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回复 #6 零二年的夏天 的帖子
查了内核的dmesg , 不能确定。
: lab31; dmesg| grep -i usb
usbcore: registered new driver usbfs
usbcore: registered new driver hub
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
USB1 USB2 USB3 USB4 EUSB SBRG PS2K PS2M PXHA PXHB EPC0 PCE1 EPC1 PCE2 P0P7
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10
hub 1-0:1.0: USB hub found
USB Universal Host Controller Interface driver v2.2
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
hub 4-0:1.0: USB hub found
usb 4-2: new full speed USB device using address 2
drivers/usb/serial/usb-serial.c: USB Serial support registered for Generic
usbcore: registered new driver usbserial_generic
usbcore: registered new driver usbserial
drivers/usb/serial/usb-serial.c: USB Serial Driver core v2.0
drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI SIO
drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI 8U232AM Compatible
drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI FT232BM Compatible
drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI FT2232C Compatible
drivers/usb/serial/usb-serial.c: USB Serial support registered for USB-UIRT Infrared Tranceiver
drivers/usb/serial/usb-serial.c: USB Serial support registered for Home-Electronics TIRA-1 IR Transceiver
usbcore: registered new driver ftdi_sio
drivers/usb/serial/ftdi_sio.c: v1.4.1:USB FTDI Serial Converters Driver
: lab31;
也查了 lsusb , 也不能确定。
: lab31; lsusb
Bus 004 Device 002: ID 0403:fc0c Future Technology Devices International, Ltd
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
: lab31; lsusb 004:002
usage: lsusb [-v] [-x] [-p <procpath>] [-s [<bus>:][<devnum>]] [-d [<vendor>]:[<device>]]
: lab31; lsusb -s 004:002
Bus 004 Device 002: ID 0403:fc0c Future Technology Devices International, Ltd
: lab31; lsusb-v -s 004:002
bash: lsusb-v: command not found
: lab31; lsusb -v -s 004:002
Bus 004 Device 002: ID 0403:fc0c Future Technology Devices International, Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0403 Future Technology Devices International, Ltd
idProduct 0xfc0c
bcdDevice 2.00
iManufacturer 1 Crystalfontz
iProduct 2 Crystalfontz CFA-631 USB LCD
iSerial 3 CF002219
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
MaxPower 200mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 Crystalfontz CFA-631 USB LCD
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type none
Usage Type Data
wMaxPacketSize 0x0040 bytes 64 once
bInterval 0
Language IDs: (length=4)
0409 English(US)
: lab31; |
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