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Does a device need to specifically support WebUSB, or will it work with any USB device so long as the web page supports it? Or is it the browser that needs to s

by roxgib 4y ago

Does a device need to specifically support WebUSB, or will it work with any USB device so long as the web page supports it? Or is it the browser that needs to support the device? I found contradictory information on this when searching.

maushu 4y ago
Should work with any device. The web page needs to implement the driver/protocol to communicate with the hardware.
- amelius 4y ago
  What if the device has strict timing requirements?
- moondev 4y ago
  Even storage devices like thumb drives larger usb3 disks?
memen 4y ago
The website has to start the interaction with the USB device, it can be any USB device (not sure anymore, but i think you had to filter for Vendor ID). The browser needs to support WebUSB, currently only Chrome. On the USB device you can implement the WebUSB descriptor to link to your own website. This will give a notification on your desktop to open your website.
- roxgib 4y ago
  Thanks, I think I misunderstood the last bit to mean the USB device needed to specifically support WebUSB.
ficklepickle 4y ago
Apparently the basic requirement is that the device should not have a driver already claiming the interface. More info here: https://web.dev/build-for-webusb/ https://web.dev/build-for-webusb/