USB Device Add reading wrong attributes on Linux

[Drew Moseley]

I've noticed a case with a USB device on a linux host where some of the
attributes are not being properly initialized.  Specifically the
can_wake_up and is_self_powered fields are incorrect because when HAL
reads the bmAttributes sysfs file it gets a read error.  A restart of
hal usually brings the correct values in.

In the kernel code for the USB sysfs files there is a comment that
"Unforunately these attributes cannot be created before the uevent is
broadcast".  I do see in the kernel where the sysfs file is being read
by HAL but getting an error.  Has anyone else dealt with this?  Should
there be a retry of some kind in HAL to handle this?

Thanks,
Drew