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List:       uclinux-dev
Subject:    [uClinux-dev] Where to find USB VID and PID?
From:       Eric Fowler <eric.fowler () gmail ! com>
Date:       2014-02-05 18:14:56
Message-ID: CAC_tj_qrEr7LsP5LWJuZbuDtsN375_mgR1ep0Q9_DSK6_PKp=Q () mail ! gmail ! com
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I posted this to kernelnewbies without much success.

I have an Emcraft SmartFusion2 board with a USB interface, running
ucLinux. When I plug the board to a Windows machine, said Win machine
sees an 'unknown device', which usually (always) means VID_0000 and
PID_0000. This is separate and independent of the USB and JTAG
interfaces that are used for programming, network access, and
debugging, which are all working as expected.

How do I:
- Find the device on the linux side that maps to that endpoint, if it
exists (I have already found the device object for the root hub)?
- Interrogate for the VID & PID that a given USB device presents to
the connecting host?
- Manipulate the VID & PID on a USB device on ucLinux?

Thanks as usual

-- 
cc:NSA
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