I have a need to use USB port on Sabre-Lite running Yocto Linux 3.0.35-ga97a4f4, but need help to define steps to enable dev/ttyUSB0. Currently I have a linux image I downloaded that outputs following message when I plug USB GPS into top USB port next to ethernet port:
usb 2-1.1: new full speed USB device number 3 using fsl-ehci
When I do an lsusb I get:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 0424:2513 Standard Microsystems Corp. 2.0 Hub
Bus 002 Device 003: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
where my USB GPS device is on bus 2 as device 3. I need this mapped to a tty port like ttyUSB0. I don't know if the process I need is referred to as mounting a USB port?
I am new to embedded linux. I have done some research and it appears I need to configure the kernel and rebuild my linux image. Or can I configure the kernel from command line or Uboot? I have not built a linux image for use on the Sabre-Lite, but I have Ubuntu environment on my PC where I can access dev/ttyUSB0 to read my USB GPS device.
Can someone please point me to the steps or procedure I need or explain the steps?