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how to see a linux serial port from a USB

Posted: Fri Aug 17, 2012 1:26 am
by bi-andrea
detection system is to engage in something like a cable modem, another computer, the control unit, in short, everything to make it connected.
So this is the procedure without cable

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lusb

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Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
cable and put something at the other end

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lsusb

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Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 023: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

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modprobe usbserial vendor=067b product=2303 

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modprobe pl2303

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dmesg | grep ttyUSB*

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[  779.498926] usb 1-1: pl2303 converter now attached to ttyUSB0
[  784.592444] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[  786.216004] usb 1-1: pl2303 converter now attached to ttyUSB0
[  787.568442] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[  788.448004] usb 1-1: pl2303 converter now attached to ttyUSB0
to have the module loaded at next boot of the PC type

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depmod
performed with Gentoo, Debian, Ubuntu