lsusb - 1

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Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 04f3:0446 Elan Microelectronics Corp. 
Bus 001 Device 002: ID 5986:055e Acer, Inc 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

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