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

[Johannes Meixner]

Hello,

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
https://en.opensuse.org/SDB:Configuring_Scanners

For more details and history see
https://alioth-lists.debian.net/pipermail/sane-devel/2016-November/034901.html
and follow the links therein, in particular see
https://alioth-lists.debian.net/pipermail/sane-devel/2015-December/034197.html

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
https://alioth-lists.debian.net/pipermail/sane-devel/2016-November/034901.html


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