On 09/13/2007 05:59:13 PM, Aurelien Jarno wrote:
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 écrit :
> >> lsusb silently ignores at least some permission errors, resulting
> >> no output for the device to which there are no permissions.

Just set the environment variable USB_DEBUG to 255 and you will see an
error message. But the binary interface of libusb has not been design
to report such errors, and changing it now will break a lot of
You will have to wait for the next generation of libusb that is
currently being developed.

Fine by me, so long as there's a fix sooner or later.
I'm writing to point out the need for a fix, so that it does
not get overlooked in the next iteration.  I searched this list
as so far as I know it's not been brought up.  (And I've gotten
some small encouragement from the #debian irc channel to
report this as a problem.  It's bad when you've been
telling people to lsusb and then you find out that
the results may or may not be accurate.)

Does anyone think that the described behavior is desirable?
If not then that's about as much assurance as I can hope for
that somebody will do something to fix the problem.
OTOH if it's not going to get fixed I'd like to know that

This is the point where it's polite to thank folks
for all the work they've done.  So thank you.


Free Software:  "You don't pay back, you pay forward."
                 -- Robert A. Heinlein

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