail);  in cp2112_read()
374 	if (ret)  in cp2112_read()
375 		return ret;  in cp2112_read()
457 	int ret;  in cp2112_i2c_xfer()  local
476 	ret = hid_hw_power(hdev, PM_HINT_FULLON);  in cp2112_i2c_xfer()
477 	if (ret < 0) {  in cp2112_i2c_xfer()
478 		hid_err(hdev, "power management error: %d\n", ret);  in cp2112_i2c_xfer()
479 		return ret;  in cp2112_i2c_xfer()
482 	ret = cp2112_hid_output(hdev, buf, count, HID_OUTPUT_REPORT);  in cp2112_i2c_xfer()
483 	if (ret < 0) {  in cp2112_i2c_xfer()
484 		hid_warn(hdev, "Error starting transaction: %d\n", ret);  in cp2112_i2c_xfer()
489 		ret = cp2112_xfer_status(dev);  in cp2112_i2c_xfer()
490 		if (-EBUSY == ret)  in cp2112_i2c_xfer()
492 		if (ret < 0)  in cp2112_i2c_xfer()
502 		ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);  in cp2112_i2c_xfer()
503 		if (ret < 0)  in cp2112_i2c_xfer()
505 				 ret);  in cp2112_i2c_xfer()
507 		ret = -ETIMEDOUT;  in cp2112_i2c_xfer()
514 	ret = cp2112_read(dev, msgs->buf, msgs->len);  in cp2112_i2c_xfer()
515 	if (ret < 0)  in cp2112_i2c_xfer()
517 	if (ret != msgs->len) {  in cp2112_i2c_xfer()
518 		hid_warn(hdev, "short read: %d < %d\n", ret, msgs->len);  in cp2112_i2c_xfer()
519 		ret = -EIO;  in cp2112_i2c_xfer()
525 	ret = 1;  in cp2112_i2c_xfer()
529 	hid_dbg(hdev, "I2C transfer finished: %d\n", ret);  in cp2112_i2c_xfer()
530 	return ret;  in cp2112_i2c_xfer()
544 	int ret;  in cp2112_xfer()  local
620 	ret = hid_hw_power(hdev, PM_HINT_FULLON);  in cp2112_xfer()
621 	if (ret < 0) {  in cp2112_xfer()
622 		hid_err(hdev, "power management error: %d\n", ret);  in cp2112_xfer()
623 		return ret;  in cp2112_xfer()
626 	ret = cp2112_hid_output(hdev, buf, count, HID_OUTPUT_REPORT);  in cp2112_xfer()
627 	if (ret < 0) {  in cp2112_xfer()
628 		hid_warn(hdev, "Error starting transaction: %d\n", ret);  in cp2112_xfer()
633 		ret = cp2112_xfer_status(dev);  in cp2112_xfer()
634 		if (-EBUSY == ret)  in cp2112_xfer()
636 		if (ret < 0)  in cp2112_xfer()
646 		ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);  in cp2112_xfer()
647 		if (ret < 0)  in cp2112_xfer()
649 				 ret);  in cp2112_xfer()
651 		ret = -ETIMEDOUT;  in cp2112_xfer()
656 		ret = 0;  in cp2112_xfer()
661 		read_length = ret;  in cp2112_xfer()
663 	ret = cp2112_read(dev, buf, read_length);  in cp2112_xfer()
664 	if (ret < 0)  in cp2112_xfer()
666 	if (ret != read_length) {  in cp2112_xfer()
667 		hid_warn(hdev, "short read: %d < %zd\n", ret, read_length);  in cp2112_xfer()
668 		ret = -EIO;  in cp2112_xfer()
682 			ret = -EPROTO;  in cp2112_xfer()
690 	ret = 0;  in cp2112_xfer()
693 	hid_dbg(hdev, "transfer finished: %d\n", ret);  in cp2112_xfer()
694 	return ret;  in cp2112_xfer()
718 	int ret;  in cp2112_get_usb_config()  local
720 	ret = cp2112_hid_get(hdev, CP2112_USB_CONFIG, (u8 *)cfg, sizeof(*cfg),  in cp2112_get_usb_config()
722 	if (ret != sizeof(*cfg)) {  in cp2112_get_usb_config()
723 		hid_err(hdev, "error reading usb config: %d\n", ret);  in cp2112_get_usb_config()
724 		if (ret < 0)  in cp2112_get_usb_config()
725 			return ret;  in cp2112_get_usb_config()
735 	int ret;  in cp2112_set_usb_config()  local
739 	ret = cp2112_hid_output(hdev, (u8 *)cfg, sizeof(*cfg),  in cp2112_set_usb_config()
741 	if (ret != sizeof(*cfg)) {  in cp2112_set_usb_config()
742 		hid_err(hdev, "error writing usb config: %d\n", ret);  in cp2112_set_usb_config()
743 		if (ret < 0)  in cp2112_set_usb_config()
744 			return ret;  in cp2112_set_usb_config()
760 	int ret = cp2112_get_usb_config(hdev, &cfg); \
761 	if (ret) \
762 		return ret; \
764 	ret = cp2112_set_usb_config(hdev, &cfg); \
765 	if (ret) \
766 		return ret; \
775 	int ret = cp2112_get_usb_config(hdev, &cfg); \
776 	if (ret) \
777 		return ret; \
842 	int ret;  in pstr_store()  local
846 	ret = utf8s_to_utf16s(buf, count, UTF16_LITTLE_ENDIAN,  in pstr_store()
849 	report.length = ret * sizeof(report.string[0]) + 2;  in pstr_store()
852 	ret = cp2112_hid_output(hdev, &report.report, report.length + 1,  in pstr_store()
854 	if (ret != report.length + 1) {  in pstr_store()
856 			ret);  in pstr_store()
857 		if (ret < 0)  in pstr_store()
858 			return ret;  in pstr_store()
874 	int ret;  in pstr_show()  local
876 	ret = cp2112_hid_get(hdev, attr->report, &report.report,  in pstr_show()
878 	if (ret < 3) {  in pstr_show()
880 			ret);  in pstr_show()
881 		if (ret < 0)  in pstr_show()
882 			return ret;  in pstr_show()
892 	length = report.length > ret - 1 ? ret - 1 : report.length;  in pstr_show()
894 	ret = utf16s_to_utf8s(report.string, length, UTF16_LITTLE_ENDIAN, buf,  in pstr_show()
896 	buf[ret++] = '\n';  in pstr_show()
897 	return ret;  in pstr_show()
936 	int ret;  in chmod_sysfs_attrs()  local
938 	ret = cp2112_hid_get(hdev, CP2112_LOCK_BYTE, buf, sizeof(buf),  in chmod_sysfs_attrs()
940 	if (ret != sizeof(buf)) {  in chmod_sysfs_attrs()
941 		hid_err(hdev, "error reading lock byte: %d\n", ret);  in chmod_sysfs_attrs()
947 		ret = sysfs_chmod_file(&hdev->dev.kobj, *attr, mode);  in chmod_sysfs_attrs()
948 		if (ret < 0)  in chmod_sysfs_attrs()
960 	int ret;  in cp2112_probe()  local
962 	ret = hid_parse(hdev);  in cp2112_probe()
963 	if (ret) {  in cp2112_probe()
965 		return ret;  in cp2112_probe()
968 	ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);  in cp2112_probe()
969 	if (ret) {  in cp2112_probe()
971 		return ret;  in cp2112_probe()
974 	ret = hid_hw_open(hdev);  in cp2112_probe()
975 	if (ret) {  in cp2112_probe()
980 	ret = hid_hw_power(hdev, PM_HINT_FULLON);  in cp2112_probe()
981 	if (ret < 0) {  in cp2112_probe()
982 		hid_err(hdev, "power management error: %d\n", ret);  in cp2112_probe()
986 	ret = cp2112_hid_get(hdev, CP2112_GET_VERSION_INFO, buf, sizeof(buf),  in cp2112_probe()
988 	if (ret != sizeof(buf)) {  in cp2112_probe()
990 		if (ret >= 0)  in cp2112_probe()
991 			ret = -EIO;  in cp2112_probe()
998 	ret = cp2112_hid_get(hdev, CP2112_SMBUS_CONFIG, (u8 *)&config,  in cp2112_probe()
1000 	if (ret != sizeof(config)) {  in cp2112_probe()
1002 		if (ret >= 0)  in cp2112_probe()
1003 			ret = -EIO;  in cp2112_probe()
1009 	ret = cp2112_hid_output(hdev, (u8 *)&config, sizeof(config),  in cp2112_probe()
1011 	if (ret != sizeof(config)) {  in cp2112_probe()
1013 		if (ret >= 0)  in cp2112_probe()
1014 			ret = -EIO;  in cp2112_probe()
1020 		ret = -ENOMEM;  in cp2112_probe()
1036 	ret = i2c_add_adapter(&dev->adap);  in cp2112_probe()
1039 	if (ret) {  in cp2112_probe()
1056 	ret = gpiochip_add(&dev->gc);  in cp2112_probe()
1057 	if (ret < 0) {  in cp2112_probe()
1062 	ret = sysfs_create_group(&hdev->dev.kobj, &cp2112_attr_group);  in cp2112_probe()
1063 	if (ret < 0) {  in cp2112_probe()
1071 	return ret;  in cp2112_probe()
1085 	return ret;  in cp2112_probe()