176 	int ret;  in cp2112_gpio_direction_input()  local
178 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,  in cp2112_gpio_direction_input()
181 	if (ret != sizeof(buf)) {  in cp2112_gpio_direction_input()
182 		hid_err(hdev, "error requesting GPIO config: %d\n", ret);  in cp2112_gpio_direction_input()
183 		return ret;  in cp2112_gpio_direction_input()
189 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf, sizeof(buf),  in cp2112_gpio_direction_input()
191 	if (ret < 0) {  in cp2112_gpio_direction_input()
192 		hid_err(hdev, "error setting GPIO config: %d\n", ret);  in cp2112_gpio_direction_input()
193 		return ret;  in cp2112_gpio_direction_input()
205 	int ret;  in cp2112_gpio_set()  local
211 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_SET, buf, sizeof(buf),  in cp2112_gpio_set()
213 	if (ret < 0)  in cp2112_gpio_set()
214 		hid_err(hdev, "error setting GPIO values: %d\n", ret);  in cp2112_gpio_set()
223 	int ret;  in cp2112_gpio_get()  local
225 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_GET, buf, sizeof(buf),  in cp2112_gpio_get()
227 	if (ret != sizeof(buf)) {  in cp2112_gpio_get()
228 		hid_err(hdev, "error requesting GPIO values: %d\n", ret);  in cp2112_gpio_get()
229 		return ret;  in cp2112_gpio_get()
242 	int ret;  in cp2112_gpio_direction_output()  local
244 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf,  in cp2112_gpio_direction_output()
247 	if (ret != sizeof(buf)) {  in cp2112_gpio_direction_output()
248 		hid_err(hdev, "error requesting GPIO config: %d\n", ret);  in cp2112_gpio_direction_output()
249 		return ret;  in cp2112_gpio_direction_output()
255 	ret = hid_hw_raw_request(hdev, CP2112_GPIO_CONFIG, buf, sizeof(buf),  in cp2112_gpio_direction_output()
257 	if (ret < 0) {  in cp2112_gpio_direction_output()
258 		hid_err(hdev, "error setting GPIO config: %d\n", ret);  in cp2112_gpio_direction_output()
259 		return ret;  in cp2112_gpio_direction_output()
275 	int ret;  in cp2112_hid_get()  local
281 	ret = hid_hw_raw_request(hdev, report_number, buf, count,  in cp2112_hid_get()
285 	return ret;  in cp2112_hid_get()
292 	int ret;  in cp2112_hid_output()  local
299 		ret = hid_hw_output_report(hdev, buf, count);  in cp2112_hid_output()
301 		ret = hid_hw_raw_request(hdev, buf[0], buf, count, report_type,  in cp2112_hid_output()
305 	return ret;  in cp2112_hid_output()
310 	int ret = 0;  in cp2112_wait()  local
320 	ret = wait_event_interruptible_timeout(dev->wait,  in cp2112_wait()
322 	if (-ERESTARTSYS == ret)  in cp2112_wait()
323 		return ret;  in cp2112_wait()
324 	if (!ret)  in cp2112_wait()
335 	int ret;  in cp2112_xfer_status()  local
341 	ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);  in cp2112_xfer_status()
342 	if (ret < 0) {  in cp2112_xfer_status()
343 		hid_warn(hdev, "Error requesting status: %d\n", ret);  in cp2112_xfer_status()
344 		return ret;  in cp2112_xfer_status()
347 	ret = cp2112_wait(dev, &dev->xfer_avail);  in cp2112_xfer_status()
348 	if (ret)  in cp2112_xfer_status()
349 		return ret;  in cp2112_xfer_status()
358 	int ret;  in cp2112_read()  local
367 	ret = cp2112_hid_output(hdev, &report.report, sizeof(report),  in cp2112_read()
369 	if (ret < 0) {  in cp2112_read()
370 		hid_warn(hdev, "Error requesting data: %d\n", ret);  in cp2112_read()
371 		return ret;  in cp2112_read()
374 	ret = cp2112_wait(dev, &dev->read_avail);  in cp2112_read()
375 	if (ret)  in cp2112_read()
376 		return ret;  in cp2112_read()
478 	int ret;  in cp2112_i2c_xfer()  local
515 	ret = hid_hw_power(hdev, PM_HINT_FULLON);  in cp2112_i2c_xfer()
516 	if (ret < 0) {  in cp2112_i2c_xfer()
517 		hid_err(hdev, "power management error: %d\n", ret);  in cp2112_i2c_xfer()
518 		return ret;  in cp2112_i2c_xfer()
521 	ret = cp2112_hid_output(hdev, buf, count, HID_OUTPUT_REPORT);  in cp2112_i2c_xfer()
522 	if (ret < 0) {  in cp2112_i2c_xfer()
523 		hid_warn(hdev, "Error starting transaction: %d\n", ret);  in cp2112_i2c_xfer()
528 		ret = cp2112_xfer_status(dev);  in cp2112_i2c_xfer()
529 		if (-EBUSY == ret)  in cp2112_i2c_xfer()
531 		if (ret < 0)  in cp2112_i2c_xfer()
541 		ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);  in cp2112_i2c_xfer()
542 		if (ret < 0)  in cp2112_i2c_xfer()
544 				 ret);  in cp2112_i2c_xfer()
546 		ret = -ETIMEDOUT;  in cp2112_i2c_xfer()
551 		ret = cp2112_read(dev, read_buf + count, read_length - count);  in cp2112_i2c_xfer()
552 		if (ret < 0)  in cp2112_i2c_xfer()
554 		if (ret == 0) {  in cp2112_i2c_xfer()
556 			ret = -EIO;  in cp2112_i2c_xfer()
559 		count += ret;  in cp2112_i2c_xfer()
570 				ret, read_length - count + ret);  in cp2112_i2c_xfer()
571 			ret = -EIO;  in cp2112_i2c_xfer()
577 	ret = num;  in cp2112_i2c_xfer()
581 	hid_dbg(hdev, "I2C transfer finished: %d\n", ret);  in cp2112_i2c_xfer()
582 	return ret;  in cp2112_i2c_xfer()
596 	int ret;  in cp2112_xfer()  local
672 	ret = hid_hw_power(hdev, PM_HINT_FULLON);  in cp2112_xfer()
673 	if (ret < 0) {  in cp2112_xfer()
674 		hid_err(hdev, "power management error: %d\n", ret);  in cp2112_xfer()
675 		return ret;  in cp2112_xfer()
678 	ret = cp2112_hid_output(hdev, buf, count, HID_OUTPUT_REPORT);  in cp2112_xfer()
679 	if (ret < 0) {  in cp2112_xfer()
680 		hid_warn(hdev, "Error starting transaction: %d\n", ret);  in cp2112_xfer()
685 		ret = cp2112_xfer_status(dev);  in cp2112_xfer()
686 		if (-EBUSY == ret)  in cp2112_xfer()
688 		if (ret < 0)  in cp2112_xfer()
698 		ret = cp2112_hid_output(hdev, buf, 2, HID_OUTPUT_REPORT);  in cp2112_xfer()
699 		if (ret < 0)  in cp2112_xfer()
701 				 ret);  in cp2112_xfer()
703 		ret = -ETIMEDOUT;  in cp2112_xfer()
708 		ret = 0;  in cp2112_xfer()
713 		read_length = ret;  in cp2112_xfer()
715 	ret = cp2112_read(dev, buf, read_length);  in cp2112_xfer()
716 	if (ret < 0)  in cp2112_xfer()
718 	if (ret != read_length) {  in cp2112_xfer()
719 		hid_warn(hdev, "short read: %d < %zd\n", ret, read_length);  in cp2112_xfer()
720 		ret = -EIO;  in cp2112_xfer()
734 			ret = -EPROTO;  in cp2112_xfer()
742 	ret = 0;  in cp2112_xfer()
745 	hid_dbg(hdev, "transfer finished: %d\n", ret);  in cp2112_xfer()
746 	return ret;  in cp2112_xfer()
770 	int ret;  in cp2112_get_usb_config()  local
772 	ret = cp2112_hid_get(hdev, CP2112_USB_CONFIG, (u8 *)cfg, sizeof(*cfg),  in cp2112_get_usb_config()
774 	if (ret != sizeof(*cfg)) {  in cp2112_get_usb_config()
775 		hid_err(hdev, "error reading usb config: %d\n", ret);  in cp2112_get_usb_config()
776 		if (ret < 0)  in cp2112_get_usb_config()
777 			return ret;  in cp2112_get_usb_config()
787 	int ret;  in cp2112_set_usb_config()  local
791 	ret = cp2112_hid_output(hdev, (u8 *)cfg, sizeof(*cfg),  in cp2112_set_usb_config()
793 	if (ret != sizeof(*cfg)) {  in cp2112_set_usb_config()
794 		hid_err(hdev, "error writing usb config: %d\n", ret);  in cp2112_set_usb_config()
795 		if (ret < 0)  in cp2112_set_usb_config()
796 			return ret;  in cp2112_set_usb_config()
812 	int ret = cp2112_get_usb_config(hdev, &cfg); \
813 	if (ret) \
814 		return ret; \
816 	ret = cp2112_set_usb_config(hdev, &cfg); \
817 	if (ret) \
818 		return ret; \
827 	int ret = cp2112_get_usb_config(hdev, &cfg); \
828 	if (ret) \
829 		return ret; \
894 	int ret;  in pstr_store()  local
898 	ret = utf8s_to_utf16s(buf, count, UTF16_LITTLE_ENDIAN,  in pstr_store()
901 	report.length = ret * sizeof(report.string[0]) + 2;  in pstr_store()
904 	ret = cp2112_hid_output(hdev, &report.report, report.length + 1,  in pstr_store()
906 	if (ret != report.length + 1) {  in pstr_store()
908 			ret);  in pstr_store()
909 		if (ret < 0)  in pstr_store()
910 			return ret;  in pstr_store()
926 	int ret;  in pstr_show()  local
928 	ret = cp2112_hid_get(hdev, attr->report, &report.report,  in pstr_show()
930 	if (ret < 3) {  in pstr_show()
932 			ret);  in pstr_show()
933 		if (ret < 0)  in pstr_show()
934 			return ret;  in pstr_show()
944 	length = report.length > ret - 1 ? ret - 1 : report.length;  in pstr_show()
946 	ret = utf16s_to_utf8s(report.string, length, UTF16_LITTLE_ENDIAN, buf,  in pstr_show()
948 	buf[ret++] = '\n';  in pstr_show()
949 	return ret;  in pstr_show()
988 	int ret;  in chmod_sysfs_attrs()  local
990 	ret = cp2112_hid_get(hdev, CP2112_LOCK_BYTE, buf, sizeof(buf),  in chmod_sysfs_attrs()
992 	if (ret != sizeof(buf)) {  in chmod_sysfs_attrs()
993 		hid_err(hdev, "error reading lock byte: %d\n", ret);  in chmod_sysfs_attrs()
999 		ret = sysfs_chmod_file(&hdev->dev.kobj, *attr, mode);  in chmod_sysfs_attrs()
1000 		if (ret < 0)  in chmod_sysfs_attrs()
1012 	int ret;  in cp2112_probe()  local
1014 	ret = hid_parse(hdev);  in cp2112_probe()
1015 	if (ret) {  in cp2112_probe()
1017 		return ret;  in cp2112_probe()
1020 	ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);  in cp2112_probe()
1021 	if (ret) {  in cp2112_probe()
1023 		return ret;  in cp2112_probe()
1026 	ret = hid_hw_open(hdev);  in cp2112_probe()
1027 	if (ret) {  in cp2112_probe()
1032 	ret = hid_hw_power(hdev, PM_HINT_FULLON);  in cp2112_probe()
1033 	if (ret < 0) {  in cp2112_probe()
1034 		hid_err(hdev, "power management error: %d\n", ret);  in cp2112_probe()
1038 	ret = cp2112_hid_get(hdev, CP2112_GET_VERSION_INFO, buf, sizeof(buf),  in cp2112_probe()
1040 	if (ret != sizeof(buf)) {  in cp2112_probe()
1042 		if (ret >= 0)  in cp2112_probe()
1043 			ret = -EIO;  in cp2112_probe()
1050 	ret = cp2112_hid_get(hdev, CP2112_SMBUS_CONFIG, (u8 *)&config,  in cp2112_probe()
1052 	if (ret != sizeof(config)) {  in cp2112_probe()
1054 		if (ret >= 0)  in cp2112_probe()
1055 			ret = -EIO;  in cp2112_probe()
1061 	ret = cp2112_hid_output(hdev, (u8 *)&config, sizeof(config),  in cp2112_probe()
1063 	if (ret != sizeof(config)) {  in cp2112_probe()
1065 		if (ret >= 0)  in cp2112_probe()
1066 			ret = -EIO;  in cp2112_probe()
1072 		ret = -ENOMEM;  in cp2112_probe()
1089 	ret = i2c_add_adapter(&dev->adap);  in cp2112_probe()
1092 	if (ret) {  in cp2112_probe()
1109 	ret = gpiochip_add(&dev->gc);  in cp2112_probe()
1110 	if (ret < 0) {  in cp2112_probe()
1115 	ret = sysfs_create_group(&hdev->dev.kobj, &cp2112_attr_group);  in cp2112_probe()
1116 	if (ret < 0) {  in cp2112_probe()
1124 	return ret;  in cp2112_probe()
1138 	return ret;  in cp2112_probe()