CODEWITHSUNDEEP
javascriptgoogle-chromesmartcardwebusb
alberman
alberman

Reputation: 1

Failed to execute 'open' on 'USBDevice': Access denied

I am trying to access a smart card reader on the client with the Web USB API in order to establish a connection with the server and be able to send commands to the smart card, but it fails to execute device.open(). I attached this code to a button click, and I tried to arrest other applications who were claiming the device but with no fortune. I know this is possible because of other web applications working similar but i am stuck. I think the problem is that some other windows process is requestiong the device and chrome can't access it because of it. Here is what i have:

async function requestDevice() {
  const vendorId = 0x04E8;
  const productId = 0x5780;
  navigator.usb.requestDevice({ filters: [{ vendorId, productId }] })
    .then(device => {
       return device.open()
        .then(
           console.log(device.name);
         )
    })
    .catch(error => console.error(error));
}

On the console: DOMException: Failed to execute 'open' on 'USBDevice': Access denied.

Upvotes: 0

Views: 2648

Answers (0)

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