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RE: USB Help


Thanks for the tips.  I have Jan Axelson's book, so it's good to hear a
positive review from somebody else.  I also found the Communications Device
Class spec (once you pointed me in the right direction), so I know where to
start.

Thanks again...
--wpd


> -----Original Message-----
> From: Rupesh S [mailto:rupeshs at myw dot ltindia dot com] 
> Sent: Monday, April 16, 2001 10:41 PM
> To: Patrick Doyle; ecos-discuss at sources dot redhat dot com
> Subject: Re: [ECOS] USB Help
> 
> 
> ----- Original Message -----
> From: "Patrick Doyle" <WPD at dtccom dot com>
> To: <ecos-discuss at sources dot redhat dot com>
> Sent: Wednesday, April 16, 2003 6:43 AM
> Subject: [ECOS] USB Help
> 
> 
> > I am starting a project in which we are building a device 
> that will, on
> > occasion, need to connect to a Windows PC to download control and
> > configuration information via USB.  Since I don't want to 
> have to write
> (and
> > maintain!) any windows device drivers, I thought I would 
> make my device
> show
> > up as a "standard" RS-232 USB device.  I was wondering...
> >
> > 1) Is this feasible?
> 
> It is very much feasible,
> 
> > 2) Can anybody give me a good starting point to come up to 
> speed quickly
> on
> > USB?  (Right now, I can't even spell USB, but that will 
> change rapidly.)
> 
> Jan Axelson's "USB Complete" is the best starter for USB.
> 
> > 3) The Windows application developers are all Java 
> developers, and they
> are
> > excited about the possibility of communicating with the 
> device via COM7
> (or
> > whatever).  Is there a better approach that I should consider?
> 
> windows has got support for virtual COMM Port driver (through USB).
> 
> > Any hints will be greatly appreciated.
> 
> Fortunately for u, the Emulated COMM Ports falls under a 
> standard "Device
> Cass" as referred by usb.org. Go through the "Communiation 
> Class Device"
> specification. U'll get this from usb.org. if u r not ble to 
> get it.. tell
> me,, I can send u.
> 
> All u got to do is to write a firmware for ur USB device so 
> that it  matches
> the USB CDC class.
> Windows drivers will be loaded automatically, when u connect 
> ur devic ewith
> the above software.
> 
> 
> > --
> > Before posting, please read the FAQ: 
> http://sources.redhat.com/fom/ecos
> > and search the list 
> archive: http://sources.redhat.com/ml/ecos-discuss
> >
> 

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