Above is my device configuration.I am trying to get data from it ,I am using below code to to get the data
document.getElementById("request").onclick = function() {
navigator.usb.requestDevice({
filters: [{
vendorId: 1659
}]
})
.then((requestedDevice) => {
device = requestedDevice;
}).then(() => {
console.log(device);
console.log(JSON.stringify(device));
return device.open();
}).then(() => device.selectConfiguration(1)) // Select configuration #1 for the device.
.then(() => {
return device.reset();
}).then(() => device.claimInterface(0))
.then(() => {
return device.transferIn(3, 64)
})
.then((data) => {
debugger;
console.log(data)
}).catch(err => {
console.log(err);
});
}
I am selecting the endPointnumber ,and the interface correctly but it doesn't seems to work ,am I missing something here ? .Please help .I am not getting any error ,device seems to connected but the data transfer is not happening from machine to browser.
I saw this question it has same exact scenario as mine WEBUSB getting serial data PL2303
But in my case I am not getting any data even .
I tried this driver https://github.com/tidepool-org/pl2303 in node js and it worked ,but I want to do it web usb api .
Edit -I worked on the it ,and now the data seems to be coming continuously
async function Get()
{
let device= await navigator.usb.requestDevice({ filters: [{ vendorId: 0x067b,productId:0x2303 }]})
console.log(device);
await device.open({ baudRate: 9600 });
await device.selectConfiguration(1);
await device.claimInterface(0);
while(true)
{
let result = await device.transferIn(3,64);
var string = new TextDecoder("utf-8").decode(result.data.buffer);
console.log("hii",string);
}
The only problem ,I am facing write now is the data transfer doesn't starts until some data is sent to the device ,when i am using node js driver to to send the data ,it works and I receive the data ,but only with web usb api it doesn't work
