TS-TPC-7990 USB OTG

The TS-7990 brings out a USB device port on P1 which can allow the board to act as a USB device. Several gadget device drivers are compiled into the default kernel. Additional devices can be compiled into the kernel by following the section here.

USB Serial

modprobe g_serial use_acm=1

This will create a /dev/ttyGS0 immediately after this modprobe is run. When this USB is connected to another Linux system this will show up as /dev/ttyACM0. See the kernel documentation for more information:

• USB Gadget Serial documentation
• Windows CDC-ACM INF file

USB Ethernet

modprobe g_ether

This provides a usb0 network interface which simulates an ethernet network connection between the host pc and the i.MX6. This uses the Ethernet CDC driver on the host system where it is connected. Under Windows the inf file will be needed:

• Windows driver inf