Back in June 2004, Alan Stern answered a question about whether
it was possible to power off individual USB ports via /sys with
a resounding "No". Has this changed in later kernel versions? I notice
there is a devices/*/power/state file which is writeable.

Our particular issue is that we have a USB flash device which sometimes
doesn't enumerate, and we're interested in whether there's a (simple)
way from user space software to force a re-enumeration of that 
port only. Currently we have a monolithic kernel, so module unloading 
is not an option (would that work if it were?).

Thanks,
sf (climbing up the learning curve).


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