⭐ 欢迎来到虫虫下载站! | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站

📄 hid-core.c

📁 linux-2.6.15.6
💻 C
📖 第 1 页 / 共 4 页
字号:
	{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_CASSY, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_POCKETCASSY, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_MOBILECASSY, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_JWM, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_DMMP, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_UMIP, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_VIDEOCOM, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_COM3LAB, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_TELEPORT, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_NETWORKANALYSER, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_LD, USB_DEVICE_ID_POWERCONTROL, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 2, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 3, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 4, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 1, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 2, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 3, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 4, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 1, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 2, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 3, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 4, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 5, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 7, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 8, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 9, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 1, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 2, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 3, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 4, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 5, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 7, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 1, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 2, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 3, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO + 4, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 5, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 6, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PTU, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 1, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 2, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 5, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_CINTIQ, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_DTF, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302, HID_QUIRK_IGNORE },	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },	{ USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_KEYBOARD, HID_QUIRK_NOGET},	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_USBHUB_KB, HID_QUIRK_NOGET},	{ USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET },	{ USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_POWERMOUSE, HID_QUIRK_2WHEEL_POWERMOUSE },	{ USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 },	{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_5 },	{ USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },	{ USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },	{ USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },	{ USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },	{ USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },	{ USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },	{ USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },	{ USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },	{ USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },	{ USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },	{ 0, 0 }};/* * Traverse the supplied list of reports and find the longest */static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max){	struct hid_report *report;	int size;	list_for_each_entry(report, &hid->report_enum[type].report_list, list) {		size = ((report->size - 1) >> 3) + 1;		if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered)			size++;		if (*max < size)			*max = size;	}}static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid){	if (!(hid->inbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->inbuf_dma)))		return -1;	if (!(hid->outbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->outbuf_dma)))		return -1;	if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma)))		return -1;	if (!(hid->ctrlbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->ctrlbuf_dma)))		return -1;	return 0;}static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid){	if (hid->inbuf)		usb_buffer_free(dev, hid->bufsize, hid->inbuf, hid->inbuf_dma);	if (hid->outbuf)		usb_buffer_free(dev, hid->bufsize, hid->outbuf, hid->outbuf_dma);	if (hid->cr)		usb_buffer_free(dev, sizeof(*(hid->cr)), hid->cr, hid->cr_dma);	if (hid->ctrlbuf)		usb_buffer_free(dev, hid->bufsize, hid->ctrlbuf, hid->ctrlbuf_dma);}static struct hid_device *usb_hid_configure(struct usb_interface *intf){	struct usb_host_interface *interface = intf->cur_altsetting;	struct usb_device *dev = interface_to_usbdev (intf);	struct hid_descriptor *hdesc;	struct hid_device *hid;	unsigned quirks = 0, rsize = 0;	char *rdesc;	int n, len, insize = 0;	for (n = 0; hid_blacklist[n].idVendor; n++)		if ((hid_blacklist[n].idVendor == le16_to_cpu(dev->descriptor.idVendor)) &&			(hid_blacklist[n].idProduct == le16_to_cpu(dev->descriptor.idProduct)))				quirks = hid_blacklist[n].quirks;	if (quirks & HID_QUIRK_IGNORE)		return NULL;	if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) &&	    (!interface->desc.bNumEndpoints ||	     usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {		dbg("class descriptor not present\n");		return NULL;	}	for (n = 0; n < hdesc->bNumDescriptors; n++)		if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)			rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);	if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {		dbg("weird size of report descriptor (%u)", rsize);		return NULL;	}	if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {		dbg("couldn't allocate rdesc memory");		return NULL;	}	hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);	if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {		dbg("reading report descriptor failed");		kfree(rdesc);		return NULL;	}#ifdef DEBUG_DATA	printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);	for (n = 0; n < rsize; n++)		printk(" %02x", (unsigned char) rdesc[n]);	printk("\n");#endif	if (!(hid = hid_parse_report(rdesc, n))) {		dbg("parsing report descriptor failed");		kfree(rdesc);		return NULL;	}	kfree(rdesc);	hid->quirks = quirks;	hid->bufsize = HID_MIN_BUFFER_SIZE;	hid_find_max_report(hid, HID_INPUT_REPORT, &hid->bufsize);	hid_find_max_report(hid, HID_OUTPUT_REPORT, &hid->bufsize);	hid_find_max_report(hid, HID_FEATURE_REPORT, &hid->bufsize);	if (hid->bufsize > HID_MAX_BUFFER_SIZE)		hid->bufsize = HID_MAX_BUFFER_SIZE;	hid_find_max_report(hid, HID_INPUT_REPORT, &insize);	if (insize > HID_MAX_BUFFER_SIZE)		insize = HID_MAX_BUFFER_SIZE;	if (hid_alloc_buffers(dev, hid)) {		hid_free_buffers(dev, hid);		goto fail;	}	for (n = 0; n < interface->desc.bNumEndpoints; n++) {		struct usb_endpoint_descriptor *endpoint;		int pipe;		int interval;		endpoint = &interface->endpoint[n].desc;		if ((endpoint->bmAttributes & 3) != 3)		/* Not an interrupt endpoint */			continue;		interval = endpoint->bInterval;		/* Change the polling interval of mice. */		if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)			interval = hid_mousepoll_interval;		if (endpoint->bEndpointAddress & USB_DIR_IN) {			if (hid->urbin)				continue;			if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL)))				goto fail;			pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);			usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, insize,					 hid_irq_in, hid, interval);			hid->urbin->transfer_dma = hid->inbuf_dma;			hid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;		} else {			if (hid->urbout)				continue;			if (!(hid->urbout = usb_alloc_urb(0, GFP_KERNEL)))				goto fail;			pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress);			usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0,					 hid_irq_out, hid, interval);			hid->urbout->transfer_dma = hid->outbuf_dma;			hid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;		}	}	if (!hid->urbin) {		err("couldn't find an input interrupt endpoint");		goto fail;	}	init_waitqueue_head(&hid->wait);	spin_lock_init(&hid->outlock);	spin_lock_init(&hid->ctrllock);	hid->version = le16_to_cpu(hdesc->bcdHID);	hid->country = hdesc->bCountryCode;	hid->dev = dev;	hid->intf = intf;	hid->ifnum = interface->desc.bInterfaceNumber;	hid->name[0] = 0;	if (dev->manufacturer)		strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));	if (dev->product) {		if (dev->manufacturer)			strlcat(hid->name, " ", sizeof(hid->name));		strlcat(hid->name, dev->product, sizeof(hid->name));	}	if (!strlen(hid->name))		snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",			 le16_to_cpu(dev->descriptor.idVendor),			 le16_to_cpu(dev->descriptor.idProduct));	usb_make_path(dev, hid->phys, sizeof(hid->phys));	strlcat(hid->phys, "/input", sizeof(hid->phys));	len = strlen(hid->phys);	if (len < sizeof(hid->phys) - 1)		snprintf(hid->phys + len, sizeof(hid->phys) - len,			 "%d", intf->altsetting[0].desc.bInterfaceNumber);	if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)		hid->uniq[0] = 0;	hid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);	if (!hid->urbctrl)		goto fail;	usb_fill_control_urb(hid->urbctrl, dev, 0, (void *) hid->cr,			     hid->ctrlbuf, 1, hid_ctrl, hid);	hid->urbctrl->setup_dma = hid->cr_dma;	hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;	hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);	/* May be needed for some devices */	usb_clear_halt(hid->dev, hid->urbin->pipe);	return hid;fail:	if (hid->urbin)		usb_free_urb(hid->urbin);	if (hid->urbout)		usb_free_urb(hid->urbout);	if (hid->urbctrl)		usb_free_urb(hid->urbctrl);	hid_free_buffers(dev, hid);	hid_free_device(hid);	return NULL;}static void hid_disconnect(struct usb_interface *intf){	struct hid_device *hid = usb_get_intfdata (intf);	if (!hid)		return;	usb_set_intfdata(intf, NULL);	usb_kill_urb(hid->urbin);	usb_kill_urb(hid->urbout);	usb_kill_urb(hid->urbctrl);	if (hid->claimed & HID_CLAIMED_INPUT)		hidinput_disconnect(hid);	if (hid->claimed & HID_CLAIMED_HIDDEV)		hiddev_disconnect(hid);	usb_free_urb(hid->urbin);	usb_free_urb(hid->urbctrl);	if (hid->urbout)		usb_free_urb(hid->urbout);	hid_free_buffers(hid->dev, hid);	hid_free_device(hid);}static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id){	struct hid_device *hid;	char path[64];	int i;	char *c;	dbg("HID probe called for ifnum %d",			intf->altsetting->desc.bInterfaceNumber);	if (!(hid = usb_hid_configure(intf)))		return -ENODEV;	hid_init_reports(hid);	hid_dump_device(hid);	if (!hidinput_connect(hid))		hid->claimed |= HID_CLAIMED_INPUT;	if (!hiddev_connect(hid))		hid->claimed |= HID_CLAIMED_HIDDEV;	usb_set_intfdata(intf, hid);	if (!hid->claimed) {		printk ("HID device not claimed by input or hiddev\n");		hid_disconnect(intf);		return -ENODEV;	}	printk(KERN_INFO);	if (hid->claimed & HID_CLAIMED_INPUT)		printk("input");	if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV))		printk(",");	if (hid->claimed & HID_CLAIMED_HIDDEV)		printk("hiddev%d", hid->minor);	c = "Device";	for (i = 0; i < hid->maxcollection; i++) {		if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&		    (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&		    (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {			c = hid_types[hid->collection[i].usage & 0xffff];			break;		}	}	usb_make_path(interface_to_usbdev(intf), path, 63);	printk(": USB HID v%x.%02x %s [%s] on %s\n",		hid->version >> 8, hid->version & 0xff, c, hid->name, path);	return 0;}static int hid_suspend(struct usb_interface *intf, pm_message_t message){	struct hid_device *hid = usb_get_intfdata (intf);	usb_kill_urb(hid->urbin);	dev_dbg(&intf->dev, "suspend\n");	return 0;}static int hid_resume(struct usb_interface *intf){	struct hid_device *hid = usb_get_intfdata (intf);	int status;	if (hid->open)		status = usb_submit_urb(hid->urbin, GFP_NOIO);	else		status = 0;	dev_dbg(&intf->dev, "resume status %d\n", status);	return status;}static struct usb_device_id hid_usb_ids [] = {	{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,		.bInterfaceClass = USB_INTERFACE_CLASS_HID },	{ }						/* Terminating entry */};MODULE_DEVICE_TABLE (usb, hid_usb_ids);static struct usb_driver hid_driver = {	.owner =	THIS_MODULE,	.name =		"usbhid",	.probe =	hid_probe,	.disconnect =	hid_disconnect,	.suspend =	hid_suspend,	.resume =	hid_resume,	.id_table =	hid_usb_ids,};static int __init hid_init(void){	int retval;	retval = hiddev_init();	if (retval)		goto hiddev_init_fail;	retval = usb_register(&hid_driver);	if (retval)		goto usb_register_fail;	info(DRIVER_VERSION ":" DRIVER_DESC);	return 0;usb_register_fail:	hiddev_exit();hiddev_init_fail:	return retval;}static void __exit hid_exit(void){	usb_deregister(&hid_driver);	hiddev_exit();}module_init(hid_init);module_exit(hid_exit);MODULE_AUTHOR(DRIVER_AUTHOR);MODULE_DESCRIPTION(DRIVER_DESC);MODULE_LICENSE(DRIVER_LICENSE);

⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -