[sane-devel] sane-find-scanner finds Canon Canoscan N24OU, scanimage -L does not

Johannes Meixner jsmeix at suse.de
Wed Nov 21 08:32:21 GMT 2018


On Nov 20 14:37 Terry Spearman wrote (excerpt):
> ... USB ports
> ... 3.0 ports being blue and 2.0 ports being black

"In theory, theory and practice are the same.
  In practice, they are not."

See the section about "USB" in

For more details and history see
and follow the links therein, in particular see

When your scanner can be only connected at your computer
at a USB port where the kernel module xhci_hcd is used
I think in the end the most convenient way to get out
of those troubles is the "ultimate way out" in

Kind Regards
Johannes Meixner
SUSE LINUX GmbH - GF: Felix Imendoerffer, Jane Smithard,
Graham Norton - HRB 21284 (AG Nuernberg)

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