Re: [PATCH] USB: Only enable autosuspend by default on certain device classes

On Mon, Aug 20, 2007 at 06:10:00PM -0700, David Brownell wrote:
> On Monday 20 August 2007, Greg KH wrote:
> > On Mon, Aug 20, 2007 at 05:11:17PM -0700, David Brownell wrote:
> > > On Monday 20 August 2007, Greg KH wrote:
> > > > 
> > > > > Nobody's submitted any patches to make "lsusb" work with
> > > > > this new /dev/bus/usb/ option though. ?And there are various
> > > > > other programs floating around too.
> > > > 
> > > > Hm, there's got to be a patch in the suse tree that fixed this up, I'll
> > > > try to find it.
> > > > 
> > > > > Was there actually a need to change /proc/bus/usb and thus
> > > > > start breaking things?
> > > > 
> > > > Yes, /proc/bus/usb can not handle a per-device-node permission setting,
> > > > like a "normal" /dev can.
> > > 
> > > I don't follow.  Switching the mount point for usbfs can't possibly
> > > change how it records permissions and ownership.
> > 
> > No, the mount point is not switched at all, I think we are getting
> > things confused here.
> 
> Right.  My original complaint was "WTF is Ubuntu Feisty doing,
> changing the mount point for usbfs and breaking things?".

Ah, yeah, sorry, yes, I have the same WTF feeling about Ubuntu in this
regards as well :)

> > > But switching the mount point, and installing a ratsnest of cross
> > > links and hidden mounts, *does* break some programs and also makes
> > > it a PITA to do things like restart USB from scratch.
> > 
> > Again, no mount point is changed at all,
> 
> On Ubuntu, it most certainly is changed.  Hence my comment
> about the broken behavior.
> 
> SuSE would seem to be doing something different.  :)

Along with all the other distros, Ubuntu is the odd one here :(

thanks,

greg k-h

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