Usbutil For — Mac

sudo usbutil reset-port 0x14130000 Note: This requires sudo and must be used carefully; resetting the wrong port can disrupt keyboard/mouse input. On laptops, you can query or toggle power to individual USB ports (e.g., to conserve battery or force a hard reset). Example:

When most Mac users need to interact with USB devices, they turn to the graphical System Information app (formerly System Profiler) or the system_profiler SPUSBDataType command in Terminal. However, buried deep within macOS is a lesser-known, command-line utility designed specifically for lower-level USB debugging and device management: usbutil . usbutil for mac

$ usbutil monitor ** (usbutil:1234): DEBUG: 15:32:01.045: Device added at 0x14130000 (vid:0x0781 pid:0x5583) ** (usbutil:1234): DEBUG: 15:32:05.123: Device removed at 0x14130000 Press Ctrl+C to stop monitoring. This produces a massive, highly technical dump of the USB host controller state, including endpoint descriptors, transfer speeds, and I/O Kit registry entries. It is primarily used by Apple engineers or kernel debuggers. 4. Reset a USB Port ( usbutil reset-port ) When a device becomes unresponsive (e.g., a USB audio interface stops streaming or a flash drive fails to mount), you can reset the specific port without restarting your Mac. sudo usbutil reset-port 0x14130000 Note: This requires sudo

Unlike its Linux counterpart ( lsusb ), macOS does not ship with a dedicated lsusb command. Instead, Apple provides usbutil —a lightweight but powerful tool for examining the USB bus hierarchy, testing device connections, and diagnosing kernel-level USB issues. usbutil is a native macOS executable located in /usr/sbin/usbutil . It interacts directly with the AppleUSBHostController and the I/O Kit framework. While average users will never need it, developers, firmware engineers, and IT support specialists can leverage it to inspect device descriptors, reset USB ports programmatically, or monitor USB power events. Key Commands and Their Usage To use usbutil , open Terminal and type usbutil followed by a subcommand. Below are the most valuable options available as of macOS Ventura and Sonoma (14/15). 1. List Devices ( usbutil list-devices ) This is the closest equivalent to lsusb . It prints a hierarchical tree of all attached USB devices, including hubs, internal components (camera, Bluetooth controller), and external peripherals. However, buried deep within macOS is a lesser-known,