[ 47.292023] usb 4-1.5: new full-speed USB device number 5 using usb20_host
[ 47.390334] usb 4-1.5: New USB device found, idVendor=0c45, idProduct=8420
[ 47.390484] usb 4-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 47.390558] usb 4-1.5: Product: ZZDNEWtouch
[ 47.390644] usb 4-1.5: Manufacturer: ONEZZDGGlectronics
[ 47.428495] input: ONEZZDGGlectronics ZZDNEWtouch as /devices/platform/ff540000.usb/usb4/4-1/4-1.5/4-1.5:1.0/0003:0C45:8420.0003/input/input5
04-08 01:12:27.920 522 569 D EventHub: No input device configuration file found for device 'ONEZZDGGlectronics ZZDNEWtouch'.
04-08 01:12:27.920 522 569 I EventHub: New device: id=4, fd=135, path='/dev/input/event1', name='ONEZZDGGlectronics ZZDNEWtouch', classes=0x14, configuration='/system/usr/idc/generic.idc', keyLayout='', keyCharacterMap='', builtinKeyboard=false, wakeMechanism=EPOLLWAKEUP, usingClockIoctl=true
hub_probe(struct usb_interface *intf, const struct usb_device_id *id)
hub_event(struct work_struct *work)
void port_event(struct usb_hub *hub, int port1) __must_hold(&port_dev->status_lock)
hub_port_connect_change(struct usb_hub *hub, int port1,u16 portstatus, u16 portchange)
hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,u16 portchange)
udev = usb_alloc_dev(hdev, hdev->bus, port1);
device_initialize(&dev->dev);
dev->dev.bus = &usb_bus_type;
dev->dev.type = &usb_device_type;
dev->dev.groups = usb_device_groups;
hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,int retry_counter)
retval = usb_get_device_descriptor(udev, 8);
usb_get_descriptor(dev, USB_DT_DEVICE, 0, desc, size);
retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE);usb总线的match函数：
usb_device_match
usb_match_id(intf, usb_drv->id_table)
usb_match_one_id(interface, id)
usb_match_device(dev, id)
Insert the mouse for comparison:
[ 1631.758340] usb 4-1.5: new low-speed USB device number 14 using usb20_host
[ 1631.858686] usb 4-1.5: New USB device found, idVendor=093a, idProduct=2510
[ 1631.858810] usb 4-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1631.858902] usb 4-1.5: Product: USB Optical Mouse
[ 1631.858969] usb 4-1.5: Manufacturer: PixArt
[ 1631.878544] input: PixArt USB Optical Mouse as /devices/platform/ff540000.usb/usb4/4-1/4-1.5/4-1.5:1.0/0003:093A:2510.0004/input/input7
[ 1631.880336] hid-generic 0003:093A:2510.0004: input,hidraw0: USB HID v1.11 Mouse [PixArt USB Optical Mouse] on usb-ff540000.usb-1.5/input0
