On 20/03/2020 12:29, Thierry HUCAHRD wrote:
Hi,
No, this has nothing to do with eSCL.
ippusbxd allows you to use escl backends on the usb.
The problem is that sane doesn't detect the scanner on the usb anymore,
so PIXMA can't be used anymore.
I don't know if ippusbxd solved the problem?
in any case if the device has a usb driver, ippusbxd is not necessary!
On the other side if you have ippusbxd or ipp-usb running you do not
need one of the device-specific USB drivers like pixma, as IPP-over-USB
is designed for driverless operation of multi-function devices and so
every device which supports IPP-over-USB also supports printing and
scanning using manufacturer-independent standards, for scanning currenly
usually eSCL. So with an IPP-over-USB daemon (ippusbxd or ipp-usb)
running you are supposed to scan with an eSCL backend (escl or airscan).
This way multi-function devices which are not from HP (HPLIP) or from
Canon (pixma) scan with free software.
Till
