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USB 3.0 enumearation

Last response: in Storage
June 23, 2012 7:10:17 AM

Hi My name is Divyang Mali & I am working in one of the semiconductor company in Bangluru(India).

We are developing USB 3.0 device IP. But, we stuck in issue regarding to Enumeration of USB 3.0 in Windows.

As we debug this issue we found that Enumeration is not progress after DEVICE DESCRIPTOR request with NEC Host Controller. In Device Manger it shows unknown device. As we go for device properties, under General tab device status is "The device can not start. (Code 10). Unable to access the registry". And also under Events tab information is "Device USB\VID_PID.... has a problem starting with (null)".

And, our device is a custom class device.

So, please can anybody help me on this or provide some information on this.



More about : usb enumearation

a b G Storage
June 23, 2012 7:29:18 AM

let me get this straight. you are building USB 3.0 devices. and are asking for help designing your chip/drivers. in a forum for consumer hardware...

I don't mean to be rude but I think you're barking up the wrong tree. that's the sort of thing you hire someone for, not get a simple answer
a b G Storage
June 23, 2012 8:47:19 AM

wanna help but looks like it's out of my reach.......... :sol: 

unksol is right u may find better luck in developer forum, but if anyone here wants to share the wisdom/knowledge about this go ahead...