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如何在不使用 lsusb 的情况下检查 USB 设备是否存在？

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如何在不使用 lsusb 的情况下检查 USB 设备是否存在？

我想查看是否存在 USB 设备，但我没有 lsusb。

有没有其他方法可以检查 USB 设备是否存在而无需使用 lsusb？

答案1

mount -t usbfs none /proc/bus/usb 
cat /proc/bus/usb/devices

如果您没有usbfs模块或/proc/bus/usb目录，请尝试此操作

cat /sys/bus/usb/devices/*/product

答案2

# cat /sys/kernel/debug/usb/devices

答案3

你也可以尝试这个命令

$ usb-devices

它会给你这样的东西，

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 1
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev=03.19
S:  Manufacturer=Linux 3.19.0-59-generic xhci-hcd
S:  Product=xHCI Host Controller
S:  SerialNumber=0000:02:00.0
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480 MxCh= 4
D:  Ver= 2.10 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2109 ProdID=3431 Rev=04.20
S:  Product=USB2.0 Hub
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=5000 MxCh= 4
D:  Ver= 3.00 Cls=09(hub  ) Sub=00 Prot=03 MxPS= 9 #Cfgs=  1
P:  Vendor=1d6b ProdID=0003 Rev=03.19
S:  Manufacturer=Linux 3.19.0-59-generic xhci-hcd
S:  Product=xHCI Host Controller
S:  SerialNumber=0000:02:00.0
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 6
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev=03.19
S:  Manufacturer=Linux 3.19.0-59-generic ehci_hcd
S:  Product=EHCI Host Controller
S:  SerialNumber=0000:00:12.2
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 6
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0002 Rev=03.19
S:  Manufacturer=Linux 3.19.0-59-generic ehci_hcd
S:  Product=EHCI Host Controller
S:  SerialNumber=0000:00:13.2
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=04 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=480 MxCh= 4
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=05e3 ProdID=0608 Rev=77.64
S:  Product=USB2.0 Hub
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=05 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 3
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1d6b ProdID=0001 Rev=03.19
S:  Manufacturer=Linux 3.19.0-59-generic ohci_hcd
S:  Product=OHCI PCI host controller
S:  SerialNumber=0000:00:12.0
C:  #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub

T:  Bus=05 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=1.5 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=04ca ProdID=0061 Rev=01.00
S:  Manufacturer=PixArt
S:  Product=USB Optical Mouse
C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=usbhid

答案4

这取决于您需要做什么和想看到什么。探索 /sys/bus/usb 下的设备条目可能已经足够了。

另一种方法是使用 udev 来管理检测特定 USB 设备时的特定操作。网络上有很多示例，但例如在插入特定 USB 拇指驱动器时，您可以让 udev 创建一个设备条目，例如 /dev/MyThumbdrive，而不是 /dev/sdd1 或除 /dev/sdd1 之外。

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