Re: Proposed patch for cp210x: GPIO and USB descriptor control

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On Wednesday 19 May 2010 10:29:46 am Greg KH wrote:
> On Wed, May 19, 2010 at 10:23:30AM -0600, R. Steve McKown wrote:
> > On Tuesday 18 May 2010 08:01:09 pm you wrote:
> > > On Tue, May 18, 2010 at 04:57:37PM -0600, Steve McKown wrote:
> > > > On Tuesday 18 May 2010 08:55:39 am Greg KH wrote:
> > > > > On Tue, May 18, 2010 at 08:44:59AM -0600, Steve McKown wrote:
> > > > > - Set VID, PID and descriptors: product, serial, and device
> > > > > version.
> > >
> > > You can dynamically change the vid and pid and stuff?  Heh, that's
> > > going to be fun to track :)
> >
> > Thankfully it takes some work to get valid VID/PID allocations, so I
> > don't suspect a rash of new ones as a result of this driver.  We just use
> > the default VID/PID, even though we've toyed with getting our own.
>
> Oh, you have not seen what people do in the real world.  I have a bunch
> of devices here with a vid/pid of 0x0000/0x0000.  And those are devices
> you can go buy from the store today...

Really?  That's foretells some broad and unpleasant consequences...

> Lots of companies set these fields to random values, do you really want
> to make it easier for them to do this?  :)

No, I just want to set the descriptors when they must be set.

> [snip]

We're getting farther from a patch having reasonable chance of inclusion, not 
closer.  AFAIK, only my company has shown any interest in such features under 
Linux.  I don't think the effort to benefit ratio makes this a patch worth 
considering any longer; I'm disinclined to ask you to waste your valuable 
time.  We can revisit if/when others start asking for such capabilities.  And 
then, we'll have a wider group to consider the issues to be resolved.  In the 
mean time, folks can always play with our code; we post our OSS stuff at 
http://oss.titaniummirror.com.

All the best,
Steve
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