On Mon, 2005-08-08 at 17:03 +0530, kanhu wrote: > Hi all, > > Can anybody help me on how to differenciate multiple usb ports on a > system running fedora core 3. > Is there any commands available to know this. > ls -all /dev/ttyUSB shows me > > ttyUSB0 ttyUSB10 ttyUSB12 ttyUSB14 ttyUSB2 ttyUSB4 ttyUSB6 > ttyUSB8 > ttyUSB1 ttyUSB11 ttyUSB13 ttyUSB15 ttyUSB3 ttyUSB5 ttyUSB7 > ttyUSB9 > > Currently I am using only one USB port for my mouse. > I have pluged in the Usb-To-Serial converter on one of my USB PORT, And > try to configure it by minicom -s > it shows me > > minicom: cannot open /dev/ttyUSB0: No such device or address > > I have tried it for USB0,USB1,USB2....... > > Any Idea to proceed is welcome > > > With Thanks & Regards > Kanhu > Does /var/log/messages help to define the device? I have a 4 port keyspan USB to RS-232 converter and I get the following when I plug in the device: Aug 8 08:02:33 tweedy kernel: usb 1-4.4: new full speed USB device using ehci_hcd and address 7 Aug 8 08:02:33 tweedy kernel: keyspan 1-4.4:1.0: Keyspan - (without firmware) converter detected Aug 8 08:02:33 tweedy kernel: usb 1-4.4: USB disconnect, address 7 Aug 8 08:02:33 tweedy kernel: keyspan 1-4.4:1.0: device disconnected Aug 8 08:02:34 tweedy kernel: usb 1-4.4: new full speed USB device using ehci_hcd and address 8 Aug 8 08:02:34 tweedy kernel: usb 1-4.4: configuration #1 chosen from 4 choices Aug 8 08:02:34 tweedy kernel: keyspan 1-4.4:1.0: Keyspan 4 port adapter converter detected Aug 8 08:02:34 tweedy kernel: usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB0 Aug 8 08:02:34 tweedy kernel: usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB1 Aug 8 08:02:34 tweedy kernel: usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB2 Aug 8 08:02:34 tweedy kernel: usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB3 Aug 8 08:02:34 tweedy usb.agent[23799]: Keeping default configuration with /sys//devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.4 In my case port 1 of the device is ttyUSB0 followed by the others. dmesg, likewise gives the following: usb 1-4.4: new full speed USB device using ehci_hcd and address 8 usb 1-4.4: configuration #1 chosen from 4 choices keyspan 1-4.4:1.0: Keyspan 4 port adapter converter detected usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB0 usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB1 usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB2 usb 1-4.4: Keyspan 4 port adapter converter now attached to ttyUSB3 Bob...
