Re: lsusb omits some devices and (apparently) cannot be fixed

On Thu, Sep 13, 2007 at 05:34:02PM -0500, Karl O. Pinc wrote:
> 
> On 09/13/2007 05:17:17 PM, Aurelien Jarno wrote:
> > Karl O. Pinc a ?crit :
> 
> > > lsusb silently ignores at least some permission errors, resulting in
> > > no output for the device to which there are no permissions.
> 
> > 
> > As already explained, lsusb does not parse /dev, but uses libusb for
> > that. If a device is not in the list given by libusb, lsusb has no way
> > to guess that a device is missing.
> 
> That's why I'm writing to (I hope) the authors of Linux's usb
> internals, so they can expose an interface libusb can use
> to come up with good error reporting.

The internals are exposed, it's up to your distro to properly hook them
up so that you can see them.  I suggest that if your distro is somehow
keeping you from reading from the usb device nodes in /dev/bus/usb/ that
you take it up with them, as that differs from the "standard" that all
of the major distros have agreed apon.

thanks,

greg k-h

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