[sane-devel] Problem with Canon Lide 220 scanner / sane / genesys: Device busy after computer start

[Paul Wolneykien]

В Wed, 15 Dec 2021 17:49:32 +0100
thillosen at free.fr пишет:

> Interestingly, if I try:
> scanimage --device "genesys:libusb:001:003" --format=tiff > test.tiff
> Then it reports me: "Failed: device busy".

  It seems that some process is sitting on the scanner in the
background. Try to determine what it is. Maybe the fuser command can do
that.

> I found a weird bypass to get the scanner working:
> If I keep pushing the physical "Send" button on the scanner and then 
> start a scan program on the computer

  Then, it can be a button daemon. Search for scanbuttond or scanbd in
the list of running processes.