Re: Question about UIO vs DT

[Kuninori Morimoto]

Hi Greg

Thank you for your help

> > > > (A)	[1 reg, 1 IRQ] UIO
> > > > (B)	[1 reg, 1 IRQ] UIO
> > > > (C)	[0 reg, 1 IRQ] UIO
> > > > 
> > > > and (C) will be DT error. Is this known issue ? Do we have better solution ?
> > > 
> > > Yes, write a real driver for the device as obviously it is a complex one
> > > and UIO shouldn't be used for it :)
> > > 
> > > What type of device is this that requires this type of hardware control
> > > and why do you feel that UIO is the proper solution?
> > 
> > One of big reason is license.
> > Because it needs to be proprietary licensed driver, we can't create
> > real driver.
> 
> That is not a valid reason at all, sorry.  So much so that I, and many
> others, have argued that you can not have UIO drivers in userspace that
> are NOT also released under the GPLv2.
> 
> Go work with your lawyers please, there's nothing I can now do to help
> you out with this due to the expectation that you are attempting to
> evade the license requirements here.

OK, Thank you for clearing details and helping us.
I will forward this info to the relatead members.

Thank you for your help !!

Best regards
---
Kuninori Morimoto