jetson-customize-usb

To customize USB2 and USB3 ports on Jetson platforms, you modify the kernel-DTB overlay to enable or disable specific ports, set their roles to host or device, and configure VBUS-EN, OC, and CC GPIOs based on your hardware design specifications.

A kernel DT overlay configures USB port roles on Jetson platforms by modifying the device tree bindings to define whether a USB2 or USB3 SS port operates as a host, device, or OTG, alongside setting the associated ancillary GPIOs for VBUS-EN and OC.

Yes, you can enable specific USB ports and disable others on Jetson hardware by applying a kernel-DTB overlay that explicitly toggles the activation state of USB2 and USB3 SS ports to match your custom carrier board design requirements.

Configuring VBUS-EN and OC for Jetson USB ports requires specifying the correct ancillary GPIO settings within the kernel-DTB overlay, ensuring the hardware customization workflow properly maps the VBUS enable and over-current pins to the designated USB2 or USB3 SS port.

You need to modify the kernel DTB overlay for Jetson USB customization when working on a custom carrier board that requires activating specific USB ports, changing port roles, or redefining VBUS-EN, OC, and CC GPIO configurations for your hardware design.

Customizing Jetson USB ports with a DT overlay configures the Tegra xusb controller parameters by defining port enablement, role assignments, and GPIO mappings, ensuring the hardware customization aligns with the BSP specifications for your custom carrier board.