Re: Where to find the information how to write a state of the art USB driver?

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On Thu, Jan 13, 2022 at 07:54:19PM +0100, Philipp Hortmann wrote:
> On 1/13/22 4:33 PM, Greg KH wrote:
> > On Thu, Jan 13, 2022 at 07:39:38AM +0100, Philipp Hortmann wrote:
> > > On 1/12/22 10:54 AM, Greg KH wrote:
> > > > That driver tried to be an example for an unknown device, doing multiple
> > > > different things that no single driver/device would probably ever need.
> > > > Also it can almost always just be replaced with a simple userspace
> > > > program using libusb, as I bet your driver could be replaced with as
> > > > well, right?
> > > Yes it can be replaced by a userspace program but even this is not required.
> > It is an issue if you are trying to write a new driver.  We do not take
> > new drivers into the kernel tree if they can be in the kernel instead.
> > 
> 
> Sorry I did not clearly express what I plan to do. I plan to do maintenance
> and bug fixes on the kernel.

That's wonderful, try starting out in drivers/staging/*/TODO for lots of
things that need work.

Messing around with old USB drivers that "just work" and you don't have
the hardware for, might be a tough thing to work on as a beginning task.
No need to touch things that no one is complaining about if you can help
it :)

thanks,

greg k-h

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