595 static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len,  in mceusb_dev_printdata()  argument
601 	struct device *dev = ir->dev;  in mceusb_dev_printdata()
606 	if (ir->flags.microsoft_gen1 && !out && !offset)  in mceusb_dev_printdata()
750 		dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem);  in mceusb_dev_printdata()
760 static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent)  in mceusb_defer_kevent()  argument
762 	set_bit(kevent, &ir->kevent_flags);  in mceusb_defer_kevent()
763 	if (!schedule_work(&ir->kevent))  in mceusb_defer_kevent()
764 		dev_err(ir->dev, "kevent %d may have been dropped", kevent);  in mceusb_defer_kevent()
766 		dev_dbg(ir->dev, "kevent %d scheduled", kevent);  in mceusb_defer_kevent()
771 	struct mceusb_dev *ir;  in mce_async_callback()  local
777 	ir = urb->context;  in mce_async_callback()
784 		mceusb_dev_printdata(ir, urb->transfer_buffer, len,  in mce_async_callback()
795 		dev_err(ir->dev, "Error: request urb status = %d (TX HALT)",  in mce_async_callback()
797 		mceusb_defer_kevent(ir, EVENT_TX_HALT);  in mce_async_callback()
801 		dev_err(ir->dev, "Error: request urb status = %d", urb->status);  in mce_async_callback()
811 static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,  in mce_request_packet()  argument
816 	struct device *dev = ir->dev;  in mce_request_packet()
832 	if (usb_endpoint_xfer_int(ir->usb_ep_out))  in mce_request_packet()
833 		usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out,  in mce_request_packet()
834 				 async_buf, size, mce_async_callback, ir,  in mce_request_packet()
835 				 ir->usb_ep_out->bInterval);  in mce_request_packet()
837 		usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out,  in mce_request_packet()
838 				  async_buf, size, mce_async_callback, ir);  in mce_request_packet()
854 static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)  in mce_async_out()  argument
858 	if (ir->need_reset) {  in mce_async_out()
859 		ir->need_reset = false;  in mce_async_out()
860 		mce_request_packet(ir, DEVICE_RESUME, rsize);  in mce_async_out()
864 	mce_request_packet(ir, data, size);  in mce_async_out()
871 	struct mceusb_dev *ir = dev->priv;  in mceusb_tx_ir()  local
879 	cmdbuf[cmdcount++] = ir->tx_mask;  in mceusb_tx_ir()
882 	mce_async_out(ir, cmdbuf, cmdcount);  in mceusb_tx_ir()
925 	mce_async_out(ir, cmdbuf, cmdcount);  in mceusb_tx_ir()
934 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_tx_mask()  local
937 	int emitters = ir->num_txports ? ir->num_txports : 2;  in mceusb_set_tx_mask()
942 	if (ir->flags.tx_mask_normal)  in mceusb_set_tx_mask()
943 		ir->tx_mask = mask;  in mceusb_set_tx_mask()
945 		ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?  in mceusb_set_tx_mask()
954 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_tx_carrier()  local
961 	if (ir->carrier != carrier) {  in mceusb_set_tx_carrier()
964 			ir->carrier = carrier;  in mceusb_set_tx_carrier()
967 			dev_dbg(ir->dev, "disabling carrier modulation");  in mceusb_set_tx_carrier()
968 			mce_async_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_tx_carrier()
975 				ir->carrier = carrier;  in mceusb_set_tx_carrier()
978 				dev_dbg(ir->dev, "requesting %u HZ carrier",  in mceusb_set_tx_carrier()
982 				mce_async_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_tx_carrier()
997 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_timeout()  local
1005 	mce_async_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_timeout()
1008 	mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));  in mceusb_set_timeout()
1020 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_rx_wideband()  local
1024 	dev_dbg(ir->dev, "select %s-range receive sensor",  in mceusb_set_rx_wideband()
1027 		ir->wideband_rx_enabled = true;  in mceusb_set_rx_wideband()
1030 		ir->wideband_rx_enabled = false;  in mceusb_set_rx_wideband()
1033 	mce_async_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_rx_wideband()
1046 	struct mceusb_dev *ir = dev->priv;  in mceusb_set_rx_carrier_report()  local
1050 	dev_dbg(ir->dev, "%s short-range receiver carrier reporting",  in mceusb_set_rx_carrier_report()
1053 		ir->carrier_report_enabled = true;  in mceusb_set_rx_carrier_report()
1054 		if (!ir->learning_active) {  in mceusb_set_rx_carrier_report()
1056 			mce_async_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_rx_carrier_report()
1059 		ir->carrier_report_enabled = false;  in mceusb_set_rx_carrier_report()
1065 		if (ir->learning_active && !ir->wideband_rx_enabled) {  in mceusb_set_rx_carrier_report()
1067 			mce_async_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_set_rx_carrier_report()
1079 static void mceusb_handle_command(struct mceusb_dev *ir, int index)  in mceusb_handle_command()  argument
1082 	u8 hi = ir->buf_in[index + 1] & 0xff;  in mceusb_handle_command()
1083 	u8 lo = ir->buf_in[index + 2] & 0xff;  in mceusb_handle_command()
1087 	switch (ir->buf_in[index]) {  in mceusb_handle_command()
1090 		if ((ir->buf_in[index + 4] & 0xff) == 0x00)  in mceusb_handle_command()
1091 			ir->txports_cabled |= 1 << hi;  in mceusb_handle_command()
1096 		ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);  in mceusb_handle_command()
1099 		ir->num_txports = hi;  in mceusb_handle_command()
1100 		ir->num_rxports = lo;  in mceusb_handle_command()
1111 		if (ir->carrier_report_enabled && ir->learning_active &&  in mceusb_handle_command()
1112 		    ir->pulse_tunit > 0) {  in mceusb_handle_command()
1118 			cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0;  in mceusb_handle_command()
1122 					ir->pulse_tunit;  in mceusb_handle_command()
1123 …dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = …  in mceusb_handle_command()
1124 				rawir.carrier, ir->pulse_count, carrier_cycles,  in mceusb_handle_command()
1125 				ir->pulse_tunit, ir->flags.rx2);  in mceusb_handle_command()
1126 			ir_raw_event_store(ir->rc, &rawir);  in mceusb_handle_command()
1132 		ir->emver = hi;  in mceusb_handle_command()
1135 		ir->tx_mask = hi;  in mceusb_handle_command()
1138 		ir->learning_active = ((hi & 0x02) == 0x02);  in mceusb_handle_command()
1139 		if (ir->rxports_active != hi) {  in mceusb_handle_command()
1140 			dev_info(ir->dev, "%s-range (0x%x) receiver active",  in mceusb_handle_command()
1141 				 ir->learning_active ? "short" : "long", hi);  in mceusb_handle_command()
1142 			ir->rxports_active = hi;  in mceusb_handle_command()
1146 		ir->need_reset = true;  in mceusb_handle_command()
1153 static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)  in mceusb_process_ir_data()  argument
1160 	if (ir->flags.microsoft_gen1)  in mceusb_process_ir_data()
1168 		switch (ir->parser_state) {  in mceusb_process_ir_data()
1170 			ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]);  in mceusb_process_ir_data()
1171 			mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1,  in mceusb_process_ir_data()
1172 					     ir->rem + 2, false);  in mceusb_process_ir_data()
1173 			mceusb_handle_command(ir, i);  in mceusb_process_ir_data()
1174 			ir->parser_state = CMD_DATA;  in mceusb_process_ir_data()
1177 			ir->rem--;  in mceusb_process_ir_data()
1179 			rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);  in mceusb_process_ir_data()
1180 			rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK);  in mceusb_process_ir_data()
1182 				dev_warn(ir->dev, "nonsensical irdata %02x with duration 0",  in mceusb_process_ir_data()
1183 					 ir->buf_in[i]);  in mceusb_process_ir_data()
1187 				ir->pulse_tunit += rawir.duration;  in mceusb_process_ir_data()
1188 				ir->pulse_count++;  in mceusb_process_ir_data()
1192 			dev_dbg(ir->dev, "Storing %s %u ns (%02x)",  in mceusb_process_ir_data()
1194 				rawir.duration,	ir->buf_in[i]);  in mceusb_process_ir_data()
1196 			if (ir_raw_event_store_with_filter(ir->rc, &rawir))  in mceusb_process_ir_data()
1200 			ir->rem--;  in mceusb_process_ir_data()
1205 			ir->cmd = ir->buf_in[i];  in mceusb_process_ir_data()
1206 			if ((ir->cmd == MCE_CMD_PORT_IR) ||  in mceusb_process_ir_data()
1207 			    ((ir->cmd & MCE_PORT_MASK) !=  in mceusb_process_ir_data()
1209 				ir->parser_state = SUBCMD;  in mceusb_process_ir_data()
1212 			ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);  in mceusb_process_ir_data()
1213 			mceusb_dev_printdata(ir, ir->buf_in, buf_len,  in mceusb_process_ir_data()
1214 					     i, ir->rem + 1, false);  in mceusb_process_ir_data()
1215 			if (ir->rem) {  in mceusb_process_ir_data()
1216 				ir->parser_state = PARSE_IRDATA;  in mceusb_process_ir_data()
1220 				rawir.duration = ir->rc->timeout;  in mceusb_process_ir_data()
1221 				if (ir_raw_event_store_with_filter(ir->rc,  in mceusb_process_ir_data()
1224 				ir->pulse_tunit = 0;  in mceusb_process_ir_data()
1225 				ir->pulse_count = 0;  in mceusb_process_ir_data()
1230 		if (ir->parser_state != CMD_HEADER && !ir->rem)  in mceusb_process_ir_data()
1231 			ir->parser_state = CMD_HEADER;  in mceusb_process_ir_data()
1234 		dev_dbg(ir->dev, "processed IR data");  in mceusb_process_ir_data()
1235 		ir_raw_event_handle(ir->rc);  in mceusb_process_ir_data()
1241 	struct mceusb_dev *ir;  in mceusb_dev_recv()  local
1246 	ir = urb->context;  in mceusb_dev_recv()
1247 	if (!ir) {  in mceusb_dev_recv()
1255 		mceusb_process_ir_data(ir, urb->actual_length);  in mceusb_dev_recv()
1266 		dev_err(ir->dev, "Error: urb status = %d (RX HALT)",  in mceusb_dev_recv()
1268 		mceusb_defer_kevent(ir, EVENT_RX_HALT);  in mceusb_dev_recv()
1272 		dev_err(ir->dev, "Error: urb status = %d", urb->status);  in mceusb_dev_recv()
1279 static void mceusb_get_emulator_version(struct mceusb_dev *ir)  in mceusb_get_emulator_version()  argument
1282 	ir->emver = 1;  in mceusb_get_emulator_version()
1283 	mce_async_out(ir, GET_EMVER, sizeof(GET_EMVER));  in mceusb_get_emulator_version()
1286 static void mceusb_gen1_init(struct mceusb_dev *ir)  in mceusb_gen1_init()  argument
1289 	struct device *dev = ir->dev;  in mceusb_gen1_init()
1302 	ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1310 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1317 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1323 	ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),  in mceusb_gen1_init()
1329 	mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));  in mceusb_gen1_init()
1332 	mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));  in mceusb_gen1_init()
1337 static void mceusb_gen2_init(struct mceusb_dev *ir)  in mceusb_gen2_init()  argument
1340 	mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME));  in mceusb_gen2_init()
1343 	mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION));  in mceusb_gen2_init()
1346 	mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));  in mceusb_gen2_init()
1349 static void mceusb_get_parameters(struct mceusb_dev *ir)  in mceusb_get_parameters()  argument
1356 	ir->num_txports = 2;  in mceusb_get_parameters()
1357 	ir->num_rxports = 2;  in mceusb_get_parameters()
1360 	mce_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));  in mceusb_get_parameters()
1363 	mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));  in mceusb_get_parameters()
1365 	if (ir->num_txports && !ir->flags.no_tx)  in mceusb_get_parameters()
1367 		mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));  in mceusb_get_parameters()
1370 	mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));  in mceusb_get_parameters()
1373 	mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));  in mceusb_get_parameters()
1375 	for (i = 0; i < ir->num_txports; i++) {  in mceusb_get_parameters()
1377 		mce_async_out(ir, cmdbuf, sizeof(cmdbuf));  in mceusb_get_parameters()
1381 static void mceusb_flash_led(struct mceusb_dev *ir)  in mceusb_flash_led()  argument
1383 	if (ir->emver < 2)  in mceusb_flash_led()
1386 	mce_async_out(ir, FLASH_LED, sizeof(FLASH_LED));  in mceusb_flash_led()
1398 	struct mceusb_dev *ir =  in mceusb_deferred_kevent()  local
1402 	if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) {  in mceusb_deferred_kevent()
1403 		usb_unlink_urb(ir->urb_in);  in mceusb_deferred_kevent()
1404 		status = usb_clear_halt(ir->usbdev, ir->pipe_in);  in mceusb_deferred_kevent()
1406 			dev_err(ir->dev, "rx clear halt error %d",  in mceusb_deferred_kevent()
1409 		clear_bit(EVENT_RX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1411 			status = usb_submit_urb(ir->urb_in, GFP_KERNEL);  in mceusb_deferred_kevent()
1413 				dev_err(ir->dev,  in mceusb_deferred_kevent()
1420 	if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) {  in mceusb_deferred_kevent()
1421 		status = usb_clear_halt(ir->usbdev, ir->pipe_out);  in mceusb_deferred_kevent()
1423 			dev_err(ir->dev, "tx clear halt error %d", status);  in mceusb_deferred_kevent()
1424 		clear_bit(EVENT_TX_HALT, &ir->kevent_flags);  in mceusb_deferred_kevent()
1428 static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)  in mceusb_init_rc_dev()  argument
1430 	struct usb_device *udev = ir->usbdev;  in mceusb_init_rc_dev()
1431 	struct device *dev = ir->dev;  in mceusb_init_rc_dev()
1441 	snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",  in mceusb_init_rc_dev()
1442 		 mceusb_model[ir->model].name ?  in mceusb_init_rc_dev()
1443 			mceusb_model[ir->model].name :  in mceusb_init_rc_dev()
1445 		 le16_to_cpu(ir->usbdev->descriptor.idVendor),  in mceusb_init_rc_dev()
1446 		 le16_to_cpu(ir->usbdev->descriptor.idProduct));  in mceusb_init_rc_dev()
1448 	usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));  in mceusb_init_rc_dev()
1450 	rc->device_name = ir->name;  in mceusb_init_rc_dev()
1451 	rc->input_phys = ir->phys;  in mceusb_init_rc_dev()
1452 	usb_to_input_id(ir->usbdev, &rc->input_id);  in mceusb_init_rc_dev()
1454 	rc->priv = ir;  in mceusb_init_rc_dev()
1458 	if (!mceusb_model[ir->model].broken_irtimeout) {  in mceusb_init_rc_dev()
1468 	if (!ir->flags.no_tx) {  in mceusb_init_rc_dev()
1473 	if (ir->flags.rx2 > 0) {  in mceusb_init_rc_dev()
1489 	if (mceusb_model[ir->model].rc_map)  in mceusb_init_rc_dev()
1490 		rc->map_name = mceusb_model[ir->model].rc_map;  in mceusb_init_rc_dev()
1513 	struct mceusb_dev *ir = NULL;  in mceusb_dev_probe()  local
1572 	ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);  in mceusb_dev_probe()
1573 	if (!ir)  in mceusb_dev_probe()
1576 	ir->pipe_in = pipe;  in mceusb_dev_probe()
1577 	ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);  in mceusb_dev_probe()
1578 	if (!ir->buf_in)  in mceusb_dev_probe()
1581 	ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);  in mceusb_dev_probe()
1582 	if (!ir->urb_in)  in mceusb_dev_probe()
1585 	ir->usbdev = usb_get_dev(dev);  in mceusb_dev_probe()
1586 	ir->dev = &intf->dev;  in mceusb_dev_probe()
1587 	ir->len_in = maxp;  in mceusb_dev_probe()
1588 	ir->flags.microsoft_gen1 = is_microsoft_gen1;  in mceusb_dev_probe()
1589 	ir->flags.tx_mask_normal = tx_mask_normal;  in mceusb_dev_probe()
1590 	ir->flags.no_tx = mceusb_model[model].no_tx;  in mceusb_dev_probe()
1591 	ir->flags.rx2 = mceusb_model[model].rx2;  in mceusb_dev_probe()
1592 	ir->model = model;  in mceusb_dev_probe()
1595 	ir->usb_ep_out = ep_out;  in mceusb_dev_probe()
1597 		ir->pipe_out = usb_sndintpipe(ir->usbdev,  in mceusb_dev_probe()
1600 		ir->pipe_out = usb_sndbulkpipe(ir->usbdev,  in mceusb_dev_probe()
1617 	INIT_WORK(&ir->kevent, mceusb_deferred_kevent);  in mceusb_dev_probe()
1619 	ir->rc = mceusb_init_rc_dev(ir);  in mceusb_dev_probe()
1620 	if (!ir->rc)  in mceusb_dev_probe()
1625 		usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,  in mceusb_dev_probe()
1626 				 mceusb_dev_recv, ir, ep_in->bInterval);  in mceusb_dev_probe()
1628 		usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,  in mceusb_dev_probe()
1629 				  mceusb_dev_recv, ir);  in mceusb_dev_probe()
1631 	ir->urb_in->transfer_dma = ir->dma_in;  in mceusb_dev_probe()
1632 	ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;  in mceusb_dev_probe()
1636 	res = usb_submit_urb(ir->urb_in, GFP_KERNEL);  in mceusb_dev_probe()
1641 	mceusb_get_emulator_version(ir);  in mceusb_dev_probe()
1644 	if (ir->flags.microsoft_gen1)  in mceusb_dev_probe()
1645 		mceusb_gen1_init(ir);  in mceusb_dev_probe()
1647 		mceusb_gen2_init(ir);  in mceusb_dev_probe()
1649 	mceusb_get_parameters(ir);  in mceusb_dev_probe()
1651 	mceusb_flash_led(ir);  in mceusb_dev_probe()
1653 	if (!ir->flags.no_tx)  in mceusb_dev_probe()
1654 		mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);  in mceusb_dev_probe()
1656 	usb_set_intfdata(intf, ir);  in mceusb_dev_probe()
1659 	device_set_wakeup_capable(ir->dev, true);  in mceusb_dev_probe()
1660 	device_set_wakeup_enable(ir->dev, true);  in mceusb_dev_probe()
1663 		name, ir->emver);  in mceusb_dev_probe()
1665 		 ir->num_txports, ir->txports_cabled,  in mceusb_dev_probe()
1666 		 ir->num_rxports, ir->rxports_active);  in mceusb_dev_probe()
1672 	cancel_work_sync(&ir->kevent);  in mceusb_dev_probe()
1673 	usb_put_dev(ir->usbdev);  in mceusb_dev_probe()
1674 	usb_kill_urb(ir->urb_in);  in mceusb_dev_probe()
1675 	usb_free_urb(ir->urb_in);  in mceusb_dev_probe()
1677 	usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);  in mceusb_dev_probe()
1679 	kfree(ir);  in mceusb_dev_probe()
1690 	struct mceusb_dev *ir = usb_get_intfdata(intf);  in mceusb_dev_disconnect()  local
1694 	if (!ir)  in mceusb_dev_disconnect()
1697 	ir->usbdev = NULL;  in mceusb_dev_disconnect()
1698 	cancel_work_sync(&ir->kevent);  in mceusb_dev_disconnect()
1699 	rc_unregister_device(ir->rc);  in mceusb_dev_disconnect()
1700 	usb_kill_urb(ir->urb_in);  in mceusb_dev_disconnect()
1701 	usb_free_urb(ir->urb_in);  in mceusb_dev_disconnect()
1702 	usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);  in mceusb_dev_disconnect()
1705 	kfree(ir);  in mceusb_dev_disconnect()
1710 	struct mceusb_dev *ir = usb_get_intfdata(intf);  in mceusb_dev_suspend()  local
1711 	dev_info(ir->dev, "suspend");  in mceusb_dev_suspend()
1712 	usb_kill_urb(ir->urb_in);  in mceusb_dev_suspend()
1718 	struct mceusb_dev *ir = usb_get_intfdata(intf);  in mceusb_dev_resume()  local
1719 	dev_info(ir->dev, "resume");  in mceusb_dev_resume()
1720 	if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))  in mceusb_dev_resume()