Re: USB Driver help needed

On Tue, 24 Jul 2007, Ron Gage wrote:

> Greetings:
> 
> I need some help here.  I am trying to develop a driver for an 
> "EnsureTechnologies Xyloc Model U-1" USB-based security device.  It is 
> basically an RFID receiver and matchbook sized serialized remote - the 
> RFID receiver detects when the remote is within range and reports back 
> to the computer the serial number of the remote as well as signal 
> strength.  The idea being that if you leave your computer (which is 
> protected with the device), the computer will automatically lock until 
> you (and the remote presumably) return to the computer.
> 
> Anyhow, the device appears to require a non-standard function code in 
> the URB header, code 0019.  SnoopyPro (yeah, on Windows) says this 
> function code is "Vendor Endpoint".  Obviously, there isn't any current 
> way to send such a function code with the Linux USB stack.  Problem is, 
> the device will not accept the data payloads from a control message.  It 
> also doesn't help that the device is making heavy use of undocumented 
> request codes as well.  According to the SnoopyPro logs, the device 
> makes very heavy use of the "Vendor Endpoint" function code - after 
> device setup, every command from the host to device is under this 
> function code.
> 
> Anyhow, I would like to get this device working somehow under Linux.  
> The manufacturer has been absolutely no help - completely unresponsive 
> (no surprise there).  My questions: 1) is there any way to send a 
> "custom" function code through the Linux USB stack and 2) can you offer 
> any advice on how to approach this problem.

This is old email, right?  We already discussed your problems at length 
on linux-usb-users.

Alan Stern


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