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Can't find /dev/ttyUSB or /dev/ttyACM

Bindu Jagannatha
Prodigy 210 points
Other Parts Discussed in Thread: OMAPL138

Hello everyone,

I am using the OMAP L137 and trying to connect the USB1 (USB 1.1 port) to a USB-serial converter, in order to connect to a PC. I have enabled the necessary things in the kernel, but I am still unable to find it in the /dev folder. The following is output during boot: 

usb 2-1: new full speed USB device using ohci and address 2
usb 2-1: New USB device found, idVendor=067b, idProduct=2303
usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-1: Product: USB-Serial Controller
usb 2-1: Manufacturer: Prolific Technology Inc.

I guess means I built the kernel properly. But I am still unable to see it in /dev

Please help.

  • 0
    TI__Mastermind 43955 points

    Hi Bindu,

    When the drivers for USBToSerial converters are enabled during kernel configuration, you would be able to see the nodes for the ports like ttyUSB1. I personally experimented ( though it is for OMAPL138 EVM ) and able to get /dev/ttyUSB1.

    Make sure you enabled the following:

    sudo make ARCH=arm CROSS_COMPILE=/opt/arm-2009q1/bin/arm-arago-linux-gnueabi- menuconfig

    Please let me know whether it worksfor you.

    Regards,

    Shankari

     

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