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Home / Device types / USB Peripheral Switch
USB Peripheral Switch diagnostics

Test what the browser can see. Know when it cannot.

Use keyboard, mouse and HID checks after switching to determine whether a peripheral reached the selected host before debugging vendor software.

Run these first

Relevant live checks

Keyboard TestPress keys and verify that the browser receives the expected keyboard events.
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Mouse Button TestVerify left, right, middle, and extra mouse button events.
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WebHID Device TestRequest a compatible HID device in browsers that support WebHID and display its browser-exposed product and vendor identifiers.
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WebUSB Device TestRequest a compatible USB device through WebUSB and display the browser-exposed manufacturer, product, vendor, and product IDs.
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First diagnostic sequence

Do the high-signal checks before risky changes

  1. 1

    Test the device directly without the switch

  2. 2

    Try each switch port and host

  3. 3

    Check whether the switch supplies enough power for bus-powered devices

What DeviceOK/browser can help check
  • Observe input after host switching
  • Request compatible HID and USB devices in supported browsers
What this browser page cannot prove
  • Inspect switch electronics or power delivery
  • Guarantee compatibility with every USB device class