On 2/23/2021 8:13 AM, Martin-Éric Racine wrote:
$ sudo sane-find-scanner
found USB scanner (vendor=0x04a9 [Canon], product=0x2220 [CanoScan],
chip=LM9830) at libusb:002:003
found USB scanner (vendor=0x0411 [Ralink], product=0x00e8 [802.11 n
WLAN]) at libusb:001:004
found USB scanner (vendor=0x0b05 [Ralink], product=0x179d [802.11 n
WLAN]) at libusb:001:003
What is the output of:
$ sudo sane-find-scanner -v -v
The relevant source code is here:
https://gitlab.com/sane-project/backends/-/blob/1.1.1/tools/sane-find-scanner.c#L1039-1060
Apparently, this assumes that if your USB device exposes even /one/
interface where the device class or interface class is
"vendor-specific", then it is a scanner. That is almost certainly the
problem.
