Main Site Documentation

USB Errors


#1

I am getting occasional USB read/write errors. Has anyone experienced anything like this. When the code below is executed sometimes the bytes read back are 0 instead of 4. This only happens once in a while and it appears that the USB connection is interrupted… At first we thought it was a noise problem with the USB bus, but now we have a very low noise environment and it is still occurring.

bytesRead = ReadPipe.TransferData(result, 0, result.Length);


#2

What are you connecting to? Does it draw a lot of power?

I had problems when writing the XBox360 controller driver with my USB port not being able to supply enough power to run both rumble motors at full power. I had the same issues you were describing as the device browned out.


#3

That is a helpful suggestion… I will look into that posibility… Thank you!


#4

If there are errors, it throws exceptions. Are you getting disconnect events when this happens?..