Re: [PATCH v2] arch/tile: add hypervisor-based character driver forSPI flash ROM

[Greg KH]

On Sat, May 28, 2011 at 08:32:07PM -0400, Chris Metcalf wrote:
> > As you are only using 1 minor device, why not just use a misc device
> > instead?  It's simpler, and you get the sysfs code for free, which you
> > forgot to do, so your device node will never show up in userspace :(
> 
> Interesting; this appears to be a bug.  We use 4 minors (see "srom_devs =
> 4" higher up).  I'll fix this.  We may have some other devices that would
> benefit from being recast as misc devices, so I'll look at our set of
> internal devices.

This kind of implies that you didn't test this code, right?  You might
want to do that next time :)

> Is there a good example of a character device that has multiple minors and
> also is registered with sysfs?

Lots of them, look all over the kernel, and in LDD3 there's even an
outdated example of one I think.

thanks,

greg k-h
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